Radiator temp PID

Brian Owner Ohio Posted   Latest   Edited  
Updated
Driveability
2013 Chevrolet Equinox LS 2.4L (K LEA Flex) 6-spd (6T45) — 2GNFLNEK6D6186205
Temperature Plausibility

Hello everyone, Any one seen this data PID? Is it false? I have not been able to locate the sensor or find data PID info on it.

diag​.​net/file/f3o2osxua…

I am looking at this '13 Equinox that the driver states the coolant temp gauge has gone high on occasion, and also when this happens that the cooling fan stays on when they shut off the vehicle. ECT sensor has been replaced. As of yet i am unable to duplicate concern. Verified latest calibrations / updated ECM TCM BCM and IPC. No Codes in any module​.​Relay 1 &2 can be commanded on and off, Coolant level is good. Its a warm day up here in Cleveland driving / ac on not able to get it to overheat, wiggled the ETC harness etc no prob found yet.. I am just more curious about that data pid.. Thanks for all the help!

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Caleb Technician
Indiana
Caleb Default
 

This car doesnt have a Radiator Coolant Temp sensor per GM SI. However some GM cars do so this would be a PID for ones that do. I would be looking at the AC pressure sensor skewed high at times , say 300 plus psi. Something I have seen several times which will cause the same symptoms. Also make sure there is no corrosion in the ECT sensor connector.

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Brian Owner
Ohio
Brian Default
   

Thanks Caleb, Currently A/C pressure is well withing spec, however will be on the look out for that PID as well if we can duplicate concern. Will check ETC for corrosion as well. I am not with vehicle ATM. We are going to verify all temps are close to each other after cold soak over night before starting. I am thinking we may have a air pocket or head gasket problem. I just was made aware by…

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Rob Owner/Technician
British Columbia
Rob Default
 

Along with the thermostat and ECT sensor I would ask if they where OE, I've seen lot of cases where a none OE part was installed and it is now the real problem.

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Brian Owner
Ohio
Brian Default
 

Will do! thanks Rob

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Geoff Diagnostician
Hawaii
Geoff Default
 

Caleb, since the screen shot is there, can you give us any insight (also) into the THREE different IAT listed? I know on the old Ford NGS it would often list sensors that only some models had, is this common with GM GDS2?

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Caleb Technician
Indiana
Caleb Default
 

Shoot I forgot you Geoff. I'll get back to you on that.

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Glen Owner/Technician
Illinois
Glen Default
 

I would graph the ECT if possible.

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Hollis Technician
Colorado
Hollis Default
 

Monitor ECT with the scanner while driving. See how much the temp varies. If it stays towards the upper end of normal operating temperature its possible restricted radiator cooling fins or internal restriction. If possible get an infrared image of the radiator, relatively cool vs at operating temperature. Cooling fans staying on may indicate radiator is not dissipating heat. When the radiator…

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Brian Owner
Ohio
Brian Default
 

126,000 miles on the clock. The air off the radiator is hotter than a tropical breeze for sure, lower hose Ok to touch / hold , upper is hot. I will get back to vehicle and drive tomorrow am w/ scanner on it. more info: Timing chain done recently.. ( more info as i am leaving LOVE IT)

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Hollis Technician
Colorado
Hollis Default
 

…gt;Timing chain done recently... Oh boy ! Excess RTV ? How many miles since ? >( more info as i am leaving LOVE IT) You may have to waterboard this customer to get all the details :O) Any idea why the T-chain was replaced ? Check the coolant consistency and correct type. Heater hose temps ? Can you verify if the water pump is turning ? Check air seals and baffles that direct air…

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Eric Owner/Technician
Michigan
Eric Default
 

At this point, I would be very suspicious of a head gasket failure. I suspect these other 'repairs' were done trying to fix the issue. I can't believe by now if an air pocket were the initial problem that it hasn't been expelled. If it were an air pocket, how did it get there? Possibly when the timing chain was done, but a simple procedure with an Airlift would solve an air pocket problem…

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Brian Owner
Ohio
Brian Update
 

Update 10/2/19 all temps within 6 degrees F of each other after cold soak. Running trying to duplicate, intermittent for sure!

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