why wont my truck stay running?

10

Asked by Nov 21, 2013 at 11:51 AM about the 1990 Ford Bronco

Question type: Maintenance & Repair

I have a 1990 ford bronco with a 5.0 fuel injected and it will not stay running on its own and sometimes the fuel pump will not engage like it should. ive replaced the idle air control valve and it didnt really make much of a difference. what do i do its my only truck

3 Answers

286,805

"the fuel pump will not engage like it should", are you saying you don't hear the pump prime when you turn the key?

10

i dont hear it prime sometimes

1 people found this helpful.

oooo again it seems to be my lot in life....the black battery cable has a clamp end and a loop end....take the bolt off the loop end and wirebrush it...the chassis tooo....and where the 1/0 cable connects to the engine block too, to insure a steady 12 volts and three hundred or more cold cranking amps~...this way the fuel pump relay will have 12 volts to make the contacts happen....the ignition relay will be happy now that it has steady 12 volts~....get a NEW battery these start to NOT take a charge 10% per year- --(according to NM Qureshi, battery engineer of 40 years){interstate battery}

1 people found this helpful.

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