Question about 2007 Cadillac CTS 3.6L
I need to change the lower intake manifold gasket of my pontiac grand prix GTP 1999, do I have to change the Supercharger gasket and what difference makes to install a thinner and a thicker gasket on the SC.
Is there any place where I can see the procedure.
Technically you are supposed to (change the s/c gasket) but if your careful and don't tear it, you don't really need to.
Be sure to inspect the yellow coolant o-rings.
The gasket thickness isn't going to matter at all on the supercharger gasket.
Perfect oportunity to install that Intercooler you always wanted ;)
Posted on Jun 24, 2009
SOURCE: 95 buick riviera supercharger
you can not put a regular 3800 intake in place of the 3800 super charged engine,the compression ratio is lower than the regular 3800 engine.......!
Posted on Feb 16, 2009
sometimes they just go out....lack of lubrication can cause problems but more then likely it is just going out. Try taking the air cleaner off and reaching in where the fins are and you will see a nut on the end, grab the nut and see if there is any play moving it up and down. If there is any play then the bearing is going out.
Posted on Dec 11, 2009
The rattle you are/were hearing is typical on the Eaton blowers. After they get some miles on them, the coupler wears out and the holes become ob-longed or out of round which causes the rattle you are hearing.
Usually at idle you can hear it very clearly.
I have changed a few, and they are pretty simple to change. Just take off the supercharger belt, then you may have to remove your alternator bracket, depends on which years, drain the supercharger oil with a spray bottle sprayer (it does stink badly) then just remove the 10 or so bolts that hold the snout to the housing. Remember to keep track of where they go, some are different lengths.
You may have to use a rubber mallet, or your hand to hit the snout around to break the gaskets loose. Pull off the old black hockey puck looking thing (coupler) clean out the snout, attach new coupler, then reassemble and put new supercharger oil back in, and your rattle will be gone, at least for another 100k miles.
Best place to get a coupler is at,
Costs about 30, plus the few bottles of oil for the supercharger.
Posted on Jan 04, 2010
The oil should be changed every 30K miles according to the Pontiac manual.
However, it is best to change it sooner or whenever you don't know when the last change was done.
Posted on Jan 09, 2010
The thermostat housing is located in the upper radiator hose. You will see a metal elbow secured by two bolts into what I remember is the upper intake manifold...don't quote me on that but you will see it regardless of whatever I call it. Anyways, GM decided it was a good idea to put stainless steel bolts in there but that makes it easy to strip the threads in the bolt hole so I think it's best when you put your wrench on the bolt to just tap on the handle till you vibrate it loose, then turn it.
When you pull off the housing you'll lose a little coolant and it will create an air pocket which we'll address. It's a 50/50 chance that the thermostat housing gasket will either stick to the housing or the engine...it may be torn, cracked or flaking in either case clean both contact surfaces before you replace the gasket. I recommend an oil impregnated poly material gasket.
Note the position of the thermostat in the hole and place the new one in as such.
I recommend a 180 degree thermostat...stock is 195 but the GTP runs better with the 180.
Put on gasket and reinstall the hose/housing assembly, alternate from one bolt to the other so the housing mates flat and cannot cause a leak.
Next, fill the coolant overflow bottle to the "HOT" mark. If the bottle is dirty and hard to see just put a light on top of the bottle...GM didn't mark it very well so if it's not squeaky clean you can hardly see a damn thing.
*IMPORTANT** if your car still has Dexcool in it, DUMP IT. It will eventually destroy the motor.
If not...continue on. Start the car. Go back to the thermostat housing and place a rag on top of, and twist the peacock valve on top of it to let the air out until it starts to get coolant on the rag. Done.
Posted on Feb 27, 2010
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