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Anonymous
Anonymous Posted on Aug 05, 2009
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I have a 2003 Yukon XL 1500 with the 5.3L engine. Twice in the last week when I was on the Interstate and had the cruise control on the vehicle unexpectedly stalled and I had to guide it to the shoulder. The Yukon went totally dead which was an extreme safety hazard for my family and for vehicles around me. Could there be a problem with the Engine Control Unit? The problem is not easily replicated and happened at random. I did notice some sluggishness when the crusie control is engaged.

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  • Posted on Aug 07, 2009
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There are a few causes for this to happen
I just put a fuel pump in yesterday in a 04 yokon XL with the same issue
it had a plugged fuel filter, and low fuel pressure.
Same complaint, coming from CA to TX, freeway speed cruise on and it just dies.

The vehilce needs to be looked at, and have vehilce scanned for codes.

I hope this helps.

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