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03-29-2011, 04:20 PM
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#1 |
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Registered User
Join Date: May 2010
Location: St.Louis
Posts: 644
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Throttle sticking
When I start up my truck its runs really high RPM and then a quick hit of the pedal brings it down to normal idle RPM. I dont have an RPM gauge. Is this the pedal or the linkage near the carb?
Thanks for the help |
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03-29-2011, 04:42 PM
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#2 |
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Registered User
Join Date: Aug 2009
Location: Bowser
Posts: 13,731
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Re: Throttle sticking
Might be the choke on your carb too!! What carb? What choke?
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03-29-2011, 04:51 PM
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#3 |
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Registered User
Join Date: Feb 2008
Location: Jackson, TN
Posts: 99
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Re: Throttle sticking
When the engine is started cold, this is normal. The carburetor has fast idle mechanism that puts it in a fast idle condition when you first start the engine (when you depress the pedal to the floor). Once the engine started and you depress the gas pedal it releases the fast idle cam, and brings the rpm down to normal idle.
__________________
Retired Navy 1972 C10 Cheyenne fleetside 350 sbc, 700r4, 3.42 rear Last edited by tqlspec; 03-29-2011 at 04:55 PM. |
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03-29-2011, 04:57 PM
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#4 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,690
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Re: Throttle sticking
its supposed to do this
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03-29-2011, 06:21 PM
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#5 |
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Registered User
 
Join Date: Mar 2011
Location: Pequannock NJ
Posts: 259
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Re: Throttle sticking
^^^ Yup, mine always has. It builds up quick air pressure from my compressor so I dont mind it.
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03-29-2011, 09:50 PM
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#6 |
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Senior Member
Join Date: Jul 2010
Location: South Dakota
Posts: 4,093
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Re: Throttle sticking
mine does it too when its colder or has sit for a while.
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1969 Chevy c20(Miss Hackjob) |
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03-30-2011, 04:30 PM
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#7 |
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Registered User
Join Date: Oct 2005
Location: Overland Park, Ks.
Posts: 5,229
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Re: Throttle sticking
Like the guys say, this is normal but if it is too fast to suite you it is adjustable. On a q-jet carb the adj. is on the pass side way down low on the caeb. You have to shut the engine off & open the throttle to get to it. The screw will face forward. It doesnt take much. Back the screw out a little & try it.
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