Help!!! Escape leaking yellow fluid from driverside rear?
#21
06-12-2014, 07:47 AM
Re: Help!!! Escape leaking yellow fluid from driverside rear?
OK, saga is not over yet..last night the engine service light came on! Of course it is 6:05 pm of my day off, and the dealership just closed at 6....
So I take it to Autozone to run the codes on the diagnostic scanner, and it says it's a coolant sensor. Well, the coolant levels look fine, and the autozone guy says well since those levels look fine--just replace the sensor.
Ok, but again another "cooling" problem? Is this again just another coincidence or a related problem? What should I do?
Take it back to the dealer (I left a message with service manager again) or try and fix it myself? (Which I don't know how to do, so I posted this: )
https://www.greenhybrid.com/discuss/...-hybrid-29726/
So I take it to Autozone to run the codes on the diagnostic scanner, and it says it's a coolant sensor. Well, the coolant levels look fine, and the autozone guy says well since those levels look fine--just replace the sensor.
Ok, but again another "cooling" problem? Is this again just another coincidence or a related problem? What should I do?
Take it back to the dealer (I left a message with service manager again) or try and fix it myself? (Which I don't know how to do, so I posted this: )
https://www.greenhybrid.com/discuss/...-hybrid-29726/
Last edited by JCPerformance; 06-20-2014 at 09:59 AM.
#22
06-12-2014, 12:23 PM
Hybrid and Ethanol Expert
Join Date: Mar 2005
Location: All over the Central U.S.
Posts: 3,616
Re: Help!!! Escape leaking yellow fluid from driverside rear?
Coolent = liquid aka water aka Prestone (tm)
Cooling system = compressed gas aka Freon (tm)
The two are quite different and unrelated.
Liquid coolent is ONLY under the hood. It cools the engine on one loop with one pump. It cools some powerful electronics with a separate loop with a separate pump. Engine Loop operates at 185 to 195 degrees F. The motor / electronics loop operates at ambient air temperature to about 100 degrees F.
Compressed gas ("Freon") also operates on two loops.
One loop goes through the dashboard to cool the air blown on passengers.
One loop goes back to the rear to cool the air that blows over the battery in models from 2005-2009 only.
There is an automated control valve for both loops.
There is only one Freon compressor (pump).
Humans control the valve for the front dash.
Only a computer controls the valve for the rear zone.
You can have one, either, or both valves open at the same time.
In my 2005 I notice reduced cooling effect up front when the rear zone is open. Others don't notice.
So what's your problem?
Yellow "water" is from one of the COOLENT loops under the hood.
Yellow oily "dye" is leak detector from the dash or rear freon system.
Cooling system = compressed gas aka Freon (tm)
The two are quite different and unrelated.
Liquid coolent is ONLY under the hood. It cools the engine on one loop with one pump. It cools some powerful electronics with a separate loop with a separate pump. Engine Loop operates at 185 to 195 degrees F. The motor / electronics loop operates at ambient air temperature to about 100 degrees F.
Compressed gas ("Freon") also operates on two loops.
One loop goes through the dashboard to cool the air blown on passengers.
One loop goes back to the rear to cool the air that blows over the battery in models from 2005-2009 only.
There is an automated control valve for both loops.
There is only one Freon compressor (pump).
Humans control the valve for the front dash.
Only a computer controls the valve for the rear zone.
You can have one, either, or both valves open at the same time.
In my 2005 I notice reduced cooling effect up front when the rear zone is open. Others don't notice.
So what's your problem?
Yellow "water" is from one of the COOLENT loops under the hood.
Yellow oily "dye" is leak detector from the dash or rear freon system.
Last edited by gpsman1; 06-12-2014 at 12:30 PM. Reason: Spelling
#23
06-12-2014, 12:51 PM
Re: Help!!! Escape leaking yellow fluid from driverside rear?
Coolent = liquid aka water aka Prestone (tm)
Cooling system = compressed gas aka Freon (tm)
The two are quite different and unrelated.
Liquid coolent is ONLY under the hood. It cools the engine on one loop with one pump. It cools some powerful electronics with a separate loop with a separate pump. Engine Loop operates at 185 to 195 degrees F. The motor / electronics loop operates at ambient air temperature to about 100 degrees F.
Compressed gas ("Freon") also operates on two loops.
One loop goes through the dashboard to cool the air blown on passengers.
One loop goes back to the rear to cool the air that blows over the battery in models from 2005-2009 only.
There is an automated control valve for both loops.
There is only one Freon compressor (pump).
Humans control the valve for the front dash.
Only a computer controls the valve for the rear zone.
You can have one, either, or both valves open at the same time.
In my 2005 I notice reduced cooling effect up front when the rear zone is open. Others don't notice.
So what's your problem?
Yellow "water" is from one of the COOLENT loops under the hood.
Yellow oily "dye" is leak detector from the dash or rear freon system.
Cooling system = compressed gas aka Freon (tm)
The two are quite different and unrelated.
Liquid coolent is ONLY under the hood. It cools the engine on one loop with one pump. It cools some powerful electronics with a separate loop with a separate pump. Engine Loop operates at 185 to 195 degrees F. The motor / electronics loop operates at ambient air temperature to about 100 degrees F.
Compressed gas ("Freon") also operates on two loops.
One loop goes through the dashboard to cool the air blown on passengers.
One loop goes back to the rear to cool the air that blows over the battery in models from 2005-2009 only.
There is an automated control valve for both loops.
There is only one Freon compressor (pump).
Humans control the valve for the front dash.
Only a computer controls the valve for the rear zone.
You can have one, either, or both valves open at the same time.
In my 2005 I notice reduced cooling effect up front when the rear zone is open. Others don't notice.
So what's your problem?
Yellow "water" is from one of the COOLENT loops under the hood.
Yellow oily "dye" is leak detector from the dash or rear freon system.
Which problem would trigger the engine service light on the dash to go on AND have the diagnostic scanner read: "coolant sensor"?
I know both systems probably have sensors, but what would be your next step to fix this considering the sequence of events?
Last edited by JCPerformance; 06-12-2014 at 12:56 PM.
#24
06-20-2014, 06:38 AM
Re: Help!!! Escape leaking yellow fluid from driverside rear?
Well, I broke down and decided to take it in again for the engine light (third time in less than 6 weeks). After a day of waiting, I received a call letting me know that the thermostat needs to be replaced?!
Ok, Correlation or Coincidence??? Let me know here:
https://www.greenhybrid.com/discuss/...42/#post253071
Ok, Correlation or Coincidence??? Let me know here:
https://www.greenhybrid.com/discuss/...42/#post253071
Last edited by JCPerformance; 06-20-2014 at 07:18 AM.
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