1994 Chevy Cavalier idles very roughly

Tiny
2CP-ARCHIVES
  • MEMBER
  • 1994 CHEVROLET CAVALIER
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 102,000 MILES
1994 Chevy Cavalier mileage: 102,000. The car seems to run fine except when I'm in drive and at a complete stop then it idles very roughly, makes the whole dashboard vibrate. It idles smoothly when the car is in park, reverse, neutral, and when the car is being driven. Can you give me any idea as to what the problem might be?
Monday, November 22nd, 2010 AT 8:31 PM

3 Replies

Tiny
2CP-ARCHIVES
  • MEMBER
  • 4,540 POSTS
If a major tune-up has not been done recently, this could be the cause of your problem. Replace the spark plugs, plug wires, fuel and air filters, etc. Also, replace the oxygen sensor. In addition, service the fuel injection system. Clean the carbon deposits from the throttle bore and idle passages.
Was this
answer
helpful?
Yes
No
Monday, November 22nd, 2010 AT 8:32 PM
Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
Might want to do a compression check too? A weak cylinder may run fine at higher rpms and no load but under low rpms and load show up as rough running?
Was this
answer
helpful?
Yes
No
+1
Monday, November 22nd, 2010 AT 9:54 PM
Tiny
FIXITMR
  • MECHANIC
  • 9,990 POSTS
Could also be a bad injector causing weak mixture under certain conditions?
Was this
answer
helpful?
Yes
No
Monday, November 22nd, 2010 AT 9:59 PM

Please login or register to post a reply.

Related Engine Idle Rough Content

Rough Engine Idle
GUIDE
Rough Engine Idle
A rough engine idle condition is a common issue that many drivers face often indicating underlying problems within the engine, fuel or ignition system. We have created this...
VIEW MORE