1999 Chevy Silverado idle speed out of sync

Asked by Jun 27, 2015 at 06:48 AM

Question type: Maintenance & Repair

The idle speed takes over while driving ,it accelerate automatically

1 Answer


Clean the throttle body and idle control first, might be full of carbon. Look on youtube on how to do it. Do you have a CEL on?

Your Answer

Add photo

Related Questions

  • can you put a 4.10 rear end off a 2500 silverado 4x4 on a 1500 4x4 silverado? 2 answers

    I have tried to find a 4.10 rear end for a 1999 Chevy 1500 Silverado without much luck. There seems to be a lot of 4.10 rear ends for the 2500 Silverado available. Can I put the 2500 rear end on the...

    1999 Chevrolet Silverado 1500 LS 4WD Standard Cab LB


    Maintenance & Repair

  • ford sync 1 answer

    My Ford sync will not work. I cant connect my phone. Ive tried pulling the fuse and that doesnt help

    2013 Ford Focus SE


    Maintenance & Repair

  • increase rpm, accelertion and top speed... 15 answers

    - does increasing engine idle also increase acceleration and top speed? i already took care of my rev sync problem, now i just want a little adjustment...

    Maintenance & Repair

  • Problem with SYNC and iPod 1 answer

    Anyone having issues with SYNC no longer communicating with an iPod? My iPod worked great from day one in February of this year. Last week I told SYNC to play a certain play list and the “nice lady...

    2011 Ford Escape XLT 4WD


    Maintenance & Repair

  • Sync 1 answer

    My sync for phone quit working. What can I do to restore it?

    2016 Ford Escape S




Search Maintenance & Repair Questions

Maintenance & Repair Experts

#1 Tom Demyan
Tom Demyan
Reputation 166,200
#2 dandyoun
Reputation 90,590
#3 tenspeed
Reputation 73,350
View All