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.
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
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.
PART 1 of 3 How To Install Replace Lower Intake Manifold Gaskets GM 3.4L V6
If you are losing Coolant but don't know where it is going check to see if
your oil looks lighter brown and foamy if so you are getting coolant or
antifreeze in your oil and this can be one of the causes. This video is
applicable to the Pontiac Grand Am, model years 1999-2005.
Best Head Gasket Sealer For Headgasket Leaks
ks/ (visit my site for more tips)
Did your mechanic tell you your car has a headgasket leak? I get TONS of
questions like this everyday and many of them are NOT head gasket leaks. I
made this video to help you determine if you DO or DO NOT have an internal
The FIRST, FIRST, FIRST thing you need to do is get a cooling system
pressure test. This fast and cheap test will help you determine if you have
an internal or external coolant leak.
If you are absolutely sure there are no external leaks, and the radiator is
not restricted and the electric radiator cooling fans are working, then try
this awesome sealer.
The product is called Engine Block Sealer, made by K&W. They have the old
version in a hard metal can and their new and "improved" version in a green
plastic bottle called Nano Technology. Both seem to work just fine.
I do not personally use the product as the instructions on the can say
(been using it my way for years with a 75-80% success rate and its much
My instructions for using K&W Block Sealer are:
1. Drain out all coolant from radiator as you possibly can.
2. Get a bucket and mix up the block sealer with tap water
3. Pour contents of the bucket into the radiator, top off with tap water
4. Then put 500 miles on the car as soon as you can
5. After 500 miles drain out the mix and reinstall coolant and water as
The seal should be permanent
You will NOT have boil over or freeze protection during this time period so
please keep the engine from freezing and overheating.
And no, I do not remove the spark plugs or the thermostat as the can says..
Just the steps above.
Hope this helps, visit my sites for more cool tips and information
Fixing A Common Engine Oil Leak
Scotty Kilmer, mechanic for the last 46 years, shows how you can fix a very
common oil leak that many engines get as they age. If you find your spark
plugs are covered in oil, you need to watch this video and see how easy it
can be to fix yourself. 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.
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.
3800 Lower Intake fix
Just some nuggets of wisdom for fixing a leaking lower intake gasket on a
GM 3.8L Series 2 V6.