Engine

[95 MONTECARLO Z34]

WOULD LIKE TO KNOW IF ANYONEHAS HAD THIS PROBLEM/WHEN I FIRST START MY CAR IT STUMBLES AND WANTS TO CUT OFF I GOT TO KEEEP MY FOOT ON THE THROTTLE TO KEEP RUNNING. AFTER IT GETS WARM IT RUNS LIKE A CHAMP

[taillight]

When was the last time you did a tune-up ? Look for a vacuum leak or vacuum hose cracked. Clean throttle plate and IAC motor.

[taillight]

IAC, Idle Air Control on the throttle body

[blazes9395]

Originally Posted by 95 MONTECARLO Z34

WOULD LIKE TO KNOW IF ANYONEHAS HAD THIS PROBLEM/WHEN I FIRST START MY CAR IT STUMBLES AND WANTS TO CUT OFF I GOT TO KEEEP MY FOOT ON THE THROTTLE TO KEEP RUNNING. AFTER IT GETS WARM IT RUNS LIKE A CHAMP

For the record or future reference, this is almost always the lower intake gaskets. The 3.4's were very common for this problem, the idle would bounce up and down and somtimes stall. As the engine warmed up, the heads/intake would expand and seal the leak allowing the engine to run alright when warm.