Have a 2000 with 125k miles with an intermittent miss I can’t figure out. No codes, normal diagnostic live data (don’t have a misfire mode on scanner) and I’m stumped. I’ve replaces so far, fuel injectors, coil packs and wires, complete upper gasket set including valley gasket and still have the issue. It’s noticeable at idle and when under a load sometimes it’s bad enough I have to drop a gear manually because of the power loss. Transmission replaced 500 miles ago, any help is greatly appreciated…
2000 1500 5.3 intermittent miss
- Thread starter Vince2345
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Appreciate the input, a clogged cat would not be intermittent and yes I’ve tested the fuel pressure and change the fuel filter annually because pumps are expensive… it runs great around town, can feel the miss intermittent at stop lights and the problem under load is also intermittent.
A/C delco.. OEM
I believe so. Got them at Carquest.
zora
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Trying to eliminate possibilities, wrong plug is one of them.
Gotcha.. I’ve tried to pinpoint it for several months now, have an appointment at the dealer on the 18th because I’m at a loss and tired of throwing money at it.. figured I’d try here for ides.. appreciate the input..