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Transmission issues E40D

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Old Aug 8, 2016 | 09:52 PM
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csmith30005
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Transmission issues E40D

I have a 1993 F250 with the IDI and the E40D transmission and occasionally it will shift at very low or high rpms and when it shifts it shifts HARD. I've owned this truck for almost 2 months and I've found the only correlation for when it acts up like this is when I park the truck in the mid day Georgia sun. I bought the truck with an already rebuilt transmission I think it's got about 6k miles on the tranny rebuild now. Any other time I drive it it shifts like a new truck. Does anyone knows what the problem could be?
 
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Old Aug 8, 2016 | 11:02 PM
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jmuenchow
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Originally Posted by csmith30005
I have a 1993 F250 with the IDI and the E40D transmission and occasionally it will shift at very low or high rpms and when it shifts it shifts HARD. I've owned this truck for almost 2 months and I've found the only correlation for when it acts up like this is when I park the truck in the mid day Georgia sun. I bought the truck with an already rebuilt transmission I think it's got about 6k miles on the tranny rebuild now. Any other time I drive it it shifts like a new truck. Does anyone knows what the problem could be?
The only thing I could possibly point you towards when it comes to the shifting at different speeds/Rpms. Would be the TPS. It is on the drivers side of the injection pump with 3 wires on it.

Here's a thread that shows you how you can test and adjust the TPS/FIPL sensor: http://www.ford-trucks.com/forums/11...ions-only.html.

Again, not sure if it will fix your problem but it is an easy check with a volt meter. Hope that helps!
 
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Old Aug 9, 2016 | 03:47 AM
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Welcome to the forum. I have a 90 f250 I am working on. I in Thomaston. Checkout the GA chapter forum
 
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Old Aug 12, 2016 | 11:28 AM
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Originally Posted by csmith30005
I have a 1993 F250 with the IDI and the E40D transmission and occasionally it will shift at very low or high rpms and when it shifts it shifts HARD. I've owned this truck for almost 2 months and I've found the only correlation for when it acts up like this is when I park the truck in the mid day Georgia sun. I bought the truck with an already rebuilt transmission I think it's got about 6k miles on the tranny rebuild now. Any other time I drive it it shifts like a new truck. Does anyone knows what the problem could be?
It started to do it all the time. In low gears it will rev back and forth and then shift eradically until it gets to a higher gear. I went ahead and ordered the TPS because I have only owned the truck for 2 months and I don't know if it has ever been replaced or when it was last replaced. The truck has around 327,000 miles but I was told a new motor was put in I think around 275,000 miles, so I'm hoping the TPS in the motor is just going out and that's it.
 
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Old Aug 12, 2016 | 03:40 PM
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You need to check for codes before wasting any more money on random parts.

Ford ? OBD Trouble Codes
 
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