leaking coolant-don't know name of component
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Registered User
Joined: Dec 2012
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leaking coolant-don't know name of component
There is a small component that connects multiple small heater core pipes together. It is leaking. I don't know the name of the part and am not sure where to get a replacement. Attached is a picture of the part.
Professional
Joined: Oct 2013
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Well, I think I found it. It is called "pump-auxiliary coolant"
An auxiliary electric coolant pump is used on all models
to aid in circulating the engine coolant through the
front and rear heater core (depending on application).
The electric coolant pump is mounted to the right front
frame rail by a rubber isolator (1) and consists of a
molded plastic housing (2) with two heater hose connections
(3), a 12 volt direct current (DC) motor and
impeller assembly (4) with an integral wire connector
receptacle (5).
OPERATION
The A/C-heater control operates the electric coolant pump when all of the following conditions have been met.
²
Vehicle speed below 48 km/h (30 mph)
²
Coolant temperature between 10° C (50° F) and 110° C (230° F)
²
Front blower motor turned On
²
Rear temperature heat setting above the halfway setting (60% heat)
²
No fault conditions detected
The A/C-heater control turns the electric coolant pump Off when any of the following conditions occur.
²
Vehicle speed above 48 km/h (30 mph)
²
Coolant temperature above 110° C (230° F)
²
Front blower motor turned Off
The electric coolant pump cannot be adjusted or repaired and, if faulty or damaged, it must be replaced.
The electric coolant pump is diagnosed using a scan tool. Refer to 24 - HVAC Electrical Diagnostics for more
information.
An auxiliary electric coolant pump is used on all models
to aid in circulating the engine coolant through the
front and rear heater core (depending on application).
The electric coolant pump is mounted to the right front
frame rail by a rubber isolator (1) and consists of a
molded plastic housing (2) with two heater hose connections
(3), a 12 volt direct current (DC) motor and
impeller assembly (4) with an integral wire connector
receptacle (5).
OPERATION
The A/C-heater control operates the electric coolant pump when all of the following conditions have been met.
²
Vehicle speed below 48 km/h (30 mph)
²
Coolant temperature between 10° C (50° F) and 110° C (230° F)
²
Front blower motor turned On
²
Rear temperature heat setting above the halfway setting (60% heat)
²
No fault conditions detected
The A/C-heater control turns the electric coolant pump Off when any of the following conditions occur.
²
Vehicle speed above 48 km/h (30 mph)
²
Coolant temperature above 110° C (230° F)
²
Front blower motor turned Off
The electric coolant pump cannot be adjusted or repaired and, if faulty or damaged, it must be replaced.
The electric coolant pump is diagnosed using a scan tool. Refer to 24 - HVAC Electrical Diagnostics for more
information.
Thread Starter
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Registered User
Joined: Dec 2012
Posts: 4
Likes: 0
auxiliary water pump
Thank you for the reply. You are right that it was the auxiliary water pump. I have already fixed it and I'm good to go.
For others who run into this problem here's some info:
1. It's located directly underneath the air filter housing and the battery housing.
2. Just remove the air filter housing by removing the 2 bolts holding it to the frame.
3. It's easy access.
4. Also, if you don't want to put another pump in that is ok to. I found others people with the problem online and they simply bypassed it by getting a coupling ($5~). I know this works as I have driven it the last 2 days and the back has been getting plenty of hot air, I can't even tell the difference.
For others who run into this problem here's some info:
1. It's located directly underneath the air filter housing and the battery housing.
2. Just remove the air filter housing by removing the 2 bolts holding it to the frame.
3. It's easy access.
4. Also, if you don't want to put another pump in that is ok to. I found others people with the problem online and they simply bypassed it by getting a coupling ($5~). I know this works as I have driven it the last 2 days and the back has been getting plenty of hot air, I can't even tell the difference.