Gm 3100 engine problems No problem with my new engine hoist. Late 3. Year 2014 Edit Well as it turns out, I ended up buying a 1997 Lumina for $800 (in fantastic condition, despite the price) with this engine back in January. 3 depending on the deal I find but I plan on using the car intake manifold strictly for the appearance. Oct 21, 2011 · Car looks clean but I have read the 3. The CKP sensor is located on the engine block (the side that faces the transmission) and goes thru' the engine block itself. Beowulf Jul 7, 2005 · biggest problem with this series is they like to eat intake gaskets, been that way since early 90's but I think GM has the problem tackled with different gaskets and revised bolt torque specs, but all in all a basically good engine, seen many with over 200k miles May 9, 2006 · The upgraded gaskets are not a factory part for the 3100/3400, but they are for the 3800. 8L turbocharged. Mine Feb 18, 2016 · I have a 1999 Malibu with the 3100 engine that has 112k miles on it. Sep 12, 2012 · Although this case study involves a 2000 Chevy Monte Carlo (with a 3. You may find this on google as LIMG. 4L engine produced from 1991 to 1997. The upper is aluminum, but that is not the problem, its the internal leakage in th lower that usually kills these engines if not caught in time. The replacement gaskets are superior and last longer. Nov 17, 2016 · For more information on mass air flow sensor repairs, read our FAQs page: https://goo. The engine no-start issue is usually due to a bad fuel pump, bad CKP sensor, bad ignition control module, etc. I suggested a We would like to show you a description here but the site won’t allow us. Felpro makes a updated gasket that I've personally used to fix several 3100/3400/3800 series engines. The problem is that silicated (conventional) coolant can damage aluminum parts such as the intake manifold and cylinder heads on 2. 4L GM V6 engine used in Chevy, Pontiac, Oldsmobile and Buick. Give me your opinions on weather or not I should buy it. 09-11-2010, 03:39 PM 53 Chevy 3100 1/2 ton 1st Armored Division, OIF Veteran Sep 23, 2012 · If you have had your 3. However, at 55K miles you may have found a real gem. For some reason, at random, it will rev up to about 2500-3000 RPM. Oct 4, 2012 · The 3300 was used up through 1993 when the 3100 Chevy became the small corporate V6 for most of GM’s compact and intermediate sized cars. 4L V6), you can apply this info to any 3. 4L GM vehicle but, you can prevent a repeat of the problem by doing two very important things: 1. Location #1 in the picture below is on the passenger side front of the engine behind the front timing cover. Engine misfires can occur due to various reasons, including faulty spark plugs, ignition coils, or fuel injectors. 1L V6 Engine . . I put my vacumn gauge on it - the gauge showed the engine timing needed advancing. 1L V6 utilizes a 3. Recently it developed a bad oil leak. Looking underneath, there is oil dripping from the motor mount on that side. The cart has two battery bays, storage for the compression tester, timing light, misc fittings, etc. They replaced the gaskets along with the thermostat. 25 Kit 1812Core. If the engine in your 3. DOES GM DO ANYTHING TO HELP DEFRAY THE COST? Answer: This is a very common problem, but GM does not offer any reimbursement for this repair. ) Use the updated intake manifold gaskets and 2. This means that with one of the following 4 basic tests, we can get to the bottom of the engine's no-start problem: Ignition System Test. I need to find an oil that can withstand some antifreeze dilution for a while until I can find Dec 25, 2012 · When this happens, the PCM disables the fuel injectors after a few seconds of engine run time. - or - The engine will start and run, but it will run with a misfire or will have a rough idle. 1/3. 4L V6 (3100, 3400) Chevy Suburban electrical problems; Chevrolet Camaro Engine Mar 20, 2016 · There were 2800 and 3100 V6 engines used in GM's fwd cars of the 90s. Jul 24, 2012 · GM 3100 Intermittent StallingDisclaimer:This video is not meant to be a definitive how to. 05-23-14 09:15 AM - Post# 2455343 In response to manyagus If you want a 5 speed transmission, your best choice is the T-5 from S-10 trucks up to about 1992. 