Random stall on 98 C1500

[glfirefighter144]

As stated, random stall on my 98 GMC C1500 350/4L60E, sometimes within a few minutes of startup, sometimes an hour. New dist cap/rotor button, new Ignition control module, used coil from another motor, new plugs and wires, all in last month, new fuel pump and filter last spring, all AC Delco parts

Truck idles @ 700rpm with 21-22.5° timing advance
At 1000 rpm it is 24°

Will get access to a better scanner to find cam retard setting next week hopefully

Any help appreciated

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[socool9004]

Will it re start when it dies?

 

[skylark]

I have had a couple of random stall issues that were both crank sensors going out.

 

[glfirefighter144]

Will it re start when it dies?

It will within 1-2 tries

I have had a couple of random stall issues that were both crank sensors going out.

That's what I was thinking, how hard is it to get to


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[skylark]

It will within 1-2 tries



That's what I was thinking, how hard is it to get to


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Easy, get it from the bottom right behind the harmonic balancer. Just one wire connection and one bolt.

 

[glfirefighter144]

Easy, get it from the bottom right behind the harmonic balancer. Just one wire connection and one bolt.

Thanks, guess I'll try that tomorrow, I guess acdelco is preferred replacement

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[glfirefighter144]

Figured I'd update, everything I had tried had no improvement, so I started backtracking, and after a week I have had no stalls, after repositioning my fuel pump wiring, guess when it quits raining and dries up a little, I'll pull the bed and rewire the plug again, maybe this time it will work without issue

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