Tire pressure readings not accurate

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1500Hoosier

Junior Member
Joined
Mar 2, 2023
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Location
Northern Colorado
Ram Year
2021
Engine
Hemi 5.7 MHEV
2021 1500. The tire pressure per tire indicator on the dash is 6-7 pounds more than is in the tires. I have checked the tire pressure in each tire with two different PSI tools. Pressure in each tire is 36 PSI. The dash has one tire at 41 PSI, one at 43 PSI and two at 44 PSI. This is somewhat new. Each tire was a little low in pressure. I filled each tire to 36 PSI but now the PSI readings are not accurate... Thoughts/Suggestions?
 

turkeybird56

Military Vet 1976-1996 Retired US Army
Air Force Army Law Enforcement
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Location
Central Texas
Ram Year
2019 Bighorn, 4 X 4, 3.21 rear, Bright Flame Red Pearl Coat, Mopar tonneau cover,Westin Bed rug
Engine
Hemi 5.7
Yup ref sun. All my tires are at 38.1 or 38.2 lbs psi (by gauge). But depending upon temps, sun etc, I get 2-4 psi difference. Run for awhile and they all go up/down to 41/42 depends on sun, heat and travel distance. Yup TPMS close. Good fer a warning but not accurate but close. Why I do checks on all fluids etc bout every 2 weeks.

All above IMHO only.
 
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