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.
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
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.
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.
Engine Coolant Thermostat replacement 3800 V6 engine - Pontiac Bonneville P0128 OBD II Code repair
My check engine light came on in the fall of '09 so I had the code pulled.
It was P0128- Coolant Thermostat (Coolant Temperature Below Thermostat
Regulating Temperature). I decided to check and replace the thermostat. It
was the problem and has been fine since. Overall the job took about 45 min
to 1 hour including draining, warming the engine, and refilling the cooling
system. It was a pretty easy fix. This problem causes the engine to run too
cool because the thermostat is stuck open, causing more coolant to go
through the radiator than necessary. Ignoring this problem causes the fuel
mixture to be too rich, which will cause poor fuel economy.
How To Tell If Your Head Gasket Is Blown
Scotty Kilmer, mechanic for the last 42 years, shows how to check if your
engine head gasket is really blown. Visit Scottykilmer.com for free
answers to all your car questions.
2005 Grand Prix GTP basic MODS ZZP
05 gtp gen 5 blower, cold air intake, 160" tstat, colder plugs, zzp spark
plug wires, 1.9 roller rocker arms with #90 valve springs, zzp stainless
steal headers, 3" down pipe no cat, 3.4 pulley, zzp pcm 1.0 custom tune,
coming soon re-tuned on Dyno at ZZP, video to come!!!
future mods will be brakes, change valve covers and gasgets have a sligh
oil leak. subscribe and stay tuned!!!
GM 3800 Series II Leak
Removed upper intake manifold and was surprised to see...update: Lower
intake manifold had previously been replaced with aluminum gasket. This
was found with 102,000 miles on engine :(. Upper intake plenum was damaged
Coolant leak fixed with STOP LEAK (Bars Leaks) on a Ford, Lincoln 4.6l engine.
Is coolant leaking around the manifold on your 4.6L Ford, Lincoln or
Mercury engine? I fixed mine with Bars Leaks "liquid copper". Two
different mechanics from TWO shops told me I needed a new intake manifold.
Be skeptical. DISCLAIMER: This may not work for every car in every case.
Read & follow all directions on the bottle.