Temp Sender - PowerStrokeNation : Ford Powerstroke Diesel Forum
 
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post #1 of 7 (permalink) Old 04-21-2010, 06:26 PM Thread Starter
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Temp Sender

I just put in a rebuilt transmission and as soon as i put it into gear the OD flashes. I pulled a high temp code with the scanguage. I know its not hot because the truck has only been running for a minute. When I go to trans temp on the scanguage its bouncing everywhere from 68 to 300 degrees and everywhere inbetween. Is there something i can replace to fix this? Does it put the trans into limp mode or something? Any help is appreciated.....Chad

Back to stock for now.

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post #2 of 7 (permalink) Old 04-21-2010, 07:51 PM
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Re: Temp Sender

I believe the factory trans temp sender is in the internal wireing harness. With it bouncing like that I might be thinking a bad connections. Unfortunately I am not at home with my wiring book so I cannot get you pointed on which wire to look at. I might just start with any connections that were messed with in the R and R of the trans.
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post #3 of 7 (permalink) Old 04-21-2010, 11:21 PM
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Re: Temp Sender

sounds like airlock, the air is passing by the sensor giving a false high reading

you sure you have the correct fluid level? let it idle in each gear position and then check the level while running in park.

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post #4 of 7 (permalink) Old 04-21-2010, 11:27 PM
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Re: Temp Sender

you want to check it with the trans in neutral

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post #5 of 7 (permalink) Old 04-22-2010, 02:56 AM
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Re: Temp Sender

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Originally Posted by Phiber Optik View Post
sounds like airlock, the air is passing by the sensor giving a false high reading
No, that's not possible.

There is an electrical issue with the sensor or the wiring to the sensor.
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post #6 of 7 (permalink) Old 04-22-2010, 04:22 PM Thread Starter
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Re: Temp Sender

Will the high temp reading put the trans into limp mode? I have a new temp sender for my analog guage on the way from Summit so I will be able monitor temps that way.

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post #7 of 7 (permalink) Old 04-22-2010, 05:37 PM
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Re: Temp Sender

Not positive but I think that can put the trans into limp mode. It is something that you have to fix as I also think there is warm and cold shift strategy. I would see if I could find some diagrams so I could start ohming out some wires or just get a new internal harness and try that.
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