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tire pressure monitor

995 views 6 replies 6 participants last post by  wheatbackdigger 
#1 ·
was wondering how accurate is the stock tire pressure monitoring unit?

mine seems to fluctuate a little? is this normal? I guess it has to do with
the heat of the tires? thanks :worthy::worthy:
 
#3 ·
My EVIC reads about 3 psi high compared to a pretty good hand held pressure gauge.

As mentioned above, it's normal for them to fluctuate.

One interesting thing I've noticed is that when I park with one side of the Jeep facing the sun for a few hours, and then check the gauge when I when I start up, the sun side tires are a PSI or so higher than the shade tires due to the heat. :)
 
#5 ·
My dash pressure readings seem pretty accurate, seems to match this gage very closely. JACO Elite Tire Pressure Gauge - 60 PSI https://www.amazon.com/dp/B010A6B6KG/ref=cm_sw_r_cp_tai_5mVtzbPSKEFWS
I've found a lot of variation between cheap pressure gage's that I buy at Walmart etc. and I searched for one that claimed a high degree of accuracy and found that one. Tire pressure fluctuates a lot more with larger tires, both with outdoor temperature and driving, sun or shade side of the vehicle too.
 
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