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Fast Idle - 2000 Saturn SL

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Could be a few things, either a) idle air control valve, or b) a vacuum leak. Ive replaced a couple saturn intake gaskets for wearing out, even with only 87k miles ive seen it happen.

Posted on Jul 31, 2010

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Posted on Jan 02, 2017

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1 Answer

Correct fast idle


Check this link for fast idle adjustment.

Edelbrock Carburetors Troubleshooting Fast Idle Adjustment

Also check out the following link for details about the adjustment:

Pages 22 23 Choke Fast Idle Speed

Feb 12, 2015 | Cars & Trucks

1 Answer

I have a 1986 GMC 1500 with a 5.0 and stock rochester carb. The truck will start but you must keep gassing it as it won't idle. It kicks off every time. Any suggestions on how to fix this cold natured


fast idle speed screw, works off the fast idle cam which the choke adjustment sets, it works together by linkages. This is the raised idle speed setting you need to keep a cold engine running. First you set the idle speed by the idle speed screw with engine at normal operating temperature. Then you set the linkage up so the cam is on a raised step, throttle will be held on that raised step. then you can turn the idle speed screw to get idle at about 1500-1800 rpm. Now when you start engine cold, choke will set the fast idle cam on that raised step- when engine starts and runs it should be running at your fast idle setting. That's how it supposed to work, you just have to get everything adjusted right. I hate carburetors, they never stay adjusted right. Considering their complexity and small mechanical parts, no wonder.

Dec 24, 2013 | 1986 GMC C1500

1 Answer

1969 Datsun 1600 pickup Fast Idle


Could be the fast idle cam for the choke. When the choke is closed the fast idle cam holds the throttle open until the choke opens.
The cam should be on the opposite side of the throttle cable.

Aug 14, 2012 | 1969 Datsun 1600

1 Answer

I have a 2002 PT Cruiser. On a cold start it starts on fast idle which is excessively fast. It is actually unsafe to put the car in drive. It will stay on fast idle for 5 minutes before dropping, but then...


code p 1193 refers to inlet air temp sensor problem --circuit high
a faulty ambient air temperature sensor or barometric pressure sensor will cause this effect as the idle control in the ECM is not getting correct temperature readings to set idle speed

Jun 23, 2017 | 2002 Chrysler PT Cruiser

1 Answer

Won't idle when cold


Test both the manifold air temp sensor and the coolant sensor. If either are out of range it can alter the cold start idle.

Oct 10, 2009 | 1997 Jeep Cherokee

1 Answer

Idle too fast at 2300 rpm


Yes your choke is sticking

Jul 09, 2009 | 1996 Isuzu Trooper

1 Answer

Fast idle after warm up .already changed IAC valve


fast idle is many times caused by a engine intake vacuum leak, use a can of carb spray and spray the top of the engine for leaks, if u hit one u will hear the eng change idle speed, also look for split or leaking vacuum hoses.

May 20, 2009 | 1994 Chevrolet C1500

1 Answer

98 Chevy 5.0 fast idle


try cleaning the throttle plate with the right cleaner . from a auto parts store.

Feb 28, 2009 | 1998 Chevrolet C1500

1 Answer

Fast idle


hi how are you. your auto choke is bad will need to replace.depending on wich one you have it may only be the vacume choke diafram ( high idle cut off). or it is the electric choke

Feb 13, 2009 | 1988 Chevrolet Caprice

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