Truck slowed down the died going down the road
30

Asked by GuruK6QV May 13, 2017 at 05:51 AM about the 1988 Ford F-150 XLT Standard Cab LB

Question type: Maintenance & Repair

OK I was driving down the hwy and had my cruise
control on like I do every day and ive been hearing
a small huming noise lately not loud but real soft I
was thinking it might have been the radio but I
know this wasn't what caused my problem. I was
going down the hwy doing about 65 mph when I
felt my truck bump like someone taped the brake
real fast and let off my truck started to gradually
slow down even if I was pushing on the gas it
didn't go any faster it finally came to a stop my
lights dimmed then the truck died. I sat puzzled
thinking it might be the altenator but I started it
with the key gave it a little gas and it started back
up. It was changing gears while going down the
road so I don't think it's my transmission  and I
don't think that would cause a truck to die
completely. But I anyways I drove a few more
miles and it did the same thing again. I made it
home checked the engine nothing smoking or
burning. And checked underneath the truck
nothing leaking. I even hooked up my obd1 and it
gave me the code 11 everything's ok. So Im not
sure what it is could an alternator do this or a
starter?? Any help would be greatly appreciated.

2 Answers
74,270

OJ answered 7 years ago

In the no start condition, you can check if there is a no spark condition at the coil with a multi-meter while the engine cranks. No spark = problems with the module or other components. There are probably a lot of videos on how to check these related components. Replacement modules are usually tested/built to several hundred duty cycles between minus double digit temps to over a 100 degrees Celsius. As "Tennis" indicated, they are prone to head related failure.

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30

GuruK6QV answered 7 years ago

Everything their checked out fine also I had the battery and altinator tested just in case and they were OK. It all started when I switched to my rear gas tank the tank is brand new and none of the Lines are kinked however I did notice a canister leading to the fuel filter the fuel filter is brand new but the canister is where the humming noise is coming from I switch to the front tank and haven't had any problems and the humming noise goes away until I switch back to the rear tank then it does the same thing as from my previous post. I'm thinking it has something to do with that canister.

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