Weird Idling
I had something odd happen today. I was sitting in a drive thru in park with the truck running. As soon as I put it in drive to leave the rpm's jump up to like 2000 and the truck lurched forward. I slam on the brakes and put it in neutral. Then the rpm's drop down below 500 and the engine starts spitting and sputtering then levels out at about 1000 rpm's. I limped it over to a parking spot and killed the engine. I popped the hood and didn't see anything out of the ordinary. Then I started it back up and it idled like normal and I drove it home with no problems. Anyone have any idea what would cause that? Should I be worried? Could that be the PCM or a sensor somewhere?
2005 AWD Silverado SS-CAI, Shorties, X pipe, SLP Loudmouth II, HD2 Shift kit, Corvette servo, tru-cool 40k, Yank SS3600, 160 Stat, Nelson tune.
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