quadrajet problems - El Camino Central Forum : Chevrolet El Camino Forums
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Old 12-17-2011, 07:33 AM
Dave B. Dave B. is offline
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Master Wrench
 
Join Date: Jan 2009
Location: Niagara Falls , New York
Year: 1984
Model: El Camino
Region: 1 (NY)
NECOA #: 13406
Posts: 327
Dave B. will become famous soon enough
Default quadrajet problems

Having idle problems with a 1984 El Camino 305 W/ a c.c.c quadrajet. I bought a rebuilt Carb. from Guaranteed carburetors out of Largo, Fla. I have returned carb. once & been advised carb. is fine & to check my linkage. If you start car & do`t rev. it up it idles @ 750 rpm. If you rev it up to 2000 rpm & let off it only idles down to 1200 rpm. With all linkage unhooked you can manually push on carb. & it goes to idle. With linkage hooked up ,you can bump accelerator pedal & car will idle.
Had car to my local garage & they discovered that if while car is idling @1200 rpm ,you shut car off you can see carb. relax. Seems like this would be a problem w/ vacuum holdig carb. partially open ??
I` m going to see if I have a diagram of where vacuum hoses go on carb. Anybody got any other suggestions ??

Dave B.
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