This was a friend of mines truck broken down at my house so I did not know this truck well. It had several things wrong with it and has over 200,000 miles on it. I was working with their low budget so I had limited funds available. It needed lots of repairs (fuel injectors, throttle position sensor, fuel pressure regulator, IAC, distributor cap/rotor/plugs/wires, starter, tune up items, etc) all because it was not well maintained. Along with the other things I replaced when I replaced the IAC valve I replaced the fuel pressure regulator at the same time and inside the spring was broken, rusted and corroded. When I replaced them together it helped until operating temperature kicked in but in the end I still had the stalling problem. What wound up really finally fixing it was the coolant temperature sensor. What I read at the library was when the truck first starts it runs on the main computer using those settings, but when it gets to operating temperature it goes off of it. It took me a while of checking everything I had repaired over and over and then I replaced the coolant temperature sensor and it ran good after that. I do not think that part was too expensive either. Like $15.00 to $20.00. Hope all that helps you!
Sunday, October 2nd, 2011 AT 7:24 PM