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Thread: is this a vacuum problem?

  1. 12-07-2010, 03:02 PM #1
    Go_Fast
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    Default is this a vacuum problem?

    my car usually idles at 1500 rpms, but everymorning when i start it, it revs itself up to 2500, sometimes 3000 rpms until its warmed up. also everymorning on the first start i have to punch the gas to start driving, i guess the pedal gets stuck somehow overnight. i noticed that my boost needle isn't directly on zero (it was before)(car is off in pic).

    any ideas on what could be causing the high revving morning idle or sticking gas pedal?
    any ideas or suggestions would be helpful.
    thanks in advance.
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  2. 12-07-2010, 03:23 PM #2
    RBS
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    at idle, at running temp, is the car at full vacuum? -15 to -20?
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  3. 12-07-2010, 04:20 PM #3
    STRteg
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    your car usually idles at 1500rpm ? ..... I think that should be your main focus first
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  4. 12-07-2010, 04:52 PM #4
    Go_Fast
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    Quote Originally Posted by RBS View Post
    at idle, at running temp, is the car at full vacuum? -15 to -20?
    yeah usually around -20. when it starts to warm up it goes lower and lower until it sits at 1500
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  5. 12-07-2010, 05:00 PM #5
    Go_Fast
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    Quote Originally Posted by STRteg View Post
    your car usually idles at 1500rpm ? ..... I think that should be your main focus first
    well the idle hasnt had an issue before now, and i just got a job so getting to work is my main focus. thanks for your help.
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  6. 12-08-2010, 09:48 AM #6
    RBS
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    ok so let me get this straight, on idle it IS DEFINITELY at full vac right? or is it at 0, atmospheric pressure? the OP says "boost gauge is at 0". if you was nearby i would gladly look at the car for you.



    aside from that, it could be a bad IACV and the sticking is a dirty throttlebody plate, or someone stuck some bubblegum in there
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  7. 12-08-2010, 09:57 AM #7
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    Quote Originally Posted by RBS View Post
    ok so let me get this straight, on idle it IS DEFINITELY at full vac right? or is it at 0, atmospheric pressure? the OP says "boost gauge is at 0". if you was nearby i would gladly look at the car for you.



    aside from that, it could be a bad IACV and the sticking is a dirty throttlebody plate, or someone stuck some bubblegum in there
    its at full vac when its warming up. after a few minutes everythings perfectly normal again. i just want to get it fixed because it wastes alot of gas and is ridiculously loud.

    where are you located?
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  8. 12-08-2010, 10:27 AM #8
    RBS
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    forest park, this weekend im leaving town sadly. so the most help i can offer now is through IA
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  9. 12-08-2010, 11:00 AM #9
    Black4DrEK
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    Shit.. When I had a Bad IACV.. my car just wouldnt even idle at first start up.. until it warmed up.

    and yea it sounds like you should clean your Throttle body... Also Make sure the TB gasket it good, and the bolts are ALL tight.
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  10. 12-08-2010, 12:24 PM #10
    Go_Fast
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    thanks for the help guys.

    any idea about the boost needle? or is it just broken?
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  11. 12-08-2010, 12:37 PM #11
    Black4DrEK
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    It works doesnt it?
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  12. 12-08-2010, 12:50 PM #12
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    Quote Originally Posted by Black4DrEK View Post
    It works doesnt it?
    yeah
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  13. 12-08-2010, 01:00 PM #13
    Black4DrEK
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    If it aint broke, dont 'fix' it.
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  14. 12-08-2010, 11:15 PM #14
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    alright what about this? i know this should be at 0, the car is off

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  15. 12-09-2010, 09:36 AM #15
    RBS
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    thats your fuel pressure, the reading it gives when the car is on is what matters
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  16. 12-09-2010, 12:46 PM #16
    Go_Fast
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    Quote Originally Posted by RBS View Post
    thats your fuel pressure, the reading it gives when the car is on is what matters
    i know its for the fuel pressure i just thought it should say zero. i havent moved the car since saturday i think, and last time i looked it was a 0.

    i appreciate the help. i'm pretty new to this stuff
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  17. 12-09-2010, 01:53 PM #17
    RBS
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    all good, we all start somewhere.
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