Go Back  Chevrolet Forum - Chevy Enthusiasts Forums > Past Chevrolet Cars > Cavalier
Reload this Page >

1992 Chev Cavalier Z24 runs rough at idle & sometimes stalls

Notices
Cavalier Starting in the 1980s. the Cavalier made a name for itself by offering an affordable 2 and 4 door compact.
Platform: J-body

1992 Chev Cavalier Z24 runs rough at idle & sometimes stalls

Old July 8th, 2010, 8:39 PM
  #1  
CF Beginner
Thread Starter
 
Join Date: Jul 2010
Posts: 2
Likes: 0
Received 0 Likes on 0 Posts
Default 1992 Chev Cavalier Z24 runs rough at idle & sometimes stalls

1992 Chev Cavalier Z24. runs rough at idle and sometimes stalls. Black exaust exits tailpipe and gas mileage is terrible. Mechanic told me it was a melted vacuum hose coming from MAP sensor under plenum but could not find the culprit...suspecting MAP sensor based on internet research but not sure. higher RPM's prevent stalling at low speeds...so we drive two-footed (one on gas and the other on brake). I'm no expert and really don't know where to go from here without spending another $500 to have the mechanic fix the darn thing.
Please help me....16 yr old daughter drives the car and don't need her to have problems and potential dangerous situations.
dhertzog4349 is offline  
Old July 8th, 2010, 8:45 PM
  #2  
Administrator
 
in2pro's Avatar
 
Join Date: Apr 2008
Location: Austin, Texas
Posts: 7,526
Likes: 0
Received 0 Likes on 0 Posts
Default

IAC may need to be cleaned IAC= Idle Air Control should be located on or very near the throttle body.
The throttle body and plate could also be dirty(carbon build up) causing rough idle stalling.

the EGR stuck open could also cause poor idle but it sounds like its could be running too rich....
in2pro is offline  
Old July 8th, 2010, 8:52 PM
  #3  
CF Beginner
 
Join Date: Jul 2010
Posts: 14
Likes: 0
Received 0 Likes on 0 Posts
Default Any check engine light?

you should get a service engine soon (SES) light. you can get the code by putting a jumper between the A and B terminals in the connector under the dash and count the blinks of the SES light. - I see In2pro recommends IAC as I was typing this - I agree. also clean the EGR. check the air filter - I helped a Dad/Daughter at Autozone last night with a similar problem - with the air filter removed, it ran fine. they ahd a MAF code MAF sort of replaced MAP in the mid 90's or as we went from OBD1 to OBDII
ShadeTreeJack is offline  
Old July 8th, 2010, 9:00 PM
  #4  
Administrator
 
in2pro's Avatar
 
Join Date: Apr 2008
Location: Austin, Texas
Posts: 7,526
Likes: 0
Received 0 Likes on 0 Posts
Default

Welcome to the forum ShadeTreeJack
in2pro is offline  
Old July 8th, 2010, 9:07 PM
  #5  
CF Beginner
Thread Starter
 
Join Date: Jul 2010
Posts: 2
Likes: 0
Received 0 Likes on 0 Posts
Default

intermitent SES light
dhertzog4349 is offline  
Old July 8th, 2010, 9:14 PM
  #6  
Administrator
 
in2pro's Avatar
 
Join Date: Apr 2008
Location: Austin, Texas
Posts: 7,526
Likes: 0
Received 0 Likes on 0 Posts
Default

It would defiantly be a good idea as ShadeTreeJack suggested to have the codes read, write them down and then cleared.
before jumping on them wait and see which ones come back and go from there as the light going off and on can mean the issue clears up and is no longer flagging.
in2pro is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
perry2326
Cavalier
1
October 19th, 2013 10:25 PM
Alisha9544
TrailBlazer
1
December 24th, 2011 8:24 AM
aw380
Cavalier
1
March 25th, 2011 6:37 AM
dizturbed
Cavalier
9
January 20th, 2010 1:38 PM
fur_fenton
Silverado & Fullsize Pick-ups
7
June 2nd, 2009 10:10 AM


Thread Tools
Search this Thread
Quick Reply: 1992 Chev Cavalier Z24 runs rough at idle & sometimes stalls


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: