2018 lincoln mkx

Asked by GuruKBGH5 Dec 07, 2019 at 12:05 PM about the 2018 Lincoln MKZ Reserve AWD

Question type: Maintenance & Repair

I drive a 2018 Lincoln MKX. ON 3 different occasions, the left rear tire has
suddenly deflated form 35 psi to 27 pst while driving at speed limit for
approximately 30- 40 minutes. The message light comes on indicating a
need for air.  The tire also deflates slowly when the car sits for several days.
The dealer has made attempts to diagnose the problems but I am not sure
they are correct, given the number of times this has happened.

2 Answers
9,705

brotherben answered 4 years ago

You need a new tire. You can try a soapy water solution to spray on the tire and see if you can find the leak and patch it or plug it.

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157,515

James answered 4 years ago

Sounds like you have something in the tire like maybe a nail. It could be a leaking valve stem as well. If you can't find a foreign object in the tire I'd suspect the valve stem or possibly a bent wheel that's causing a leak around the bead of the tire. The bead is where the tire edge goes under the edge of the wheel. Hope that helps! Jim

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