3500 Van - Sometimes only has one gear
#1
3500 Van - Sometimes only has one gear
I have a new PCM ( had spark problem, that is now resolved )
Now, occasionally, while driving it it like it only has 2nd or 3rd gear. So I'll be going along, and it will all of a sudden be high RPM, and low gear on me. If I'm lucky, it will magically decide to be in the correct gear, and work once again.
I'm wondering if I have a partially failed sensor, or need to teach my PCM somehow, or could be PCM need to be returned for more programming.
Now, occasionally, while driving it it like it only has 2nd or 3rd gear. So I'll be going along, and it will all of a sudden be high RPM, and low gear on me. If I'm lucky, it will magically decide to be in the correct gear, and work once again.
I'm wondering if I have a partially failed sensor, or need to teach my PCM somehow, or could be PCM need to be returned for more programming.
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