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Old 12-10-2015, 04:31 PM
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TPMS sensors not reading at high speeds / max PSI range WK2

I put on 2012 Sahara 18" wheels on my 2014 WK2 Overland V6. I'm running BFG KO2's 255/70R18.

I bought Dorman part # 974-043 for the TPMS sensors.

I've been having two issues.

1) I've been told by Dorman and Farm and Fleet that Chrysler has a set range for the sensors. They don't know what it is though. My KO2's can take 65PSI. While Dorman said their sensors can handle high pressure, they confirmed I'll get a warning light if I go higher than 36psi. I tried it and sure enough, tire pressure light comes on (I tried 45psi). What I don't understand is that I've had the stock 20's up this high without issue.

2) While at 36PSI and driving on the highway, 3 of the 4 sensors stop reading and I get the tire pressure light. I've had them reset twice by Farm and Fleet and they still stop working while going above lets say 55mph.

Does anyone know the max PSI range for WK2 TPMS sensors?

Any thoughts on why 3 of the 4 sensors stop working at high speeds?

I'm about ready to remove them and just drive around with the light on.
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Old 12-10-2015, 08:38 PM
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Re: TPMS sensors not reading at high speeds / max PSI range WK2

No idea, but why in the world do you want to run your tires at 65psi?
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Old 12-10-2015, 08:41 PM
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Re: TPMS sensors not reading at high speeds / max PSI range WK2

I want to run more than 36psi. I figure around 45-50psi I'll feel more bumps, but also get better MPG having the tires more firm.
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Old 12-10-2015, 10:35 PM
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Re: TPMS sensors not reading at high speeds / max PSI range WK2

You'll also get less miles out of your tires and decreased braking performance. Seems really unsafe to me for very minimal gain.
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Old 12-11-2015, 07:47 AM
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Re: TPMS sensors not reading at high speeds / max PSI range WK2

Your OEM pressure recommendation should be 36psi for front and rear tires. I may be wrong, but I believe 28psi is the low side and 45psi is the high side. I've installed quite a few Dorman sensors without any issue. With 13 & up WK2's, they did change a few things which could cause some compatability issues with aftermarket pressure monitors. It sounds to me like there is an ID mismatch between one or more of the sensors. It can cause weird gremlins.
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Old 03-15-2016, 11:54 PM
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Re: TPMS sensors not reading at high speeds / max PSI range WK2

I just had Yokohama Geolander A/T-S tires installed on my 2011 Limited, because they are 6 plys, we run them at 40PSI, my TPMS system shows them at 39, but no issues and no warnings the speed limits around here go to 80 MPH, and I tend to drive a little faster.
Great tires, had them on my old Explorer on trails, in mud and snow, never a problem and wore like iron.
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