Question about 1991 Ford F150
Wants to stall as I am driving down the road
Posted by Anonymous on
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Posted on Jan 02, 2017
Is it a Diesel?
Camshaft position sensor recall may cover it.
Gas or Diesel:
Fuel Pump and/or relay.
Engine codes could help if Check Engine Light is on.
Posted on Aug 06, 2008
Have you had the check engine light read with a scanner yet? It could freatly help me diagnose this for you.
If you haven't, you can stop by most shops and have it done (it doesn't cost too awful much anymore). Or, you can buy a cheap scanner from any auto parts store (the cheaper the unit the less info it gives, but its helpful nonetheless), Or, you can swing by AutoZone or another part store that offers diagnostic scanning nfor free.
Or, you can try this:
Turn the ignition switch to the on position (without engaging the starter). Immediately after, turn the switch off, on, off and then on. Now, observe the check engine light.
The check engine light should begin to flash a series of codes. The flashes will be separated by short and long pauses. The long pauses separate the "ones" and "tens" positions, and each code from the next.
For example, for a code 55, you'll see the check engine light flash five times, followed by a short pause, then it will flash five more times. It usually repeats the code reading three times. Then, it will move to the next code.
Watch the following video for an example (a code 55 will be displayed at the end of the test).
I'll be near my computer for most of the day. Let me know what you get for codes. I suspect that it is going to be a fairly simple fix (probably the throttle position sensor or the vehicle speed sensor).
Posted on Jan 16, 2009
The ignition module is held on to the distributor by two 5.5mm bolts, but there is a tool for getting those bolts out. And you're right they are prone to failure.
Posted on Apr 04, 2009
I had the same issue i changed the fuel fillter it was a little dirty but not bad. Still had problem then i cleaned out the throtel it worked good for a while. Ended up replacing the throtel its about $250 if you do it yourself which is not hard to do. The problem is the electronic throtel control but you have to replace the whole thing not sold seperatly hope that helps. Been running great did that 15,000 miles ago.
Posted on Feb 06, 2010
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