Michael barnette
Junior Member
I have a strange issue as my 5.2 idles fine but when accelerator pedal is pushed starts backfiring and loosing rpms til it dies if you hold the pedal down. Can’t get over 2000 rpm. Any help is appreciated.
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Let's maybe go down a short list. Does it throw a code?I have a strange issue as my 5.2 idles fine but when accelerator pedal is pushed starts backfiring and loosing rpms til it dies if you hold the pedal down. Can’t get over 2000 rpm. Any help is appreciated.
Fuel pump is definitely on the list... But one of the most expensive. I'd prob look into the fuel filter first; can't hurt ya know.It has the obd1 setup and I can’t retrieve codes. Truck idles great- no missing or rough idle. I just bought the truck and it ran good when I first got it but now won’t go over 2000 rpms. I’m going to try a fuel pump and if that doesn’t work I’ll be lost as someone changed the exhaust system and it has the upstream o2 sensor but not the downstream one. Runs good when first starts but can’t accelerate after a couple of minutes running.
It has the obd1 setup and I can’t retrieve codes. Truck idles great- no missing or rough idle. I just bought the truck and it ran good when I first got it but now won’t go over 2000 rpms. I’m going to try a fuel pump and if that doesn’t work I’ll be lost as someone changed the exhaust system and it has the upstream o2 sensor but not the downstream one. Runs good when first starts but can’t accelerate after a couple of minutes running.