5.7L Vortec issue
#1
5.7L Vortec issue
I have a 1997 Silverado, with a 5.7L Vortec and recently the engine has started to stumble and hesitate during acceleration and heavy load. I have recently replaced spark plugs, cap and rotor and fuel filter and haven't seen any improvment. Any suggestions?
#5
A weak fuel pump would not necessarily trigger a CEL. The spider injection could be causing that. I have had to replace a few. Also you did not list plug wires...a bad wire could cause that as well. I would still do a fuel pressure test though.
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