Weird engine cutting out question
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Weird engine cutting out question
1994 f150 4x4 5.0 manual.. My speedometer quit about a week ago for some reason and my ABS light is on and now when im driving down the road my truck will randomly cut out and back in just randomly all the time. Anyone know why?
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Joined: Jun 2011
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From: Milford, CT
ABS and spedo use the same sensor and a module to split the signal, the engine problem is probably unrelated. Check your grounds. All of them. Also take a look at all of the connectors in the ignition system, and pull codes. My coil connector plug was fouled a while ago, did the same thing, $11 at napa for a new one.
-Mike
-Mike
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Joined: Mar 2002
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From: Bonita Springs FL
Does it happen while it's not moving? Should be pretty easy to narrow down if it does.
The speedo/ABS light could either be the wiring to the VSS on the rear axle or the PSOM inside the dash cluster. Probably the PSOM but with the other problems you have, it could be wiring.
The speedo/ABS light could either be the wiring to the VSS on the rear axle or the PSOM inside the dash cluster. Probably the PSOM but with the other problems you have, it could be wiring.
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Joined: Jan 2007
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One thing I try to do when an engine is quitting or missing real bad, is figure out if it's an ignition problem or a fuel delivery problem. If you have a tach, or if you can rig one up so you can SAFELY see it while you are driving, it will tell you which it is. If the problem is ignition, the tach will drop like a rock and then jump back when the engine starts back up. If it's fuel related, the tach will drop slowly as the engine speed drops off. Hope this helps.
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its literally split second when it dies and then comes back, the tach isnt even fast enough to catch it.
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From: Calverton
I had this happen not long ago, steady throttle, around 35 mph. Would happen once or twice during trips around town running errands. I cannot say with certainty what cured it, because I did alot of work on this truck the last couple of months. I would guess that of all the items that I replaced, that one of these four, were most likely the cause of that particular problem, listed in high probability culprit order: installed a new distributor & shined up block contact area to insure a good ground. Re-manufactured computer, new coil, new ignition switch.
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