My truck has been doing this on and off. Mostly when fully warmed up and not at cold start as most of the threads describe (from a quick search).
Today it happened again, I hop in and drive 20 miles to pickup my daughter. Truck fully warmed up, when I restart before I even put it into "D" I notice that it idles way to high - at nearly 2000 RPMs. I'm used to normal idle around 800-900RPMs, so 1800-2000 feels waaay too high. The truck lurches FWD as I put it into gear and I fight its tendency to pull FWD when in slow traffic - annoying.
Where do I start the diagnosis - I'll check the cables first, make sure nothing is stuck or out of place. I've read something about ISC (Idle Speed Control) valve - is there a way to test it individually?! I've also read something about MAF - not even sure where that is...
Need some help to get started - thx,
James
Today it happened again, I hop in and drive 20 miles to pickup my daughter. Truck fully warmed up, when I restart before I even put it into "D" I notice that it idles way to high - at nearly 2000 RPMs. I'm used to normal idle around 800-900RPMs, so 1800-2000 feels waaay too high. The truck lurches FWD as I put it into gear and I fight its tendency to pull FWD when in slow traffic - annoying.
Where do I start the diagnosis - I'll check the cables first, make sure nothing is stuck or out of place. I've read something about ISC (Idle Speed Control) valve - is there a way to test it individually?! I've also read something about MAF - not even sure where that is...
Need some help to get started - thx,
James
