Results 1 to 7 of 7

10 tahoe

This is a discussion on 10 tahoe within the General Help forums, part of the LSx Technical Help Section category; boss has a 10 tahoe with 5.3L when ever he starts it (hot or cold) engine goes to 1800 rpm ...

  1. #1
    Junior Member
    Join Date
    Jun 2011
    Location
    pa
    Posts
    17

    red
    1989 camaro iroc

    10 tahoe

    boss has a 10 tahoe with 5.3L when ever he starts it (hot or cold) engine goes to 1800 rpm then return to normal when coming to stop sign or red light engine doesn't idle down properly. local dealership said that is normal,they said for fuel economy. is this normal?

  2. #2
    Super Moderator
    pajeff02's Avatar
    Join Date
    Feb 2009
    Location
    Mansfield, PA
    Posts
    21,567

    Black & Blue
    '02 WS.6 / '07 Suburban

    Our '07 Suburban has a 5.3 and has never done anything like that. No way it should rev that high already warmed up. I assume it has an idle air control (IAC) valve, wonder if it is sticking open and allowing more air into the engine on startup?

  3. #3
    Super Moderator
    pajeff02's Avatar
    Join Date
    Feb 2009
    Location
    Mansfield, PA
    Posts
    21,567

    Black & Blue
    '02 WS.6 / '07 Suburban

    BTW: Just noticed your location. Whereabouts in PA?

  4. #4
    Junior Member
    Join Date
    Jun 2011
    Location
    pa
    Posts
    17

    red
    1989 camaro iroc

    thanks for info. new alexandria 30 miles east of pittsburgh

  5. #5
    Senior Member TLS_Addict's Avatar
    Join Date
    Mar 2008
    Location
    PA
    Posts
    1,706

    Ray Charles blue
    1492

    My dads 2011 5.3 GMC doesnt go up to 1800 rpms like that either. Something is not quite right.

  6. #6
    Moderator Cutlass's Avatar
    Join Date
    Apr 2008
    Location
    Madison, WI
    Posts
    6,996

    1999 Formula WS6 M6-sold
    2001 Silverado Z71

    Sounds like a vacuum leak or something is wrong with the electronic throttle body. Tell him to take it to another GM dealership...I assume its still under warranty, correct?

  7. #7
    Junior Member
    Join Date
    Jun 2011
    Location
    pa
    Posts
    17

    red
    1989 camaro iroc

    he's taking to another dealership yes still under warranty

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. 02 tahoe z71
    By 98maro in forum GM Trucks
    Replies: 15
    Last Post: 06-19-2012, 09:19 PM
  2. LS1 in a 95 Tahoe
    By l88zl1 in forum New Member Introductions
    Replies: 9
    Last Post: 02-11-2011, 08:36 AM
  3. 96 Tahoe... Need some help
    By knightryda01 in forum GM Trucks
    Replies: 6
    Last Post: 11-17-2010, 04:47 PM
  4. LS6 Cam in Tahoe
    By Naf in forum GM Trucks
    Replies: 0
    Last Post: 06-24-2008, 02:04 AM
  5. 2004 Chevrolet Tahoe - DIY 2004 Tahoe
    By Ed Blown Vert in forum Stereo and Electronics
    Replies: 0
    Last Post: 08-16-2007, 01:50 AM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •