No issues with fuel system, just when it's cold the truck will start up and then die after 10-30 seconds. (Usually) Can be fixed by pumping the accelerator pedal while starting. Does this indicate a worn out accelerator sensor or something worse?
Take it to autozone and have them check your battery for recommended cold cranking amps and have them test your starter and alternator they do it all for free
SOURCE: truck starts, dies. truck runs good some days,bad the next
I had the same problem with My 1990 F150 300 6cylinder 4x4.....I cahnged all the same things you did, finally I sprayed a can of Gumout through the throttle body and it worked and ran great. Now I add fuel injector cleaner to the gas and a regular clean with the gumout and the problem has'nt come back. Good Luck to you and hope it works!
SOURCE: I Have a 2002 blazer that starts but motor dies, surges when accelerating
If this engine is a VORTEC then you may have a problem with the internal fuel system. Under the top plenum there is a fuel reg and poppet valves that inject fuel into the cylinders. Sometimes the tubes that run fuel from the reg to the valves can leak and cause your problem. This cannot be found with pressure check because this occurrs after the reg. PS fuel mileage will go down. Let me know if this helps.Moe
SOURCE: My Mazda mx3 starts up idles for a couple seconds then dies.
Before you replace the fuel pump, I would check the cheaiper parts first. Such as fuel filter and injectors.
663 views
Usually answered in minutes!
×