1997 grand prix gt

i just put a new engine in my car and i still have some problems, like when i put on the a/c my car starts to feel like its about to cut off, like when im at the red light than i take off it jerks. so im askin anybody what they think mebe the problem. and one more thang how do i change my motor mounts. u can email me at [email protected] thanks:banghead: :runaround:

motor mounts are easy to do... one at a time with a jack and a piece of wood between the jack and oil pan to support the engine. then simply unbolt one of the mounts and replace it. I assume you have the WHOLE assembly and not just the rubber inserts... as for the a/c stumble... may be a whole mess of different things, im not sure but the a/c clutch may be tied in with the trans on this one... if this is the case... "

QUOTE" An electromagnetic clutch is energized when the clutch cycling pressure switch closes. The switch is located on the suction accumulator/drier. The closing of the switch completes the circuit to the clutch and draws it into engagement with the compressor driveshaft. When the A/C is engaged, electronic pressure control (EPC) pressure is adjusted to compensate for the additional load on the engine." This EPC is controlled by a solenoid, so you may have an issue with the solenoid or associated regulator valve.

Otherwise check for vaccuum leaks, bad plugs, wires, simple tune-up procedures and get back to us!!!

thanks, i have another question. my car keep missin as in missfireing and i just did a tune up, but it only miss when my engine gets hot, what could it be. One more thang i had a skweeky sound in the engine so i changed the tentioner but that was'nt it and the belt,but still skweeks what could it be.

sounds to me like you could have a coil on the way out... is it only a one cylinder misfire? is the check engine light on? did you have the codes read?

as for the squeak, any oil or some sort of lubricant could have got on the belt causing it to squeak. Can you describe the squeak? Odd question i know :P