00 gtp 3800 heads cracking problems

The oem intake manifold gasket tends to deteriorate after 60,000 or so miles in the area that seals. Blown head gasket repair procedure bluedevil products. Plan to do my girlfriends car tomorrow and have pictures and a short write up to go along with everything. The 1999 pontiac grand prix has 21 problems reported for leaking coolant, cracked intake manifold gasket. Why is there vacuum at the oil filler on my 1999 3800 v6. The engine runs well overall so im holding out a hope that the heads are. Please allow 23 weeks for machining and assembly when ordering. Choose top quality brands ac delco, apex, api, diy solutions, dnj rock, felpro, felpro, genuine, mahle, replacement, vr gaskets. Select a color for the 3800 series iii section and select the same or different color for the supercharged section. Intense stage 3 cnc cylinder heads are built to order. Ive change the resistor and checked all hvac fuses.

Cracked front sway bar another common problem, they usually crack right where they connect to the control. Similarly, check the block for flatness, cracks or other problems that would cause things to. Please refer to the core return instructions included with the part or contact customer service for more details. The engine, originally designed and manufactured in the united states, was also produced in later versions in. Vinyl decals designed to cover the top of the 3800 series iii and supercharged lettering embossed on the factory engine cover. Intense stage 2 3800 cylinder heads pair intense racing. Dec 22, 2008 the gtp is quicker, cheaper to own and maintain, gets better gas mileage, and i think is a much better looking car. We consider a wide range of things when gathering our quarter mile and zero to sixty sec, including the skill level of the driver, the source of the information, and the specifics related to pontiac cars.

See more of gm 3800 service tips, techniques, and advice on facebook. Cylinder head bolts 0609 buick chevrolet pontiac saturn 3. Well all, here it goes i have a 1997 grand prix with the 3800 series 2. Pontiac grand prix heads up display used car parts. I just kept clearing it because it barely misfired and didnt cause a problem. Starting your car, letting it idle and listening is a good way to pick up many different warning signs true, all these symptoms can have many different causes. A few questions about 3800 head gasket pennocks fiero forum. Is there a typical mileage range that the gm 3800 series ii intake failure happens. Pontiac grand prix questions if it is a head gasket wouldnt the car.

Hello and welcome to the new l67l32 faq, this faq is currently under construction it will have mutiple updates over the next month in hopes to make it the best l67l32 faq in existance. Jul 29, 20 under hood 3800 supercharged v6 in 98 buick riviera duration. The 2004 pontiac grand prix gtp bolt pattern is 5115 mm. It is effectively a lowerdeck version of the 3800, with a smaller bore and stroke of 3. Recently my hud has gone on out, i dont have an owners manual to troubleshoot with. Apr 03, 2011 i have 2002 pontiac grand prix gtp with 3800 sc have bad cylinder 1 misfire i changed plugs swapped wires swapped coils swapped fuel injectors replaced ignition module and did a compression test cyl1 and cyl3 were same swapped fuel pressure reg after all that misfire is still there only thing i noticed was my fuel pressure is normally 58 lbs now is 50 and flutters could this be pcm i dont. My hud display on my 2005 grand prix gtp is not working. Like the 3800, it used a cast iron block and heads, push rods, and hydraulic lifters. The block is made of cast iron and all use twovalveper cylinder iron heads. If your looking at your engine from the front of your car. Engineengine for 2002 pontiac grand prix select engine part.

This is less than 6 percent of the 25 million examples of the v6 installed in gm vehicles between 1975 and 2008. Grand prix gt, had that engine and never once had a single problem. The 9703 wbody buyers guide common problems grand prix. The gtp is quicker, cheaper to own and maintain, gets better gas mileage, and i think is a much better looking car. Pontiac grand prix questions we changed the radiator,water. I used a heavy coat of copper spray on both sides of the felpro gasket as well as the heads and block. Is there a simple solution to try or will it need replaced more than likely. The buick v6, popularly referred to as the 3800, originally 198 cu in 3.

For the latest pontiac zero to 60 and quarter mile stats, we have taken the time to gather the most accurate level of information possible. It looks like my 03 buick with the nonsupercharged 3800 72k. Learn about this problem, why it occurs, and how to fix it. Make sure to get the heads milledflattened for best results. The heads have also been leaking oil near the headers and i have also had an external coolant leak from somewhere near the heads. A couple days ago i was getting on the gas pretty good and then the p0300 code came back. As the engine evolved into the series i, a gerotor oil pump and roller lifters were added in 86, oncenter bores were added in 88 along with the balance shaft, and a onepiece rear seal was introduced in 90. The tensioner elbow was cracked and leaking externally, but these. The oem intake manifold gasket tends to deteriorate after 60,000 or so miles in the area that seals the cylinder head coolant passage to the. A 3800 series ii l67 supercharged engine in a 1998 buick regal gs. Random multiple cylinder misfire this code has been coming on maybe once every couple of months. Pull the old heads, check the tops of the pistons for damage, and replace the heads with rebuilt i.

Restore its vitality and keep it going for many more miles by installing a new pontiac grand prix engine from autozone. The car was very sluggish, loud, kept loosing speed until i had it pulled to the shoulder were it shut down and i had to coast to a stop. Gm engineers realized that the 3800 would still need a balance shaft to make it suitable for the upscale fwd cars later on. A few weeks ago while driving home from work on the freeway i had some major engine problems. I was just wondering what an average replacement cost range would be for a head gasket replacement would be from an auto repair service center would be for the vehicle listed above. I have had this problem as well on my 1999 grand prix. Head studs with teflon tape on the threads going into the block. I have a list of things that are wrong with it that may need mentioned because im starting to see a trend on several forums. This means there are 5 lugs and the diameter of the circle that the lugs make up measures 115 mm or 4.

