timing dances around after warmup

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D. Kocher - 24 Apr 2004 13:53 GMT

89 pickup....just had a valve job and head gasket replaced.
Timing is perfect until the enging warms up, then with the timimg light
atatched you can see it dancing back and forth.

any help would be apreciated
dave

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Miles - 24 Apr 2004 16:28 GMT

> 89 pickup....just had a valve job and head gasket replaced.
> Timing is perfect until the enging warms up, then with the timimg light
> atatched you can see it dancing back and forth.

When was the last time the distributor cap was replaced? I assume this
truck has electronic pickup and no points?

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D. Kocher - 25 Apr 2004 13:49 GMT

the cap and rotor were just replaced....yes, electronic

> > 89 pickup....just had a valve job and head gasket replaced.
> > Timing is perfect until the enging warms up, then with the timimg light
> > atatched you can see it dancing back and forth.
>
> When was the last time the distributor cap was replaced? I assume this
> truck has electronic pickup and no points?

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Miles - 26 Apr 2004 05:26 GMT

Only other item that comes to mind is the cam angle sensor. I don't
know if thats on the engine block somewhere or very commonly in the
distributor.

> the cap and rotor were just replaced....yes, electronic
>
[quoted text clipped - 4 lines]
>>When was the last time the distributor cap was replaced? I assume this
>>truck has electronic pickup and no points?

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D. Kocher - 26 Apr 2004 21:52 GMT

thanks....i will look into it

> Only other item that comes to mind is the cam angle sensor. I don't
> know if thats on the engine block somewhere or very commonly in the
[quoted text clipped - 8 lines]
> >>When was the last time the distributor cap was replaced? I assume this
> >>truck has electronic pickup and no points?

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