2000 GMC Pick up truck - 5.3 litre - Why does it skip? ?

Have had injectors checked, the coils, fuel injectors, changed the fuel filter, and nothing helps. Any ideas on why this skips going up hills or when you step down hard on the gas - doesn't do it in city driving. Thanks for your quick answers.
2000 GMC Pick up truck - 5.3 litre - Why does it skip? ?
check out your distributor, it could be cracked. If not take it to a mechanic and see if they could look at it.
2000 GMC Pick up truck - 5.3 litre - Why does it skip? ?
No dizzy on that engine, if I recall. Good old coil on plug ignition.



You need to perform further diagnosis like a compression check.

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