Question about 1996 Chevrolet Tahoe

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To quoat "smileyjr1 year ago" my 1996 chevy tahoe has rougha rough idle and low r.p.m's in drive what can i do to solve this problem it idle's good in park but when i come to a stop light the r.p.m's drop down to about 500 r.p.m's and the truck starts shaking and will Quit running, but if i shift it up in neutral it Kinda smoothes out or i can place my foot on the gas to bring the idle up and it will smooth out, high speed is no problem lets say anything above 700 rpm it acts as if it is loading up or out of fuel, its like the truck can not tell it is not at high speed. normaly the truck will idle up when you start the a.c. the truck acts as if it forgot how to idle up. the truck makes no code for this and i have done all the normal tune up plug wire cap rotor. the wires cap and rotor made no differance and the pluges made little differance no more than adjusting the gap.

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TRY Cleaning your throttle body. if it gets gummed up the minimum airflow rate is affected and will idle low. also might wanna try cleaning the iac valve.

Posted on Sep 28, 2010

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Posted on Jan 02, 2017

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