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Burner · 06-17-2022, 10:09 AM

2016 New mar Baystar Sport
Ford F53 Chassis - Triton V10

After towing our trailer, up the hills from San Diego to Temecula (2 hour drive) I ran into an issue of the transmission staying in first gear.

I wasn't pulling the trailer.
The only way I can describe it is that either it popped back into neutral, or it wouldn't come out of first gear. like a slipping clutch or similar I guess.

I pulled over, made a few calls, found a place to get her in and drove there with no issue.

AAMCO did an inspection and diagnostic on the tranny
No codes.
No issues
Oil was clean.

She has been driving strong ever since.

Any ideas?

Soppy · 06-17-2022, 12:03 PM

Could be a computer glitch or a speed sensor. Had the same thing happen on my ford explorer . I continued driving to a shop, then shut down the engine for a couple of minutes and restarted it . Worked flawlessly for the next 200k miles.
My Mercedes does it every few months , stays in low or high gear. I just pull over and turn the engine off then on and I'm good for another few months. No codes active or stored.

avfordguy · 06-26-2022, 11:55 PM

Its called cooling fan clutch roar, common on ford F53 and E450's , when coolant temp hits a certain point the fan clutch ( for the radiator) goes from slipping to full engage and the radiator fan roars and will drown out the radio and it souns like transmission is slipping. It just doing its job.

hohenwald48 · 06-27-2022, 06:18 AM

If you drove somewhere stuck in first gear it must have taken forever. I don't think you can do more than about 5 MPH in first.

LETMGROW · 06-28-2022, 01:18 PM

Quote:

Originally Posted by Burner

2016 New mar Baystar Sport
Ford F53 Chassis - Triton V10

After towing our trailer, up the hills from San Diego to Temecula (2 hour drive) I ran into an issue of the transmission staying in first gear.

I wasn't pulling the trailer.
The only way I can describe it is that either it popped back into neutral, or it wouldn't come out of first gear. like a slipping clutch or similar I guess.

I pulled over, made a few calls, found a place to get her in and drove there with no issue.

AAMCO did an inspection and diagnostic on the tranny
No codes.
No issues
Oil was clean.

She has been driving strong ever since.

Any ideas?

When you pulled over to make a few calls did you shut the engine off?