Pontiac Grand Prix Forums : Grandprix

K so I got the car running but it jumps and stumbles and bogs out on acceleration but not every time (Usually around 3000 rpm). The car bogs out and makes a funny noise every time the supercharger kicks in therefore iI get no boost....I drive it around the corner and it stalls out and will not restart unless it cools down.. I also have a slow leak at the LIM but I just replaced the Gasket but I did not know to put the rtv in all four corners and thats where it looks like its coming from. Also the coolant tubes dont seem to be very hard when the car is running...So its running but like crap would that be because of the coolant leak at the LIM ...Im thinkin its something else

Any ideas guys???

idk but drain the oil and see if there is coolent in it. if so dont drive the car. either way you probably need to redo the gaskets (take your time) and flush the motor oil out a few times with cheap oil.

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white 04 comg G gtp. wizair, pacesetters, slp 1.8 rr
its slow.

RTV in the corners of the LIM are there to seal the block end seal to the actual lim/head gasket. All it does is keep oil from seeping out of the valley area. This will probably seep and cause you to want to redo the gaskets, but not cause an engine running issue.

Did you burp the cooling system? That is a common issue when you mention the hoses are not firm. But that takes some running time.

Check your vacuum connections. Did you replace all the gaskets and clean all the surfaces well?

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Ya Bill I cleaned the crap out of the surfaces and replaced the LIM UIM and TB Gaskets and I left the cap off the rad while running and I let the air out of the thermostat screw.. As far as the RTV stuff goes Im not leaking oil but it looks like im leaking coolant from the LIM its a small drip??? Should coolant really be coming from the LIM at all? As far as the stuttering it sounds like a vac line, I have the diagram and am going to check that today....

Anyone else??????

Did you use a sealant on the LIM bolts?

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