Quote:
Originally Posted by ahausheer
. . . Almost like an intermittent vacuum leak or faulty idle control valve or worse. At idle the tack should not be jumping that much. . .
|
I agree. The symptoms of the idle dip, struggle not to stall and the 1000-rpm recovery described seem to indicate an intermittent vacuum leak from a dodgy idle air control valve, MAF sensor or any other air sensor it may have or leaky vacuum hose.
Had the same symptoms with the idle of my older car. Changed the idle air control valve. Solved the problem.