Surging Idle

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NOWAY55

New member
I have a few other posts on here, but separating the different problems. My idle seems to be surging up and down quite a bit and has even died just sitting in the driveway. I am using an STG 50# chip setup with controller in glovebox.

Any suggestions or ideas where to go with this problem?
 
W

wantingasy

Active member
Re: Surging Idle

Vacuum lines for sure. Mine was doing it bad, so I replaced the vacuum lines and it fixed most of it. It only does it on a cold start now. Once warmed up and I start it, it idles perfect.
 
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wantingasy

Active member
Re: Surging Idle

I think that's what is causing mine on a cold start because last time I did a tuneup I found out my distributor is off like 3 teeth.....I didn't do it, previous owner :oops:
 
gjp

gjp

another post whore
Re: Surging Idle

all that stuff could be it. I threw in a phill long chip and mine stopped stalling.
 
B

BacDoc

New member
Re: Surging Idle

wantingasy said:
I think that's what is causing mine on a cold start because last time I did a tuneup I found out my distributor is off like 3 teeth.....I didn't do it, previous owner :oops:
Click to expand...

I had such a hard time with cold starts before I set my timing. Set it and now it fires right up and idles smooth.
 
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NOWAY55

New member
Re: Surging Idle

OK, how do I set or check the timing? Don't say I need a timing light. I sold that when I got rid of the 5.0 years ago! Didn't think I would need one again.
 
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wantingasy

Active member
Re: Surging Idle

NOWAY55 said:
OK, how do I set or check the timing? Don't say I need a timing light. I sold that when I got rid of the 5.0 years ago! Didn't think I would need one again.
Click to expand...
Didn't think you would need one again?!?!? You need one for every car!!! :rotf:
 
gjp

gjp

another post whore
Re: Surging Idle

You first have to remove the computer advance. tan wire behind carpet in passanger foot area. It will have a black connector on it. with the engine off unplug it. Start truck. it should be at 0*. check with timming light. I would do a TDC check because sometimes they are off. shut off truck, reconnect wire. clear computer. pull fuses for 30 seconds. put fuses back and go.
 
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wantingasy

Active member
Re: Surging Idle

gjp said:
You first have to remove the computer advance. tan wire behind carpet in passanger foot area. It will have a black connector on it. with the engine off unplug it. Start truck. it should be at 0*. check with timming light. I would do a TDC check because sometimes they are off. shut off truck, reconnect wire. clear computer. pull fuses for 30 seconds. put fuses back and go.
Click to expand...
Not for me. I would have to pull my distributor. Reset it in after finding TDC. Pray for a minute, then hook everything back up. Pray for another minute. Then try to start it and put a gun on it. :rotf:
 
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