Car starts but won't idle.

1989 CHEVROLET CAPRICE
100,000 MILES
Avatar
MTM0912
  • MEMBER
  • 6 POSTS
I have a 89' caprice with a 305 in it. It sat for about 9 months and I am trying to get it going again. I tried starting it and it starts up but won't stay idling. I can give the throttle a little push and it will keep running. I have replace the TPS sensor, fuel pump and fuel filter. I don't know where else to look.
May 31, 2012 at 5:36 PM
Avatar
ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
which motor?? carb or injected??

Roy
May 31, 2012 at 5:44 PM
Avatar
MTM0912
  • MEMBER
  • 6 POSTS
305 and it throttle body injected.
May 31, 2012 at 5:47 PM
Avatar
ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
look for vacuum leaks around the throttle body

the iac motor may be bad or carboned up

the injectors may also be dirty as well.

Roy
May 31, 2012 at 5:52 PM
🔧 Tools & Auto Repair Parts
Find automotive tools, diagnostic equipment, and replacement parts for your next repair.
Shop on Amazon →
Paid affiliate link. As an Amazon Associate, we earn from qualifying purchases.
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Ask a new question

Frequently Asked Problems for This Vehicle