engine sporadically rumbles in idle

Avatar
BATTERY76
  • MEMBER
  • 1 POST
1999 chevy s10, 120000 miles. the engine sporadically rumbles in idle, and hesitates momentarilly when gas is pressed down firmly. problem seems worse when air conditioning is on. changed air filter, pcv valve, and fuel filter and nothing has really changed. scanner isn't reading any codes. just wondering if you had any tips on where i should look next to fix this problem?
Jun 27, 2007 at 10:52 AM
Avatar
MIKE H R
  • MEMBER
  • 3,094 POSTS
check the plugs to see if one is going bad. when put under pressure even though the car is running all right it will start to miss, Check the plug wires also
Jun 28, 2007 at 2:03 AM
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.

Frequently Asked Problems for This Vehicle