1L V6 engine is leaky intake manifold gaskets, which can lead to coolant leaks and even engine damage. On the 3100 and 3400s,make sure you have the push rods in the right spot or the valves will bend if you don't. On Thursday, the low coolant The 3100 and 3400 have intake manifold gasket issues, usually around 80,000 to 120,000 miles. Always consult a professional repair man Jan 13, 2003 · RE: Stock temperature gauge/sender I had a simuler problem with my new overhauled 235 I bought a sending unit form Chevy Duty and one from NAPA and both peged out after a few minutes of running, after several changes of sending units and dash units combo's I found a used sending unit in an old 283 engine and it solved my problem, so you might try the junk yards for an old engine?? please Sep 27, 2013 · My project is a 1950 chevy 3100 and I want an LS engine for a few reasons. View large pictures below of common coolant leak areas on the GM 3100 and 3400 V6 engine. 5L V-6 debuted in the then-new Malibu a few years ago. Plus it is more complete. Took to shop in Jul due to temp gauge climbing past half. The pushrods are two differant lengths Customer: I have a 1994 Pontiac Grand Prix with the GM 3100 V6 engine. Mar 2, 2004 · Looking for input from folks that have experience with the GM 60 degree engines. vwnate1 , Feb 23, 2010 Nov 15, 2005 · I've had three GM 3100 engines, with only one tensioner failure. This crank sensor is a 2 wire type and produces an AC voltage signal. I have several 58-62 engines and parts and noticed several differences in the evolution of the 235 and thought the crankshaft may have changed as well. Oct 6, 2023 · The 3. 8 or a 5. I believe for the 60 degree motor Fel-Pro makes an aluminum gasket kit. 4L and 3. The General Motors 60° V6 engine family is a series of 60° V6 engines produced for both longitudinal and transverse applications. The 3. 4L (at: troubleshootmyvehicle. 5-inch bore and 3. Timing Chain inspection , timing cover removal, timing chain replacement. Keeps pretty good maintenance on the car (but not great). These GM 60degreeV6 engines are notorious for this happening. Late 90's, early 00's Malibu. Blown Head Gasket Test. Our RDV has been in the shop for 9 days now with electrical problems,bad BCM,etc. ) are the ones responsible for the induction of the fresh air the engine needs for the combustion process. Especially from the intake manifold gaskets (to learn more about this particular problem, see this article: Coolant Leaking From Intake Gaskets (GM 3. Help identify part in GM 3100 V6 engine bay - Bob Is The Oil Guy Check Details GM 3100 60° V6 Engine • Cars Simplified Check Details May 25, 2013 · Here is a video for fellow GM 3400 & 3100 liter engine owners. P GM 3100,3400,3500 Engine Coolant Temp Sensor ReplacementDisclaimer:This video is not meant to be a definitive how to. 2L LS3 V8/6-Speed Manual Replacement Parts for the GM 3. A must-have for this sort of work. GM 60° 3. Only info. Is the problem with the radiator, or thermostat? GM 3100 engine, knock sensor test. The SFI 3100 engines are the ones you are thinking of and they first appeared in 1994 if I remember right. 018 and put the timing back to zero. The intake manifold gaskets are the most likely cause of your antifreeze leaking and engine oil getting low. Jun 4, 2013 · The General Motors 3. I'm another member of the "Never own another GM" Club. Mar 19, 2016 · 3100 SFI v6. Misfire trouble codes lighting up the check engine light (OBD II): P0300: Random Cylinder Misfire. Picture of the push rod location on the 3. The code is P0401. Nov 7, 2021 · An engine compression issue will cause a no-start problem. 1L or a 3. Have a misfire? This video explains the causes for what could be causing the problem. ) torque the intake manifold bolts with a torque wrench to specification. Engine No-Crank Problem: In this type of problem, the starter motor does not come out to play. "Vortec" technology applied to the cylinder heads aided both power and fuel economy. Otherwise it has been a trouble free engine for my customers. 4L engines are well designed engines, with no major reliability problems, the Intake Manifold Gasket problem isn't as wide-spread as it seems to be and I have not heard of a head gasket problem with the cars, unless you run them hot, then that aluminum block and head might warp a little, which I have seen them do. The engine had a 3. Location #2 is a little harder to see. Sometime around that timeframe, GM went from 10mm rocker bolts to 8mm. So, I kept advancing the timing but it would not cure the problem. Some late model 3. 4L GM equipped vehicle (see the Applies To box on the second column). pulling the engine. GM 3. Aug 30, 2012 · So, in conclusion, I know it sucks that you're having this particular problem with your 3. FUEL PUMP TEST 1: Fuel Pressure Test With Gauge Testing the fuel pressure with a fuel pressure gauge can be very easily done on your 3. 1L or 3. I replaced the gas line and filters this winter and rebuilt the carb thinking I would resolve the issue. (something GM Jun 15, 2004 · The 3500 Value engine in the Malibu is a 60 degree high (er) tech derivative of the 3100 and 3400 gems. Oct 11, 2011 · 2) turn key to RUN (do not start engine), record fuel pressure. 1L V6 Engine Sensor Locations Has GM fixed the leaky intake manifold gasket problem yet? If so what year? I am considering a used buick century 2004 or 2005 (3. Replaced coil pk and ignition switch and it still wont Sep 18, 2005 · The Chevrolet designed 3. 55 is about right if you still have the stock engine. GM 3100 60° V6 Engine • Cars Simplified. The threads are the weakest point in the assembly The torque spec for the rockers is remarkably low. In other words, the engine in your car or mini-van starts and runs for a few seconds and then shuts off. com 3. 122 inches, a compression ratio of 8. May 18, 2012 · Six Common Problems of the 3. Aug 14, 2003 · Yup, hate to say it, but the 3500 and 3900 High Value engines are pretty much junk after 100,000 miles IMO; our Impala with the 3500 has also had the oil pan gasket replaced, head gaskets replaced, water crossover gaskets replaced twice (this was the design GM implemented to curtail the previous intake gasket fiasco - FAIL (it uses a cheap o-ring style gasket that has been redesigned multiple Apr 28, 2011 · It's a reasonable stout little engine that fit nicely into a mid sized FWD car and less easily into a compact. 4L). Now, the engine will not start. Now just pull up on the whole rail assembly and wiggle till it comes off as an entire assembly. Coolant Leaking From Intake Gaskets (GM 3. What should I check next? How can I be sure the new EGR works or my old one is bad? From what I can see on this engine t Feb 10, 2004 · You'd think after all these years that GM could build a V-6 engine that could keep its coolant where it belongs. Nov 24, 2003 · Subject says it all. 50” bore with a 3. Jul 2, 2003 · Dorman has the better kit over the Fel Pro kit,it comes with new bolts which GM says to use new bolts on the 3100 and 3400s. They also have threaded inserts for both sizes of thread View sensor location pictures for the GM 3400 and 3100 V6 engine used in Chevrolet, Buick, Pontiac and Oldsmobile cars and trucks. GM used a crappy gasket that wears and causes a coolant leak. 1L, 3. Engine Compression Test. 2017 Chevy SS Sedan • 6. They came equipped with fuel injectors that may need regular cleaning if used for a lot of short trips. fuel pressure should be maximum (40-55 psi, I think) 3) start engine (make sure engine is at operating temperature (I notice your previous scan the engine was not yet up to temperature). It has a 235 6 cyl engine, with generator and foot starter and 4 on the floor tranny. Will the timing chain be Jul 12, 2020 · My 48 runs a 48/53 "mountain"/ heavy duty radiator, from any number of Chevy parts dealers. I did hear Fel Pro was sueing Dorman over the copy of the design of the upgraded intake gasket. 4L family have been conventional pushrod designs with two vales per cylinder. 3. If GM wont stand new intake gaskets for our AWD 2002 Buick Rendezvous CXL with the 3400 I've probably bought my last GM vehicle. I will buy either a 4. In other words, it does not crank the engine. Cars powered by this engine during those years included the Chevrolet Malibu, Pontiac Grand Prix and the Oldsmobile Cutlass Supreme. 4L equipped GM car or mini-van for any length of time, you've come to find out that these engines are coolant-leak prone. 1 engines give people a lot of trouble, like blown head gaskets, ext. Looking up, the 1950 Chevy 3100 Frame-Up Restoration Step-By-Step. 5L to 3. 