I have two sensors that don't seem to be working, at least according to the driver information part of the guage cluster. Where are they? Can they be fixed\replaced without removing the tire from the wheel??
Tire Pressure Sensor
- Thread starter addohm
- Start date
They're inside the tire, part of the valve stem unit, or strapped inside the rim (not sure which system we use). You have to remove the tire CAREFULLY to replace them.addohm said:
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Mooseman
Moderator
Maybe it lost the communication to those two sensors. You could try the relearn process. Instructions should be in your owners manual. If they are dead, then check eBay for some replacements. Cheaper than the dealer and sometimes new take-offs.
How does one go about making this repair? Doesn't seem like a DIY kinda thing unless you just happen to have a heckuva well stocked shop.
northcreek
Member
I also have an 07 and recently had a sensor go bad due to a low battery(3v inside each sensor).I bought 4 new AC Delco sensors at Amazon, it was the best price around. I thought about eliminating them too but, then my wife was planning a long trip in the Malibu and got a low pressure alert the night before, found a screw in her tire and pictured here stranded on the thruway had we not found it in time, so now I'm a TPMS guy.
The pressure readings of the TPMS sensors is a relatively close representation of actual PSI, they are really more concerned about all being the same pressure to expose a low tire pressure.
My understanding is that when you adjust tire pressure you need to go for a drive above 20mph to reactivate the sensors, once you stop they go into a sleep mode to extend battery life...Mike.
ACDelco 25774006 Tire Pressure Sensor : Amazon.com : Automotive
As for installation...take it to a tire shop, they are too delicate and too expensive to risk a back yard repair.
The pressure readings of the TPMS sensors is a relatively close representation of actual PSI, they are really more concerned about all being the same pressure to expose a low tire pressure.
My understanding is that when you adjust tire pressure you need to go for a drive above 20mph to reactivate the sensors, once you stop they go into a sleep mode to extend battery life...Mike.
ACDelco 25774006 Tire Pressure Sensor : Amazon.com : Automotive
As for installation...take it to a tire shop, they are too delicate and too expensive to risk a back yard repair.
Mooseman
Moderator
Yeah, to replace those sensors, you have to at least break the tire bead to get to the sensor/valve to replace it. Essentially the same as replacing the valve in a normal setup.
northcreek
Member
Mooseman said:
Right...and you don't lose the balance because the tire stays on the rim so, the cost of having a garage do it is usually pretty reasonable
