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There may be a vacuum leak or a stuck EGR needle. I cleaned the EGR valve on my 87 Chevy Nova and the idle straightened out. The EGR valve was allowing exhaust gasses to escape into the fuel mix at the wrong rpm. It is suppose to open at high rpm to cool the internal chamber and prevent high temperature chemical reactions that result in unwanted emission's.
What else can I help you with?
Is there a fuel pump relay switch on a 1987 chev suburban?
No.
Why does 1993 chev 454 idle rough between 800 and 1100 rpm?
your mom
When was production finished for chev El Camino?
1987 was the last production year
What is the torque for the dome and heads in a 1987 chev pickup?
Torque for the dome???????WHAT the heck is a dome???????????????
What temperature thermostat for 7.4L 1996 chev suburban?
195 degree
What is the torque for the dome and heads for a 1987 chev 350 pickup?
Torque for the dome???????????????????????? What the heck is a dome?????????
Where is the computer located on a 1987 2.5 chev celebrity?
The computer is located behind the glove box on the firewall.
Why is your truck running rough at high speeds and during acceleration. Chevy 92 5.7 liters?
its a chev try changing fuel and air filters
Will a turbo 350 transmission fit in a 1987 chev truck if it came out with a 700 r4 transmission?
This will not bolt in without major modification
What is the title Chev?
CHEV
Where is the coolant temperature sensor on a 97 Chev Lumina?
The temperature sensor is located in the thermostat housing which is on the drivers side of engine, behind the throttle body near the top of the engine
What is the name of the Chev homeworld?
Chev.
