I have an E150 302 that had had a tune up recently.

We went from winter to summer in 1 day this week and I am experiencing a problem I have never had before.

When the truck is fully warm (not just as it is fully warm , I ran it an hour or two fully warm without incident) it will suddenly surge, stumble, run poorly and die. Die within seconds of the first symptom. Poorly means surging and dying until it stalls and cannot be restarted, It will catch and stumble (like it’s not getting gas) or not start at all.

If I wait 20 mines to half an hour it will run ok.

This started 2 days ago and it died 3 times yesterday including once AFTER changing the fuel filter (which was dirty).

It can run for 2 hours without stalling or 30 mins, but it seems to be quitting after running for less time.

Someone told me it sounds like an electrical pump or component(fuel pump, coil, ignition module) but that running a scanner would not show this and that the only way to diagnose it might be to try changing parts.

I do not want to change parts without knowing what is wrong.

Need some advise.

Have a mechanic friend who said to leave it at his house for the weekend so he could drive it and get it to fail and then he might be able to tell what is wrong. Any other diagnostic method to follow.

 

Since it seems to be heat related Id lean more toward the TFI Module being the problem . How many miles on your van ? What all was done when the tune up was done ? When it misses & dies do you see any black smoke or smell fuel ?

 

Tuneup was done in fall along with intake manifold gasket replacement. Replaced wires, plugs, cap, rotor, thermostat (its a ford thermostat and runs hot, temperature sensor.

I have not seen if there is any smoke when it dies, I smell gas I think when I try to restart and it fails. If I wait I dont smell any.

Another problem is that its supposed to cool off, today is not as hot as the last 2 and by the weekend its cooling down a lot.

Since its died on me I'm afraid to drive it, and afraid to have someone I don't trust look at it (garages are going crazy here since it heated up so suddenly).

How do you diagnose an id lean problem? Scanner or experience? I can leave the truck at my friend's house for the weekend except it will not be hot outside and he has alot of equipment but not a scanner. He's a certified mechanic for a big garage.

A local garage has offered to test it, he has a scanner, but I dont know the guy and he was saying it could be 4 or 5 things and the only way to tell was to try changing stuff. I do not like this approach, although I have not let him have a crack at it.

 

I'm sorry, I did not read your reply correctly. You said to look at the TFI module. Id lean was I'd lean (my bad---dummy here obviously)

 

>I have an E150 302 that had had a tune up recently.
>
>We went from winter to summer in 1 day this week and I am
>experiencing a problem I have never had before.
>
>When the truck is fully warm (not just as it is fully warm ,
>I ran it an hour or two fully warm without incident) it will
>suddenly surge, stumble, run poorly and die. Die within
>seconds of the first symptom. Poorly means surging and
>dying until it stalls and cannot be restarted, It will
>catch and stumble (like it’s not getting gas) or not start
>at all.
>
>If I wait 20 mines to half an hour it will run ok.
>
>This started 2 days ago and it died 3 times yesterday
>including once AFTER changing the fuel filter (which was
>dirty).
>
>It can run for 2 hours without stalling or 30 mins, but it
>seems to be quitting after running for less time.
>
>Someone told me it sounds like an electrical pump or
>component(fuel pump, coil, ignition module) but that running
>a scanner would not show this and that the only way to
>diagnose it might be to try changing parts.

wow, 2 posts in a row with seemingly the same problem - the guy with the post just above you is having the same problem sounds like. my guess is the same - fuel delivery problem when hot. i had a problem the same once and it was vapour lock. your fuel line/system might be too close to a heat source and this is boiling the fuel in the line. the fuel pump can only pump gas not vapour and so it seems to run out of gas. when it cools down - no problem. try tracing your fuel liens and see if they need to be insulated from a heat source.

cheers,

Rusty




>
>I do not want to change parts without knowing what is wrong.
>
>Need some advise.
>
>Have a mechanic friend who said to leave it at his house for
>the weekend so he could drive it and get it to fail and then
>he might be able to tell what is wrong. Any other
>diagnostic method to follow.

 

 

It got cold again after 2 days of summer weather and the truck runs fine.

Dealer says many cars here experienced the same thing and that the problem was "winter gas" being too volatile for such hot temperatures.

Dealer said he has never heard of a recall in Canada for the TFI module (or ICM) and that could not be the problem.

Since the van runs ok now I may wait and see.

 

I have a 1989 Ford Van 5.0 and am having the same problem.
Runs fine when cold or on a cold day. When the weather is 70 or above and the motor warms up it dies. Plenty of fuel pressure, no spark or weak spark present. Will start back up after a few minutes and die again.
Replaced ign. module, coil, pick up coil, air charge sensor, temp sensor... what else????
Someone said to try ECT sensor or O2 sensors?
I am totally lost on this one.
help, help, help.

 

Had the same problem on my 1988 F-150. Only in hot weather on the rear tank. The only problem in my advise is that I did two repairs at the same time. Go with the easier one first. Check the wire connections that go into the fuel pump relay, they might be bad, and lose contact when the engine compartment gets hot. If the wire is bad it will not carry the current when it heats up. I also changed my rear tank pump. Sorry, I don't know which one fixed the problem. After I changed the pump,I saw the wire was bad.

 

I have this same problem with a 1998 E150
Did you ever figure out what was causing this?

 

I have the same issue. Did you ever find a solution?