2004 Pontiac Grand Prix Head Gasket Leak?? Or intake manifold leak??
I was hoping someone could help me identify this problem i have. Antifreeze leaks to the top of the engine but the oil looks fine. Can anyone give me advice on this video?? It has over 250000 miles on it but has not lost any power since the day i bought it new.
2000 Grand Prix GT 3800 Series 2 Head Gasket Problem.
Ok update: The problem was a cracked lower intake manifold. Surprisingly
the upper intake was fine. The EGR passage wasnt in bad shape at all. It
was still sealed. But the lower intake was sucking oil and water in the
3800 Lower Intake fix
Just some nuggets of wisdom for fixing a leaking lower intake gasket on a
GM 3.8L Series 2 V6.
GM 3800 Series II Supercharged Intake Manifold Leaks
This is an all too common problem with supercharged 3800 series engines.
GM used a plastic lower intake manifold gasket that would break down over
time causing coolant to leak into the oil. If left unfixed, it would get
worse to the point where your engine starts knocking from poor lubrication.
Your oil will look really milky as a result. This engine had only 60k
miles on it when I replaced these gaskets and its a good thing I did. GM
makes a newer revision aluminum gasket set that fixes this problem. You
can get those from a GM dealer, they are the set that has locating pins,
the stock ones did not, but these do fit fine.
How to Test Head Gasket
** Please see my other videos on this topic* Thx!
This video is intended for those who would like to know how to confirm a
damaged head gasket on a vehicle prior to making the decision to invest a
lot of money for repair. My apologies for the camera focus- next video I
will pay closer attention, but the information needed is viewable. Further
research should be done on the risks of overheating to the engine block and
such. This video is meant to simply show a 'how to' on the test method I
used quite often when professionally working on vehicles, the results of
which are based on chemistry and industry-standards of the time (1990's).
I hope you find this video useful. RI.
Impala - Valve Cover Gasket Replacement (Front) 3800 Series II
This is how to replace the Front Valve Cover Gasket on the 2002 Chevy
Impala 3.8L (3800 Series II)
This is a fairly simple job, to do this you will need the following Tools:
1. Socket & Ratchet set including 10mm, 13mm, and 15mm
2. Valve Cover Gasket Replacement by Felpro ( Part Number: VS50080R) $14.99
3. RTV Black by Permatex (Part Number: 82180) (not necessary but nice to
4. Torque Wrench that reads Inch/Pounds NOT Foot pounds. Harbor Freight has
them for ($10-$15) (Harbor Freight Tools Part #2696) The one at harbor
freight is 1/4 drive so if you have a 3/8 inch socket set get a universal
adapter set for about $4.
5. Alcohol, acetone, or brake parts cleaner
6. Toothbrush to scrub the valve cover where the gasket will sit
This whole job can be done for less than $50 including the cost of the
torque wrench. I was quoted about $250 just to change the front valve cover
gasket by a local shop.
How To Replace The Head Gasket and Intake Manifold Gaskets On A GM 3800 Engine
In this walkthrough I replace the head gaskets, upper intake manifold (UIM)
gaskets, and lower intake manifold (LIM) gaskets on a 1997 pontiac
bonneville. These steps will be identical for almost any GM 3800 / 3400 /
3100 series II motor.
If you have any questions feel free to post them on the video and I'll do
my best to try to help!
