Help Truck turns off while driving
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Help Truck turns off while driving
Changed two sensors do not know what it is. I am going to change all the ignition such as spark plug wires and rotor and distrubitor cap this weekend. Well be driving and just cuts off wait a couple of minutes and turns back on. Then will not do it for a couple of days. What do you think it is I need suggestions. It is a 1996 5.8
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1. Pull codes
2. Pull codes
I chased that problem for about a year. Your 1996 has different sensors and emissions than previous EFI. It would take many many pages for the story but i I were you I would start with oxygen sensor. Here is why...the first thing I did was replace the air inlet tube with one from a 460 to "give it more air". Then after ignition control modules (3) distributors (3) coil, wires, plug, dismantling wiring harness looking for resistor which is not on my model, ECT, ACT I replaced the oxygen sensor even though there were clear codes and it ran MUCH better. However, when the cruise control let off the gas going down a hill the CEL came on. I reinstalled the stock air tube to the air box and all is well. I only buy Motorcraft sensors.
In summary, the air/fuel ratio may be it. Pull codes.
2. Pull codes
I chased that problem for about a year. Your 1996 has different sensors and emissions than previous EFI. It would take many many pages for the story but i I were you I would start with oxygen sensor. Here is why...the first thing I did was replace the air inlet tube with one from a 460 to "give it more air". Then after ignition control modules (3) distributors (3) coil, wires, plug, dismantling wiring harness looking for resistor which is not on my model, ECT, ACT I replaced the oxygen sensor even though there were clear codes and it ran MUCH better. However, when the cruise control let off the gas going down a hill the CEL came on. I reinstalled the stock air tube to the air box and all is well. I only buy Motorcraft sensors.
In summary, the air/fuel ratio may be it. Pull codes.
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Same problem, different truck...I have an 82 with a 93 351w, still has the serp belt but has been converted to a carb motor with a 4bbl. It stalls randomly...but only on the highway. I had it off road for a good 4 hours today and didnt have a single problem. I got back on the highway and got up to 55 and it just died, (speed doesnt seem to be a factor, does it randomly). I have an aftermarket tach hooked to the neg coil wire, Ive noticed that when it dies, the tach drops hard to 0. even if I down shift and drop the clutch to try to push start it back up, the motor revs from the combustion but the tach stays at 0...then just as random as it shut off, it turns right back on and the tach comes to life. Somtimes I have to get all the way stopped and actually crank it. I no longer have a key start, I put the ignition on 2 15amp switches and a push start button. It had this problem before tho. No other accesories seem to be affected, radio, heater, and lights all still work when it does it.
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