99' chevy 5.7L suburban Vortex engine misfires at high speed when engine revs up over 3000 RPM
20

Asked by rmuhlfeld Jan 28, 2017 at 04:24 PM about the 1999 Chevrolet C/K 1500 LS Extended Cab 4WD

Question type: Maintenance & Repair

a new spider, distributer, coil and fuel pump have been installed along with all
ignition wires and plugs

3 Answers
20

rmuhlfeld answered 7 years ago

checked all those. It really appears electrical since the misfirre is very rapid and constant. if I let off on the gas pedal the engine resets and then all works great again.

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