Cadillac
 

Cadillac Forums | Help Us Help You | Advertise | Cadillac Parts | Cadillac News | Cadillac Classifieds

Cadillac Technical Archive | Cadillac Dealers | Cadillac Reviews | Cadillac Dealer Reviews | Cadillac Vendors

Results 1 to 7 of 7

Thread: High idle

  1. #1
    Caddy Dave's Avatar
    Caddy Dave is offline Cadillac Owners Member
    Automobile(s): 04 srx V8 Northstar
    Join Date
    Jul 2012
    Location
    Bronx NY
    Age
    40
    Posts
    61

    High idle

    I notice that just sometimes, the car idle high when started. When driving like this the car run hot and then the engine light come on. The guy told me the code that comes up is tell me that the car is running to lean or to rich. He also said it could be a vacuum leak some wear or a bad sensor. The question is what should look for to fix this problem, if anyone had this problem as well.


  2. Remove Advertisements
    CadillacForums.com
    Advertisements
     

  3. #2
    glake89's Avatar
    glake89 is online now Cadillac Owners Connoisseur
    Automobile(s): 05 srx awd v6 (gone), '07 GXP, 2010 li'l red wagon 3.6
    Join Date
    Aug 2010
    Location
    Interlochen,MI
    Age
    82
    Posts
    2,921

    Re: High idle

    There aren't many vacuum lines to check and at the age of the car, may be brittle. Loose bolts on the intake side of things can allow vacuum leaks. Snug them up.
    __________________________________________________ ________________

    This site is too much fun to not be a supporter
    Been fixin' cars for 74 years
    Some of what I know comes from experience, some from reading or listening,-most of it, I just make up

  4. #3
    Caddy Dave's Avatar
    Caddy Dave is offline Cadillac Owners Member
    Automobile(s): 04 srx V8 Northstar
    Join Date
    Jul 2012
    Location
    Bronx NY
    Age
    40
    Posts
    61

    Re: High idle

    Thanks for that. Should I also change the pcv valve and lines? I had replace the spark plugs. It look like the pcv valve is a dealer's part cause i notice these other part stores don't sell it.

  5. #4
    glake89's Avatar
    glake89 is online now Cadillac Owners Connoisseur
    Automobile(s): 05 srx awd v6 (gone), '07 GXP, 2010 li'l red wagon 3.6
    Join Date
    Aug 2010
    Location
    Interlochen,MI
    Age
    82
    Posts
    2,921

    Re: High idle

    Valve is likely OK unless you are getting oil in the air filter box. PVC lines are very suspect for leaks.
    __________________________________________________ ________________

    This site is too much fun to not be a supporter
    Been fixin' cars for 74 years
    Some of what I know comes from experience, some from reading or listening,-most of it, I just make up

  6. #5
    08SRX's Avatar
    08SRX is offline Cadillac Owners Connoisseur
    Automobile(s): 2008 SRX Sport Pkg
    Join Date
    Jun 2011
    Posts
    1,050

    Re: High idle

    You never stated what high idle is, nor do you say if you have a V6 or V8. Normally, when the V6 starts up it will idle at about 1100 rpm until it warms after which it will idle at about 600 rpm.

  7. #6
    Caddy Dave's Avatar
    Caddy Dave is offline Cadillac Owners Member
    Automobile(s): 04 srx V8 Northstar
    Join Date
    Jul 2012
    Location
    Bronx NY
    Age
    40
    Posts
    61

    Re: High idle

    I have the v8 northstar and it idle high off and on after driving stop and go traffic for about a hour. It would go between 1100 and 600 with in the ride. When it do that I also notice that my temp g, move over to the hot side. Now say I pull over and turn off the car to do some thing and get back and start it up I will now hear the front dual fans race to cool it down and stop when the line is back in the middle. I would not hear or feel them come on any other time. I just want to fix this heating problem before is gets worse. What should I do first.

  8. #7
    glake89's Avatar
    glake89 is online now Cadillac Owners Connoisseur
    Automobile(s): 05 srx awd v6 (gone), '07 GXP, 2010 li'l red wagon 3.6
    Join Date
    Aug 2010
    Location
    Interlochen,MI
    Age
    82
    Posts
    2,921

    Re: High idle

    High idle is most likely a small intermittent vacuum leak or a sticking throttle plate. The fans running after re-start is due to heat sink; if you continued driving rather than stopping it would probably cool itself down. I'm not sure you really have a problem other than the idle and that doesn't seem serious yet.
    __________________________________________________ ________________

    This site is too much fun to not be a supporter
    Been fixin' cars for 74 years
    Some of what I know comes from experience, some from reading or listening,-most of it, I just make up


Bookmarks

Cadillac Posting Rules

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Read about Lincoln | Buick | Kia Forte Forum