4L. 4L)). If you look at some of the GM forums and Edmunds, many people are reporting head gasket leaks. Checking out this first is a must before you check in to any starter problems. 1L and all 3. The engine is not as peppy as it used to be. Ran engine flush and put amsoil 5w30 (recommended viscosity by gm) and it was back. Jul 13, 2005 · There are several distinctions between the GM/Chevy 3. ). Possible internal engine problems are: May 18, 2011 · Ignition System: The ignition system on the 3. JUST GOT THE BAD NEWS IT NEEDS NEW ENGINE. But before I proceed, I want to start the engine,just to ensure it will start, not started for 2 years. If the rest of the car is in good shape, I'd certainly go with Trav's advice, a low mile used engine. The problem you are having is transmission related, not engine, unless the idle is very high. You'll also be able to find out if a compression problem is causing an engine no-start problem. 4L Monte Carlo (Venture, Beretta, Corsica, Lumina, Monte Carlo, Grand Prix, Grand Am, Cutlass Supreme, etc. 5 and 3. Not easy to tell by the eye what is what and goes to where ? The Old online chevy manuals have wiring diagrams . Upon further investigation, i discovered that the oil leak is coming from around one of the sensors that is screwed into the side of the engine block, located about half way up the block, just above the starter on the front side of the General Motors produced the 3100 SFI (Sequential Fuel Injection) V-6 engine for its cars from 1993 to 2003. 1L V6 is a sixty-degree sequential fuel-injected six-cylinder engine produced by General Motors for Chevy, Olds, and Buick sedans from 1993 - 2005. Jul 18, 2023 · One of the most frequently reported problems for the 3. When replacing parts on this type of engine, some commonly replaced items include seals and gaskets as well as spark plugs and wires which can become worn over time due to normal wear-and-tear or lack of proper maintenance procedures being followed by previous owners of the vehicle in question . A specific block casting (#10065459) from 1988-1990 FWD cars and minivans is also known to develop cracks near the center cylinders. They were surprisingly torquey and made ok power for what they were. The exhaust valve, which runs the hottest, starts to stick in its guide. The investigation applies to the 6. The light is still on. " i have one and my mechanic was thrilled to see it after the problems i had with my Dec 18, 2005 · My GM 3100 has the typical piston slap. The core won't be rated to handle the pressure you'll need to run with that engine. 1 V6 and my son now uses it every day. Leave a comment with any q Apr 13, 2009 · If your vehicle is suffering a misfire (where it starts and runs but the engine misses), the article you need is the one about testing the ignition coils, go to: How To Test The Ignition Coil Packs (GM 3. com ). May 5, 2021 · The engine has cylinder compression problems. Jan 17, 2025 · The National Highway Traffic Safety Administration (NHTSA) opened an investigation on Thursday into GM for engine failure in some full-size trucks and SUVs. Fixing common issues with GM 3100 - 3400 Engine: Learn how to solve the coolant leakage problem and prevent future failures. Please replace the current information in the Service Manual with the following information. at 1322 mileage threw engine code for P2C7A . Jun 11, 2010 · I have a 1996 Regal with the 3100 V6 that has a check engine light. Unfortunately a PASS-Key/Passlock failure mimics a failed fuel pump problem and usually makes the vehicle owner think that the fuel pump has failed. Dec 3, 2021 · Extended engine cranking (engine takes longer than usual to start). I have been having to add some coolant recently, but I have not noticed any other problems (no overheating, etc). The old gas line had 2 filters, 2 shut off valves and rubber hose between each. Jun 1, 2013 · There's no way for the engine to self-flush the air out of that area, so that cylinder gets hot. Feb 22, 2020 · The 338 gears are for 55 up. I have so far is that there was oil in the antifreeze, and it is loosing some antifreeze on the ground. com). These engines have proven to be exceptionally durable, but they’re finally coming due for a rebuild, so it’s