Second attempt for help
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New User
Joined: Jan 2004
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Second attempt for help
Hello All sorry about a repeat on this request but I need some help before I start throwing money at this truck!
I have a 87 f150 owned since new. have 180,000 miles and normally runs great. Just recently while driving home from work, truck got to normal operating temp and about 30 miles into drive the truck stalled. Pulled over to the side of road sat for a few minutes and restarted just fine and continued home.
What I have done:
Changed Fuel filter, plugs, aircleaner (needed it anyway). I did change the TPS about 2 years ago due to it surging at speed. After changing these items let truck get hot again by driving around in neighborhood and let sit idle in driveway for about 30 minutes. Backed out of driveway and the engine started surging and acting like it wanted to stall once put in drive. It did not completely stall but was able to get it back in drive way.
Any and all recomendations would be appreciated !!
Thanks,
Dave
I have a 87 f150 owned since new. have 180,000 miles and normally runs great. Just recently while driving home from work, truck got to normal operating temp and about 30 miles into drive the truck stalled. Pulled over to the side of road sat for a few minutes and restarted just fine and continued home.
What I have done:
Changed Fuel filter, plugs, aircleaner (needed it anyway). I did change the TPS about 2 years ago due to it surging at speed. After changing these items let truck get hot again by driving around in neighborhood and let sit idle in driveway for about 30 minutes. Backed out of driveway and the engine started surging and acting like it wanted to stall once put in drive. It did not completely stall but was able to get it back in drive way.
Any and all recomendations would be appreciated !!
Thanks,
Dave
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Thanks All that replied - Since i have to go out of town for a couple of days I just dropped off the truck at my local indy. They are going to run a full diagnostic on the ignition and fuel delivery system. I normally would have thron the above suggestions at it but my daughter (16) is learning to drive and will be driving this truck.
Thanks again for your help
Dave
Thanks again for your help
Dave
Senior User
Joined: Sep 2007
Posts: 336
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From: Iowa
Personal experience with Fords leads me to first suspect the TFI. They like to act up when hot. Particularly irritating to diagnose because once cool, they work fine (for awhile anyway). Normally show themselves by working flawlessly until you pull into a parking lot somewhere (late at night when the parts stores are closed) and vehicle won't restart when you go to leave. Before tossing the part at it, would agree with checking other stuff, like fuel pressure and also connectors, etc in the ignition wiring harness for loose, corrosion or whatever. When you do replace it, be sure to apply the dielectric grease liberally and evenly on the back of it. Also, save yourself alot of hassle and buy the $12.00 tool to remove it! The openings in the body of the module to access the mounting points is just small enough that a standard socket won't fit in it!
Just caught last reply...sometimes you just have to have someone else take care of stuff...oh well, maybe someone else will benefit from the info...
Just caught last reply...sometimes you just have to have someone else take care of stuff...oh well, maybe someone else will benefit from the info...
Thread Starter
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New User
Joined: Jan 2004
Posts: 6
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Hey All,
Thanks for all of your recomendations. Yeah, I gave up and let my local indy diagnose it. But thats all he did! Came back with the in tank fuel pump and the hi pressure fame mounted pump being bad. The pressure would maintain 42 psi until hot then just drop off to less than 22 psi. Picked up the parts this afternoon and will be cahnging out tomorrow. Afterwards i will let get hot again and see what happens. It sounds like the TFI may be next just as a precautionary measure since daughter will be driving!! I'll keep ya'll posted!
Thanks
Dave
Thanks for all of your recomendations. Yeah, I gave up and let my local indy diagnose it. But thats all he did! Came back with the in tank fuel pump and the hi pressure fame mounted pump being bad. The pressure would maintain 42 psi until hot then just drop off to less than 22 psi. Picked up the parts this afternoon and will be cahnging out tomorrow. Afterwards i will let get hot again and see what happens. It sounds like the TFI may be next just as a precautionary measure since daughter will be driving!! I'll keep ya'll posted!
Thanks
Dave
