Car idles really low and stalls when I put it in reverse

Tiny
CODY DUNNY DUNITHAN
  • MEMBER
  • 1990 CADILLAC ELDORADO
  • 4.5L
  • V8
  • FWD
  • MANUAL
  • 120,000 MILES
My car ran fine, it wanted to stall once or twice a month when my foot was on the gas ran it real hard on the highway. Yesterday the alternator burnt up and I went and traded at a salvage yard for one from a Devill. I put it in and it ran good for an hour or so. I parked it went to go get in to drive started idles for a little put it in reverse the car stalls. If I am not on the gas not so much in drive looked down the dash said the battery is not charging. The connection was loose I tightened it and it ran good in reverse and drive still idles low, but the connection went loose again. I put a new nut on it it is staying right, but my car still stalls in reverse not so much drive.
Wednesday, June 1st, 2016 AT 9:44 AM

2 Replies

Tiny
CODY DUNNY DUNITHAN
  • MEMBER
  • 2 POSTS
After I put the other alternator in, the cars idle was really low.
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Wednesday, June 1st, 2016 AT 9:45 AM
Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Try cleaning throttle plate on both sides and iac hole with choke cleaner. Check for broken vacuum hoses/disconnected etc.
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Wednesday, June 1st, 2016 AT 12:15 PM

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