Here is a link to the the text walkthrough I used as a guide for making
Also here's a list of torque specs for most of the motor:
Camshaft Bolt: 74 ft/lbs + 90 degrees angle torque
Camshaft thrust plate: 132 in/lbs (T30 torx)
Front cover bolts: 15 ft/lbs + 40 degrees angle torque
Oil pan bolts: 125 in/lbs
Crank sensor nuts: 18 ft/lbs
Camshaft sensor bolts 48 in/lbs
Lifter hold-downs: 22 ft/lbs
Rocker bolts: 11 ft/lbs(132in/lbs) + 90 degrees angle torque
Lower intake bolts: 132 in/lbs
Supercharger bolts: 17ft/lbs
Crank Bolt: 111 ft/lbs + 76 degrees angle torque up to 10/98
111 ft/lbs +114 degrees angle torque 10/98 and up
Cylinder head bolts: 37 ft/lbs + 130 degrees + 30 degrees up to 10/98
37 ft/lbs + 120 degrees
Flywheel/flexplate bolts: 132 in/lbs + 50 degrees
Exhaust manifolds: stud/nuts 132
Nuts 156 in/lbs
Oil filter adapter to timing cover: 22 ft/lbs 97 earlier
132 in/lbs + 50 degrees 97 and later Oil pump
Cover to timing cover: 98 in/lbs
Pick up tube and screen: 132 in/lbs
Valve cover bolts: 89 in/lbs
Tstat bolts: 21 ft/lbs
Water Pump: 132 in/lbs + 80 degrees
Water pump pulley: 115 in/lbs
Throttle body: 84-89 in/lbs
Fuel rail nuts: 75-84 in/lbs
GM 3.8 Intake Manifold replacement. Removal the fast way WITH NOTES
this is the "Flat Rate " way to do a 3.8 liter upper and lower intake
manifold set. as you see it is not necessary to take off he serp belt,
alternator or tensioner assembly to remove the lower manifold. I recomend
having someone help when it is time to reinstall the manifold because it
can be tricky to lien up the coolant elbow and not mess up the lower
gaskets when reinstalling. Note that it is recomended to disconnect the
negative battery cable when doing any major repairs. This video is just to
show some guys that said that a lower manifold cant be pulled in way less
than 20 minutes, I know that I went over that , but I had some stuborn
injectors and Im a little out of practice. If you are going to do this
yourself and you are not a professional I recomend that you follow the
procedure in a service manual
Easy fix for blown head gasket - BAR'S LEAKS HEAD GASKET & COOLING SEALANT
In my opinion this product worked great for me. Does this product work in
your case? I don't know. But this video is just to tell you from my
experience that it worked in my car. The do it yourself head gasket repair
in a bottle, BAR'S LEAKS Head Gasket & Cooling Sealant HG-1 professional
carbon fiber block seal. This stuff saved me lots of money! My car had a
bad overheating problem when driving uphill and on freeways. I've come to
conclude that it's a leaky head gasket that's leaking Exhaust gas into the radiator causing the
overheat. I didn't want to go to a repair shop because I know it's going to
cost thousands to fix. I found this bottle of Bar's Leaks Head Gasket &
Cooling Sealant at my local auto parts store and decided to give it a try.
Followed the instructions on the bottle and now I'm very pleased that the
product actually worked. My car does not overheat anymore!
1) Install only in a cold engine. Shake well.
Pour Bar's Leaks HEAD GASKET &
COOLING SEALANT directly into radiator
per the dosage chart. Fill radiator and
overflow tank to proper level and reinstall
TIP: If direct access to radiator is not
available and if overflow tank is pressurized,
you can install in tank.
2) Turn heater on hot and fan on high. Run
engine until thermostat opens or normal
operating temperature is reached. Turn
vehicle off and allow engine to cool.
3) Top off radiator and run engine at high idle
(approximately 1200 RPM's for vehicles with
a tachometer) for 15 minutes. Turn vehicle
off and allow engine to cool.
4) Top off radiator and leave Bar's Leaks HEAD
GASKET & COOLING SEALANT in system
for continued protection. Drive vehicle as
Bar's Leaks Professional Carbon Fiber Block Seal Head Gasket & Cooling
Sealant is the strongest antifreeze compatible repair on the market. A key
benefit of this product is the material stays in the cooling system to seal
up any future minor cooling system leaks the vehicle might have.
* This is my product review. I am not affiliated with Bar's Leaks. I'm just
a consumer that likes to use their products.
How To Tell If Your Head Gasket Is Blown
Scotty Kilmer, mechanic for the last 46 years, shows how to check if your
engine head gasket is really blown. And, If you like my car help, be sure
to watch my live car talk show every Saturday morning at 10 AM CST on
YouTube. I answer your car questions LIVE there. Just check it out at
eature=c4-overview . And remember, every TUESDAY I upload a new video, so
don't miss them.