trans not shifting

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Dec 28, 2024 | 04:29 PM

Janders41

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trans not shifting

Hey all I'm having an issue with my 4l60e not shifting out of first gear I was wondering if I have to tune out the abs sensors?

Dec 28, 2024 | 11:28 PM

Tranzman

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From: Roxana, IL

Quote:

Originally Posted by Janders41

Hey all I'm having an issue with my 4l60e not shifting out of first gear I was wondering if I have to tune out the abs sensors?

Shouldn't have to change any ABS readings.
1st check for codes
2nd The PCM uses the VSS, TPS & MAP/MAF to calculate shift speed and pressure rise. I would check those for proper signals...
You will also want to look at the shift commands and the transmission fluid pressure switch for each quadrants command. I have seen bad FPS command a individual gear and have 1st or 2nd gear only but always sets a code.
Keep in mind that not all scan tools will look at trans data...

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