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Author Topic: Idling high  (Read 337 times)

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Offline coleandrachel

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  • Posts: 12
Idling high
« on: September 30, 2010, 09:07:33 PM »
My 78 firebird is idling too high, around 1500.. How can I change it to idle lower? Thanks?
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Offline shank0668

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  • Posts: 593
Re: Idling high
« Reply #1 on: September 30, 2010, 09:15:03 PM »
Carb adjusting.
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Offline HOMER

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  • Posts: 2194
  • Brown Bandit lol
Re: Idling high
« Reply #2 on: September 30, 2010, 09:52:27 PM »
check all vacume lines if one is off or leaking it  will
cause high idle also
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Offline hada76

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  • Posts: 2808
  • '79 WS6 W72 M21
Re: Idling high
« Reply #3 on: September 30, 2010, 09:58:59 PM »
did the prob just start?  is it always high or just when cold...thats what the choke is for
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'78 T/A Y88 auto  sold
'79 T/A WS6 4sp
'70 Z/28 4sp

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Offline rhino33

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  • Posts: 507
Re: Idling high
« Reply #4 on: October 01, 2010, 02:09:51 PM »
vacuum leak, check throttle shaft wear, pcv, charcoal canister and egr systems for leaks
choke not coming off high idle possible
stuck primary piston in carb possible
« Last Edit: October 01, 2010, 02:11:43 PM by rhino33 »
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