1991 f150

Asked by Willieb211 May 14, 2015 at 09:41 PM about the 1991 Ford F-150 XLT Lariat LB

Question type: Maintenance & Repair

I have a f150 that will start run and
drive but once u give it more than
quarter throttle it will loss power and
start to spit and sputter after awhile it
will shut off and u have to wait 30min
or so to start it again. I just put a new
fuel pump and filter in it new spark
plugs, wires are only year old also
newer air filter as well. I'm out of
ideas on what it could be can u
help......also the A.I.R. rail broke but
has been fixed. It was driven while
broke just 15 mins to bosses house
than back home for like a week while
rail was broke could this have
messed something up if so how do I
fix?

2 Answers
3,765

Randy answered 6 years ago

I had a Mercedes that did that to me! It ran GREAT for a few miles and then it would just shut down on me at red light/ stop signs. I over looked my fuel relay. Fuses and relays when they are near a warm motor, heat and wires do not mix. I am not an expert on foreign cars but guessed it was the fuel relay, and replaced it. It drove just fine afterwards

Mark helpful

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