#Radiator overflow tank pontiac grand prix install

â€ Install the lower intake manifold seals (1). Edited by 3800_fix on Thursday 22nd of February 2018 01:41:17 PM- Edited by 3800_fix on Thursday 22nd of February 2018 01:41:45 PM Remove intake manifold bolts, manifold, gaskets and seals. I rented/free a torque wrench from Auto Zone.

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In this video I show the clean-up process involved when you replace the lower intake manifold gask The posts on this page explain the failure of the lower intake manifold (LIM) gaskets in the GM 3800 V6 engine, and show you how to identify it and repair it.

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The Best Automotive Repair/Business software for the Pros The only loose end is that the expansion tank hose is leaking - need to put a hose clamp on it and/or inspect it for a hole. Labor costs are estimated between $234 and $295 while parts are priced between $545 and $545. 8L Intake Manifold Replacement Instructions Part 2.

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They can also be installed as preventive maintenance to eliminate the need to replace th GM 3800 Series 2 Upper Intake Manifold and Lower Intake Manifold Gasket Replacement. 元6 3800 Series II Non-supercharged Engine Diagnosis of oil leaks on a GM 3800 V6- How to replace GM 3800 V6 intake manifold gaskets -Part 1-PA 1998 chevy astro 4. 2: Intake manifold bolt tightening sequence-1988-91 4. Also replaced the upper plenum with a new Dorman one. Some years have different sized 'stove pipe' tubes on the lower intake manifold and you might have to swap lower intakes to mate with the L26 metal intake. It eliminates the need to replace the lower intake when doing a repair for a leaking upper plastic plenum. This increases the flow of the port while … DIY video on how to replace the lower intake manifold gasket on a 2005 Pontiac Grand Prix. 8L Lower Intake Manifold Removed- Explanation Of The Valve … I did a search on Dorman intake manifolds and found that Dorman OE Repalcements is offering the upgraded intake manifolds for the 3800 GM V6 95> and the Ford modular 4. I definitely believe the coolant system is getting overpressurized but locating the problem will be interesting and/or costly.Gm 3800 lower intake manifold. He is going to check the heater later today. Has the heater been working when there is coolant? A clogged core could cause troubles like this Good luck! Please correct me if I'm wrong. If the gaskets look fine then you'd want to check for cracks/warpage, not fun. When you open it up the problem will usually be pretty easy to see when a gasket is faulty.

With the radiator cap off many times a compression test will put bubbles into the coolant also, sure sign of leakage.īy this point I would expect the problem to either be obvious or gaskets need to be changed. It may be that only one bank is causing problems (although doing both sides is a good idea). Any variance of more than 10% is indicative of problems. This will help locate where the failure is. Many external leaks can be repaired without engine work.ģ - Record the compression for each cylinder. Would be best to do with a pressure indicating cap or gauge installed somewhere. May need to run it long enough to get fully hot before any appear. Refill.Ģ - Use UV Dye in the cooling system to locate any external leaks. In any case I suggest driving it as little as possible until repaired properly.ġ - Drain the oil into a pan. The hot gasses will pressurize the coolant system too high and it may come out through the normal tank/cap or by working its way into the oil (bad) or it gets burned and goes out the exhaust (not so bad). In general this type of problem is due to exhaust getting into the coolant, whether a bad/wrong/worn gasket or warped/cracked head/block.