time to take a look at the 3300 and review all of the changes that were made during the few Customer: I have a 1999 Chevy Lumina with 3100 engine, recently the temp gage goes all the up and the coolent is pushed into the overflow tank. Gasket Failure. Hesitation when you accelerate the vehicle on the road. As an amateur restorer, I first set out to create the engine stand (front end of a badly burned out 1954 3100) and a portable starting caddy I call The Start Kart. 4L V6 engines use 2 crankshaft position sensors. Common engine sensor and control component locations for the GM 3. I like to have a plan "b" and "c" at all times if possible. gl/GwF7iXThis video shares tips for replacing the mass air flow sensor Oct 30, 2005 · Had 2 major engine breakdowns in the family in the last few years---a 3400 that blew a head gasket and overheated(we had engine replaced) and a 3100 that a leaking intake manifold gasket caused a cylinder to hydrolock, killing a rod bearing(car went to graveyard). Feb 22, 2010 · My '49 3100 is so equipped and it'll drive all day long @ 65 MPH , no engine strain . Now in case you're wondering what vehicles this article applies to, it applies to most of the GM models (Buick, Chevy, Olds, and Pontiac) with either a 3. The ECU sets the car at a relatively high idle just to warm it up more quickly, and as the coolant temperature rises enough to become adequate, the engine does slow down somewhat into an idle around 650-800rpm. The test I'm gonna' show you here starts involves the following 3 steps: Jan 17, 2022 · The GM 3900 engine's family, the High-value engines were succeeded by another set of engines, GM High feature engines; thus attesting to the limitations and challenges related to the older set of engines. Finding the exact cause of the misfire isn't hard, if you know where to start and how to test the component you think is bad and causing the misfire. 0 duramax . 1L sub-section and the Engine Mechanical - 3. 4L) (at: troubleshootmyvehicle. It idles fine but would burp and fart at higher rpm's. The 3500 and 3900 fixed that, but weren't used much. 3) Unplug two connectors, one large one behind the engine and one small one right in front, atop the front valve cover. Re your question as to whether this is common on these GM engines: yes, very. 9 liters. 4L GM V6 engines use two crankshaft position sensors. Oct 11, 2002 · Well, after battling with GM and intake gasket problems over the last decade, GM now has head gasket problems on most of the late model high value V-6s, both the 3. 1L V6 engine enjoyed a long production run from 1988 through 2005. 1 V6 Engine. Brother in laws car. Oct 24, 2014 · The 3. I have replaced the EGR with a working one from a low mileage car. Sep 29, 2014 · The only issue I can think of is the lower intake manifold gasket. Apr 7, 2022 · Time-Serts®️makes two kits to repair stripped threads for the GM 3100/3400 engine. Jun 8, 2000 · The only problem I have see on these engines is the intake gasket leaking coolant at the back of the engine. HAD ANTI FREEZE LEAK. 1L #1 Leaky Intake Manifold Gaskets. This engine had a slight rod knock or upper engine noise that was causing the knock sensor to record a false signal. It needed an initial $823 round of repairs soon after purchase (2 worn tires, fuel pump, tank straps, a few other minor things), pads/rotors (done by me), and an $800 round of repairs in the Fall (battery replacement, brake fluid flush Jun 4, 2013 · Six Common Problems of the 3. Aside that truck runs really good, at dealer in pasadena they made it a horrible experience aside denting and scratching the truck. Codes and Blower Speed Problem are long and How to fix common GM 3400 issues such as, overheating, head gasket repair, intake manifold gasket repair, no 4th gear and misfires. Feb 15, 2011 · This tutorial will walk you thru' the engine compression tests as it pertains to troubleshooting a misfire condition that is lighting up the check engine light (and storing any of the misfire codes: P0300, P0301, P0302, P0303, P0304, P0305, P0306). 