1986 F150 Problems
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Joined: Oct 2006
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1986 F150 Problems
Truck Experts
I am having problems with my 86 Ford F150 gas engine, 2WD, auto trans, original miles of 88,000. It will idle -high and low - in park and for an extended period of time. As soon as I put it into gear, it will die out within five or six seconds.
Any ideas of what could be wrong? Thanks for your help in advance.
Kevin
I am having problems with my 86 Ford F150 gas engine, 2WD, auto trans, original miles of 88,000. It will idle -high and low - in park and for an extended period of time. As soon as I put it into gear, it will die out within five or six seconds.
Any ideas of what could be wrong? Thanks for your help in advance.
Kevin
Cargo Master
Joined: Apr 2003
Posts: 2,408
Likes: 5
From: Parkesburg PA
1st Scan the computer then report any codes. I'm assuming it's the EFI 302 as that is the only way they were offered. If it's been converted to carb let me know. http://fordfuelinjection.com/?p=13 The connector is behind the battery on the passenger side of the engine compartment.
It sounds like a bad IAC (idle air control), however I've seen similar problems from a bad TPS (throttle position sensor).
Also the passage in the intake sometimes gets clogged with carbon. If you take the IAC off you should be able to see the passage. Clean it out if it's clogged.
This is a pretty common problem. If you use the search function you can search for Bad Idle, or Idle problem.
It sounds like a bad IAC (idle air control), however I've seen similar problems from a bad TPS (throttle position sensor).
Also the passage in the intake sometimes gets clogged with carbon. If you take the IAC off you should be able to see the passage. Clean it out if it's clogged.
This is a pretty common problem. If you use the search function you can search for Bad Idle, or Idle problem.
