Ok, truck started and drove fine down the driveway, soon as I let off the throttle the truck shut down, just like someone turned the key off. I stopped started it up again(no hard starting at all). Then went about my way about 50yrds later it did it again and kept doing it.(no sputtering just acted like someone turned off the key). No codes no CEL. Runs fine nothing is disconnected, has new plugs on it. It has done this a couple times before. I am sorta leaning towards IAC or TPS going out or sticking. Any ideas?

Also if i rev it in neutral it will either be fine, or lug down to around 200rpm then pop back up to normal. Or sometimes it shuts down.

Josh

 

asd relay is a good place to start.
when mine was bad it would bobble down to almost stalling when i let off the gas at low speed.

 

Awesome thanks I will look into that. Folks I need help on this ASAP btw lol I got college class in a few hrs and need my truck!


Josh

 

Could be faulty crank or cam position sensor too, besides the obvious bad connector or ground.

 

when my cam position sensor was on its way out it kicked on the cel. cmckenna had his go bad also and it didn't throw a code for him.

the parts store calls it a pickup coil and it's much cheaper at the parts store. i got mine from the dealer because the dummies at the parts store didn't know what a camshaft position sensor was.

for the asd relay, just swap another identical (non-critical) relay for it to see if that is your problem.

 

Got her fixed=) Was the IAC. Could that have caused bad fuel millage?

Josh