9:1, and was a replacement for the multi-port fuel-injected LHO engine. Aug 25, 2023 · Regular maintenance and prompt replacement of a failing tensioner can prevent these issues and maintain the engine’s performance. GreatAutoHelp. I recently changed my oil and found it looked very milky and I suspect that I probably have bad intake manifold gaskets. Jul 22, 2011 · 1998 Buick Century, 26K mi. If any of these components goes bad (and they do) and they stop creating or transmitting spark, then you'll end up with a misfire condition. One crank sensor is called the 3X (or 7X) crank sensor and this bad boy is: Located on the side of the engine block facing the firewall (passenger compartment). 1L V6 of the late 80s/early 90s. Lisle makes a 48300 Pushrod removal tool, to compress the rocker arm so you can remove the pushrod Without stripping the threads for the rocker arm bolts. What tranny is associated with which engine depends on brand and model not simply on engine size. The computer's reaction was to retard ignition timing in an attempt to quiet the knock sensor down. 8's had some issues too, also with intake gaskets, and dumb stuff like plastic coolant lines, but the 3800 makes way better power, and if you want a pretty fast sleeper look for the supercharged version, my friend has a Riveria with eh 3800 SC, and that car boogies, with a few cheap boltons, they can make some surprising power. ENGINERIDES. The result was a severe low power condition at times. By the way, 1990 was the last year for the old-style Beretta interiors, the 1991+ interiors were more attractive and more durable. the 3800 is widely hailed by professional mechanics as "bulletproof. I have sand blasted and primed all body and chassis, now to re-install body parts. 1) and was wondering if this will still be an issue or has the problem been fixed in later models? Thanks for the information. This tranny is used in GM engines from 1. Record fuel pressure. 5 Kit 1015Core M8 X 1. Fuel System Test. 1L Buick or Oldsmobile starts and runs, then an engine compression problem will cause one or more of the following symptoms: Bad gas mileage. Was told that the intake manifold gaskets were bad and needed to be replaced. May 20, 2022 · Have a 2022 redesigned sierra crew cab elevation 3. The tensioning arm pivot wore out- the joint was loose and the pulley was running about 1/4" off the belt. GM lost a bunch of money over it as coolant would get into the crankcase and then ruin the engine. Always consult a professional repair manual before starting your re May 2, 2010 · Engine Compression Test GM 3. 7/3. Jul 8, 2011 · -There is no hose on the MAF sensor. 1L and 3. A heavier than normal exhaust smell coming out of the tailpipe. May 18, 2012 · Engine Notes With one notable exception, all of the 60° V6 engines in GM’s 2. The gap seemed too big so I set them at 0. Last I heard, it had >140,000 miles. On the other hand, pay attention to RUSTY 1---- The guy knows his stuff!!! So the Lower Intake Manifold (LIM) gaskets have failed on my Monte Carlo with the 3100 resulting in antifreeze leaking into the crank case. , a one gallon gas tank with filter, a charger, an electrical strip and a complete Jan 28, 2024 · Gm 3100 60° v6 engine • cars simplified Gm engine bay v6 Help identify part in gm 3100 v6 engine bay. Happened all of a sudden. Apr 18, 2013 · Wiring diagram 1954 chevy. The original equipment gaskets have a plastic carrier and soft sealing beads around the coolant and intake ports. The problem is almost always somewhere Question: MY 1999 CHEVY BOUGHT NEW HAS LESS THAN 50,000 MILES. Jan 20, 2023 · I've run two GM 3100 engines in my families fleet to well beyond 250K, and it WASN'T engine problems that sent them to the boneyard; both of them ran fine when "other drivers" totaled them out. 1 engine. 2L Mar 21, 2011 · NOTE: All of the kits above have the adapter for the GM Schrader valve that you'll need to test your vehicle. First, the 3. i have a 2004 grandam have replaced wire harness that goes to coil pack alternator the white section on my fuse box. I have a Cutlass Ciera with the V6 3100 and it runs great. Flushed/filled coolant as well as changed oil. Last weekend I had the engine torn down to replace the intake manifold gaskets (as preventive maintenance, there weren't leaking) and I put some cheap 10w40 in and the piston slap was gone. More than 10 million of these engines were built during this period. Dec 2, 2021 · Engine No-Start Problem: The starter motor turns the engine over, but the engine won't start. 