Engine Mechanical problem
2002 Mercury Sable 6 cyl Two Wheel Drive Automatic 62523 miles
Without a/c, car idles @ 675 rpm and idles smoothly. With a/c on, idle 'drops' to 630 rpm and then feels like it "misses" or "stalls" on occasion, but is gradually getting worse. RPM gauge will drop to 600 rpm and then recover to normal rpm quickly. If I then shut off the a/c the problem goes away.
I live in Phoenix and this began with temperatures reaching 110 degs (asphalt near 170 degs). Maybe just coincidental.
**First time here and I made a donation "prior to" submitting the question. Hopefully the question makes it the Pros accordingly.
have the same problem?
Monday, June 7th, 2010 AT 4:48 PM