Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
I am sorry for the long wait
does the check engine light come on ?
do you know if there are any codes set in the computer ?
has anything been done recently to this car that this problem has started to act up or anything done to correct this issue yet ?
if the light is not coming on then the odds are there are NO codes set
the most common issue with these 5.7 engines are the optic spark distributors behind the water pump that cause this kind of issue
the best action to take is to change the fuel filter spark plug wires and spark plugs
if it still acts up then replace the distributer behind the water pump
these is not much more that will cause a miss intermitanlty