cranknrods
Full Access Member
ok-heres the deal. i can get in and start the truck in the morning and it runs just great but then it stops getting fuel and dies. let it sit for a minute and it a start right up and run alittle bit then die -on and on like this and every time i start it, the dang thang will run for a little less time then the time before. when it dies and i turn the key i dont hear the lift pump coming on anymore. the lift pump has been changed 3 times cause i keep thinking i got a bad one-the last one was a GM pump-so its not the pump-someting in the wireing to the pump is getting hot and not sending volts to the LP . and i just put in a new pump relay and thats not it. any ideas-its not the PMD either. is their a pressure sensor in the line some place telling the pump to turn on and off as needed or maybe another relay or something. its really hard to trace the fault cause it only happens when the wires are hot and by the time i get under the truck to find the electrical fault i only got about 5 min's before it cools and starts sending volts again. please help-im tearing my hair out
thanks for the replies any and all ideas are greatly appreciated.
thanx
thanks for the replies any and all ideas are greatly appreciated.
thanx