Temp Sensor/AC issue question
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1st Gear
Joined: Mar 2016
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Temp Sensor/AC issue question
Hope this is the right spot, but I am looking at a 2015 z51 with an edelbrock e-force on it already. It throws code P0128, the physical temp gauge doesn't register but self tests fine. The digital gauge shows the temp properly. Seems to drive fine, took it on a pretty long test drive and noticed the AC isn't coming on. Compressor isn't kicking on, I didn't have gauges with me to verify pressure.
It seems like this is probably related to a temp sensor, but I am not familiar with the temp sensor setup on these cars. I used to be a tech and had ASE master, so I am not a complete idiot but I didn't have any tools and couldn't rack it to check much, wasn't sure if anyone had any ideas about it. I am very interested in the car but I would hate to get into it and have to spend a bunch more. It is still under warranty.
Edit: Just noticed the digital gauge is actually oil temp, so it isn't getting coolant temp readings but has oil temp and that was normal.
It seems like this is probably related to a temp sensor, but I am not familiar with the temp sensor setup on these cars. I used to be a tech and had ASE master, so I am not a complete idiot but I didn't have any tools and couldn't rack it to check much, wasn't sure if anyone had any ideas about it. I am very interested in the car but I would hate to get into it and have to spend a bunch more. It is still under warranty.
Edit: Just noticed the digital gauge is actually oil temp, so it isn't getting coolant temp readings but has oil temp and that was normal.
Last edited by rugglebum; Mar 26, 2016 at 04:02 PM.
Tech Contributor
Joined: Oct 1999
Posts: 40,995
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From: Charlotte, NC (formerly Endicott, NY)
Not sure what you mean by the physical temp gauge but maybe you mean the analog gauge below the gas gauge on the right side. Put the instrument cluster into Tour Mode and then use the steering wheel buttons to go to performance and you will see a digital display of coolant temp, oil temp, oil pressure and others will appear vertically to the right side of the digital speed reading. This is about the only setting that gives readable numbers for everything.
Bill
Bill
Safety Car
Joined: May 2000
Posts: 4,808
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From: Albuquerque NM
Hope this is the right spot, but I am looking at a 2015 z51 with an edelbrock e-force on it already. It throws code P0128, the physical temp gauge doesn't register but self tests fine. The digital gauge shows the temp properly. Seems to drive fine, took it on a pretty long test drive and noticed the AC isn't coming on. Compressor isn't kicking on, I didn't have gauges with me to verify pressure.
It seems like this is probably related to a temp sensor, but I am not familiar with the temp sensor setup on these cars. I used to be a tech and had ASE master, so I am not a complete idiot but I didn't have any tools and couldn't rack it to check much, wasn't sure if anyone had any ideas about it. I am very interested in the car but I would hate to get into it and have to spend a bunch more. It is still under warranty.
Edit: Just noticed the digital gauge is actually oil temp, so it isn't getting coolant temp readings but has oil temp and that was normal.
It seems like this is probably related to a temp sensor, but I am not familiar with the temp sensor setup on these cars. I used to be a tech and had ASE master, so I am not a complete idiot but I didn't have any tools and couldn't rack it to check much, wasn't sure if anyone had any ideas about it. I am very interested in the car but I would hate to get into it and have to spend a bunch more. It is still under warranty.
Edit: Just noticed the digital gauge is actually oil temp, so it isn't getting coolant temp readings but has oil temp and that was normal.
You can turn off that code.
