not surprised?

Presage

New member
Went after some maintenance this weekend...changing cap,rotor, after which the truck sounds great but now, of course, it won't idle, runs surging up to 1k rpm and then falls to 500 and dies. Probably should have left it alone.

I'm guessing a vacuum leak...
 

NJ93TY

Donating Member
Re: not surprised?

Vacuum leak you would have a high idle and does it misfire? Maybe you have a wire mixed up? Double check your firing order.
 

Don W.

Stab it and steer it
Re: not surprised?

My :2cents: would be, after vac leak, partially open throttle. Check for free movement and complete closing. (IAC handles air at idle.) recheck timing with tan wire off. If a pair of wire were reversed I think you'd know it immediately, but make sure ALL wires are fully seated. Maybe you bumped something doing the cap? Check and re-check.
 
Re: not surprised?

Check to make sure the timing module under the cap is connected up snug. If you took it off make sure you use dielectric grease on the bottom metal part. Then check the timing wire that connects to the ECM. I highly doubt thats it since you didnt mess with it but it helped me. Its the brown wire with a black stripe. It has a black connector on it.
As I flexed the wire the idle would change. I replaced it and the idle smoothed out. Mine just runs shitty until it warms up anyways.
 

Presage

New member
Re: not surprised?

Thanks for the ideas. As a matter of course I need to check the vacuum lines anyways, then start looking for whatever I may have disturbed while I was back there.

I'll post when I figure it out.
 
Top