tdcarter72

I need to set my timing and check my warm curb idle. My question is, which one do I need to set first?

Also, has anybody use a tachometer on the coil on these trucks it check idle? I know they can be used on the old round coils, but I have never tried or seen one tried on the newer coils.

Just call me Sean

iTrader: (1)

Idle is not adjustable. A tach will work for any coil, just hook it to the negative side.

tdcarter72

Whats the screw on the throttle linkage for? I know you are not suppose to tamper with it, but somebody has, the end of it is all chewed up from someone turning it with pliers. I got a new one to put in it and want to make sure it set right.

How would you set the warm curb idle if it is not in spec. (mine should be 650-675rpm)?

Just call me Sean

iTrader: (1)

Turning the screw just screws up everything. The computer controls the idle with the IAC and fights against every screw turn. I believe Dr. Bowtie said the screw should be set to where the butterflies are just barely open. You can't set the idle.