False Indication Of Low Tire - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Robersabel · 06-18-2010, 02:58 PM

Last week received master caution light with indicator revealing right rear tire approximately 23 to 27 psi. It fluctuated. Took vehicle to Chevrolet garage. Worked ok until today. Same indication.

Had nitrogen serviced several months ago.

Robert

Eric Baker · 06-18-2010, 07:42 PM

Did you check the pressure with a gauge?

firestone_ss · 06-18-2010, 10:43 PM

just curious but are the tpms sensors calibrated for nitrogen?That is to say what effect will the gas have on the internal parts of the sensor?

Robersabel · 06-20-2010, 11:36 AM

Did not check pressure with gauge. Seems I should have. After indicator showed pressure increasing, and decreasing I believed it was not low.

Second visit to dealer revealed "a screw in tire."

No idea what caused increase in psi indication.

>at is to say what effect will the gas have on the internal parts of the sensor?

Good question.

Robert

Eric Baker · 06-20-2010, 01:22 PM

The gas will have no effect on the sensor. Regular air is already ~78% nitrogen.

SILVER BULLITT · 06-20-2010, 09:31 PM

MY FRONT LEFT IS SAYING THAT MY SENSOR WENT BAD ??? ANYONE DEAL WITH THIS YET ?

Texhawk · 06-22-2010, 08:04 PM

Quote:

Originally Posted by Robersabel

Did not check pressure with gauge. Seems I should have. After indicator showed pressure increasing, and decreasing I believed it was not low.

Second visit to dealer revealed "a screw in tire."

No idea what caused increase in psi indication.

>at is to say what effect will the gas have on the internal parts of the sensor?

Good question.

Robert

If the increase pressure due to temperature rise of the tire as you drive it exceeded the small amount of air leaking due to the screw, you could see a temporary increase in pressure. When the tires get to operating temperature, then the leak would cause the pressure to drop again.

Always check your tires with a pressure gage. TPS are not a substitute for a gage to keep the correct tire pressures.

mjvazquez70 · 06-22-2010, 08:36 PM

So my Cammy came with green-tipped tire caps. Does this mean that I have nitrogen in these tires? (I pre-ordered my Cammy...never mentioned to anyone that I wanted nitrogen, but then again, I never told anyone that I didn't want it either).
Second Question: Did yours come with green-tipped tire caps too from the factory?

06-18-2010, 02:58 PM	#1
Robersabel Drives: 2LT Join Date: Apr 2009 Location: AZ Posts: 41	False Indication Of Low Tire Last week received master caution light with indicator revealing right rear tire approximately 23 to 27 psi. It fluctuated. Took vehicle to Chevrolet garage. Worked ok until today. Same indication. Had nitrogen serviced several months ago. Robert

06-20-2010, 11:36 AM	#4
Robersabel Drives: 2LT Join Date: Apr 2009 Location: AZ Posts: 41	False Indication Of Low Tire Did not check pressure with gauge. Seems I should have. After indicator showed pressure increasing, and decreasing I believed it was not low. Second visit to dealer revealed "a screw in tire." No idea what caused increase in psi indication. >at is to say what effect will the gas have on the internal parts of the sensor? Good question. Robert

06-20-2010, 09:31 PM	#6
SILVER BULLITT Drives: 2010 SIM 2SS/RS MONSTER Join Date: Aug 2009 Location: LOS ANGELES Posts: 1,506 View My Garage	MY FRONT LEFT IS SAYING THAT MY SENSOR WENT BAD ??? ANYONE DEAL WITH THIS YET ? __________________ HP MONSTER' SOUTHERN CALIFORNIA BUILT, LMR CAI, CUSTOM GRIND CAM, CUSTOM BUILT CNC PORTED AND POLISHED HEADS, FAST 102MM INTAKE MANIFOLD,ARH LONG TUBES AND HIGH FLOW CATS, BIGGER INJECTORS, VALVES SPRINGS RETAINERS, MGW SHORT SHIFTER, EIBACH SPRINGS, FACTORY CHROMED WHEELS, BLACKED OUT EMBLEMS, BLACKED OUT ROOF,BLACKED OUT MARKERS, 3.5 INCH ELECTRONIC CUTOUTS, FLOWMASTERS, ZEX WET 150 SHOT, FOR A GRAND TOTAL OF =630 REAR WHEEL TORQUE ,AND 600 REAR WHEEL HORSEPOWER MY JOURNALhttp://www.camaro5.com/forums/showth...02#post2023802 SOON TWIN TURBO SETUP

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06-18-2010, 07:42 PM	#2
Eric Baker Drives: Black/Black 2SS/RS 6M Join Date: Mar 2010 Location: Boston MA Posts: 987 View My Garage	Did you check the pressure with a gauge?

06-18-2010, 10:43 PM	#3
firestone_ss Drives: 2010 camaro ss Join Date: May 2009 Location: Tacoma WA Posts: 779	just curious but are the tpms sensors calibrated for nitrogen?That is to say what effect will the gas have on the internal parts of the sensor?

06-20-2010, 01:22 PM	#5
Eric Baker Drives: Black/Black 2SS/RS 6M Join Date: Mar 2010 Location: Boston MA Posts: 987 View My Garage	The gas will have no effect on the sensor. Regular air is already ~78% nitrogen.

06-22-2010, 08:36 PM	#8
mjvazquez70 Drives: 2010 Camaro, Jewel Red 2LT/RS/GrPkg Join Date: Nov 2009 Location: Orlando, FL. Posts: 3	So my Cammy came with green-tipped tire caps. Does this mean that I have nitrogen in these tires? (I pre-ordered my Cammy...never mentioned to anyone that I wanted nitrogen, but then again, I never told anyone that I didn't want it either). Second Question: Did yours come with green-tipped tire caps too from the factory?