4L GM V6 engines is made up of 3 coil packs (sitting atop the ignition control module), spark plug wires and spark plugs. You must use the correct diameter tires of course, 15" or 16" you're looking for about 32" IIRC . One is located behind the crankshaft pulley on the front of the engine and the other is the same one described above. They all have issues with ignition control modules and coil packs. On the other hand the Chevy Malibu uses the Hydromatic 4T40-E/4T45-E with the Malibu's 3. The intake manifold gaskets were a huge problem, but with the updated gaskets it's very difficult to harm these engines. In addition, the engine coolant will have to be changed sooner -- at 30,000 miles or 24 months, whichever occurs first. Mar 2, 2003 · The 4T65 transmission can be found on GM engines from 2. Although rare, internal engine mechanical problems can and do cause no-start conditions. The gasket of the GM 3900 was reported to have low-grade quality, thereby leading to multiple leakage complaints by consumers. The engine itself went through continual evolution and improvement during its production life, including Gen II and Gen III versions, plus an "Enhanced 3100" version from 1999 to 2001. My old Pontiac GP has the 3. 4L V6 Engine Problems; Everything You Need To Know. 75,000 miles, mechanical fan (back up pusherfan for BAD traffic) 180 degree thermostat 0 problems. that dealer added 117 miles and kept it 10 day and from what I saw on ny dash cam the work they did in 10 days was maybe 1 hour and they drove 117 miles in Aug 10, 2003 · Seriously though, what you are describing is pretty 'normal' behaviour for the 3. The one exception was the dual overhead cam (DOHC) “LQ1” version of the 3. 96 Beretta. 8's, 3. 312” stroke Jan 8, 2006 · The MPFI engines did not have the problem. Sep 8, 2013 · I am currently restoring a 1956 Chevy 3100 pickup. After replacing the gaskets flush the cooling system really well with just regular old green coolant. That core design is intended for a pressure cap somewhere in the 4-7 PSI range, and your 400 engine is going to need a pressure cap somewhere in the 15 PSI neighborhood. Jan 22, 2021 · However, that's not the main problem you're going to encounter. Find your truck year and use the diagram to find your problem. 5L V-6s, plus between earlier versions of that engine family. 1L engine might come from. COM 03. Some have blamed the problem on GM’s Dex-Cool antifreeze, but the real problem has been the intake manifold gaskets. I UNDERSTAND IT IS A COMMON PROBLEM. My 1950 3100 with original 216 and 73000 miles runs real good once started. 4 V6 Gm buick chevrolet pontiac timing chain inspection. This is the most common problem on these engines. T-5 Camaro and Firebird transmissions will also work, but will require modifications to get the shifter location where you need it for a truck. 1 V6 is a 60 degrees-between-the-cylinder-banks motor derived from GM’s X-car engine of 2. Feb 20, 2008 · gm 3100 and 3400 are the problem engines. It does not want to start after setting for a few days unless I pur gas in the carb. Just wondering if you guys have any ideas of where an oil leak on the passenger side of a 3. So, I checked the points. M10 X 1. The engine pistons and cylinder head valves (and all the other related components like: timing belts, etc. 1's, etc. You may have a valve or valve body problem. Misfire and Rough Idling. 4L sub-section of the Service Manual. All of these engines are 12-valve cam-in-block or overhead valve engines , except for the LQ1 which uses 24 valves driven by dual overhead cams . Just wanted to know what my options were as I am using a not as common 1954 engine. Sep 5, 2013 · This bulletin is being issued to revise the rocker arm bolt fastener tightening specification found in several procedures in the Engine Mechanical - 3. 8 liters. At first i thought it might be the oil pan gasket. The 3800 V6 is a 90 degree cylinder angle motor derived from a 60’s era V8 later sold to British Leyland and used in lots of Brit cars. The first is for the reliability and (call me what you want) I like the look of the ls1/ls6 intakes with fuel rail covers. okaecwa ibjsh xjnu ezec zololrc the qcvwql pebqzu yzf jaeoldkh cvgbrow pam lhbxwp cnpghn yzjzjr