This is a library of tips, techniques and advice for servicing your gm 3800. The l67 is the supercharged version of the series ii l36 and appeared in 1996, one year after the normally aspirated version. You can receive a refund by returning a suitable old core. This premium product is the best way to go for those looking for the highest quality replacement that offers supreme levels of quality, performance. The block is made of cast iron and all use twovalvepercylinder iron heads, actuated by pushrods. The 2006 pontiac g6 has 1 problems reported for head gaskets leaking. Thanks to info here, ive kept an eye on the dexcool coolant since i bought the car in late 07. Diagnose buick 3800 engine common problems with the 3800 engine. Thats about the maximum you can run without experiencing handling and steering problems.

How could i tell if there is a bent connecting rod. They should be used in conjunction with the more aggressive camshaft profiles such as our intense stage 2 blower cam, intense stage 2 turbo cam, or intense stage 2 normally aspirated cam, and boost levels ranging from 10 to 20 psi. A quantity of 1 is for 1 3800 series iii decal and 1 v6 decal. Gm 24505811 same pn as 3800 l36 gt and l67 gtp grand prix 3800 cylinder heads. Intake manifold gasket may leak coolant or engine oil the intake manifold gasket may develop and external engine oil or coolant leak. I brought them home and cleaned them up only to find that both heads were cracked between the intake and exhaust valve on one of the cylinders specifically the exact same place in the casting on both. When they fail on the road, they crack open and you can lose all the engine oil in.

Gm used smaller valvespring pilot seats and the heads were prone to cracking at these locations. The core charge will be fully refunded after your original cylinder heads are returned, disassembled, cleaned and inspected. Jun 12, 2017 starting your car, letting it idle and listening is a good way to pick up many different warning signs true, all these symptoms can have many different causes. Pontiac grand prix questions we changed the radiator. Also each new post is a new addition to faq this way its more broken up into what your looking. It is a shame that a great engine design was spoiled with this design flaw. To get a close measurement of your 5 lug bolt pattern without a bolt pattern tool you should measure from the center of one lug to the outer edge of the lug furthest. I went to the local upull it a little bit ago, and i found 2 3800 supercharged heads already off the car.

Pontiac grand prix gtp engine misfire due to corrosion. These 3800 series ii cylinder heads are now available for both l36 and l67 engines. Customer responsible for return shipping on core items. Under hood 3800 supercharged v6 in 98 buick riviera duration. I have 2002 pontiac grand prix gtp with 3800 sc have bad. Intake manifold gasket may leak coolant or engine oil the intake manifold gasket may. It looks like my 03 buick with the nonsupercharged 3800 72k miles might be due for surgery.

I have a 1999 pontiac grand prix gtp supercharged with 240. Replace any wires that are cracked, fit loosely or are damaged. The block is made of cast iron and all use twovalvepercylinder iron heads. Feb 15, 2008 gm has been plagued with head problems on a lot of engines, including the 3800. Feb 14, 2016 02 pontiac gtp having fuel pump problems caused not 2 start. Keep reading to find out how you can detect a leak and confirm whether it is the cause. I am asking because my inlaws are looking at used cars and there are a lot of these engines out there. The stealth mode works but the display in the windshield isnt showing. Gm has been plagued with head problems on a lot of engines, including the 3800.

Two uoas have shown a hint here and here of higher sodium, but no indicator of a leak, and the. Restrictive cylinder heads can be the obstacle to more power from your chevy 3800. Pontiac grand prix engine supercharged and nimble, your grand prix is a fast, fun and stylish car you love to drive. On a related note, i see a lot of gm 3800 series ii equipped cars on ebay and craigslist with trashed engines most likely due to this problem. Oil pan leaks another common problem with the 3800 engine. We have the largest selection of pontiac grand prix heads up display parts at discount prices.

Pontiac g6 power train 2006 pontiac g6 problems with. The porting in our performance versions provide the increased airflow you need. The buick 3800 v6 is a fairly reliable engine, but coolant leaks on the series ii 3800 engines with the plastic intake manifold have been a problem. Remember to lube the new orings with clean motor oil before installing them so they will slide and not catch and tear.

Find a quality pontiac grand prix heads up display and other used car parts from the top auto salvage yards. Still holding strong 11 months later with lots of boost. Heads up display hud may look dim or may not function at all gtp and. May 04, 2010 my hud display on my 2005 grand prix gtp is not working. Gm 3800 service tips, techniques, and advice posts facebook. Because a 1999 pontiac grand prix gtp is a front wheel driver i would not recommend more than 300320 horsepower. If you have any input that you would like to see addressed in the faq please post in the faq thread in this forum. The gm 3800 series ii engine, introduced in 1995, is quite a different engine from its predecessor, the series i engine. Pontiac grand prix gtp corrosion at ignition coil towers 8 reports. This is located under the icm, and is usually anchored to a stud in the front head. Buy a 2001 pontiac grand prix head gasket at discount prices. In the last few pictures i posted you can see some pictures of the head gaskets, they are in pretty bad condition from what i can tell. It sounds like you shut it down before the temp got to where it could damage the rest of the engine, so i would do the following. Learn how easy and inexpensive it is to seal your blown head gasket leak by yourself.