Could it be the bad wheel bearings messing with the transmission?

Tiny
BEANERKAT69
  • MEMBER
  • 2008 LINCOLN MKX
  • 3.5L
  • 4WD
  • AUTOMATIC
  • 135,000 MILES
The motor had been replaced in it and about 2 months later the front tire wheel started making noise and shaking, 2 days later the transmission started slipping while getting up to speed to get on the interstate (cluster stopped registering and errored out) when I pulled over and put it in park, it was a hard shift/drop into park. Once I shut the car off and turned it back on the cluster came back and when I put it into drive it was real hard/loud shift and takes a little bit to catch if I put it into drive for it to go but if I put it down to L and start driving that way first it catches faster and is easier to go into drive from there. I was told the transmission links need to be tightened up or that I need more fluidity but was wondering if it was being caused because of the bad wheel bearings because if I don't pull over right away to fix it the low tire pressure light comes on.
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Friday, June 17th, 2022 AT 4:57 AM

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Tiny
KASEKENNY
  • EXPERT
It is highly unlikely that a wheel bearing is causing a slipping issue.

The only thing I could think would be if the wheel speed sensor was not reading correctly and that was causing a shifting issue but even with this you should have some codes.

So, if you have a wheel bearing issue then we need to address that as that could be a safety issue if that failed.

https://www.2carpros.com/articles/symptoms-of-a-bad-axle-or-wheel-bearing

https://www.2carpros.com/articles/how-to-replace-front-wheel-bearings-and-seals

So as for the transmission issue, that could be a fluid issue, but it sounds more like a possible pressure issue. So, I would suggest checking the fluid and making sure it is the correct level and condition.

https://www.2carpros.com/articles/how-to-check-and-add-transmission-fluid

I am attaching the info below from the manual on how to change the fluid. Clearly this is recommended if the fluid is not in good condition.

I would suggest we start with this and go from there.

Thanks
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Friday, June 17th, 2022 AT 7:24 PM

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