Is my coolant pump going out?
Thread Starter
Member
Joined: Nov 2012
Posts: 178
Likes: 12
2013 C250
Is my coolant pump going out?
I'm hearing a whining sound that goes with engine speed. Coolant, brake, and steering fluid levels are fine. Auxiliary coolant pump runs after shutting off the engine for a minute.
wife said one day the temp went up high, but its nevwr reoccurred with me driving. No lights or temp in red. It was high by So Cal standards in stop and go. One day i drove it and had no heat from heater. I shut off and started engine and heat blew from vent.
at first i thought aux coolant pump was bad but I'm still hearing the whine with aux pump disconnected. I thought a coolant pump would just go out. I dont aee why it would make any noise between dead and functioning.
No codes with icarly.
wife said one day the temp went up high, but its nevwr reoccurred with me driving. No lights or temp in red. It was high by So Cal standards in stop and go. One day i drove it and had no heat from heater. I shut off and started engine and heat blew from vent.
at first i thought aux coolant pump was bad but I'm still hearing the whine with aux pump disconnected. I thought a coolant pump would just go out. I dont aee why it would make any noise between dead and functioning.
No codes with icarly.
Senior Member
Joined: Jun 2016
Posts: 462
Likes: 152
From: Panama City, FL
2020 C300, 2013 C250, 2000 Boxster S
I'm hearing a whining sound that goes with engine speed. Coolant, brake, and steering fluid levels are fine. Auxiliary coolant pump runs after shutting off the engine for a minute.
wife said one day the temp went up high, but its nevwr reoccurred with me driving. No lights or temp in red. It was high by So Cal standards in stop and go. One day i drove it and had no heat from heater. I shut off and started engine and heat blew from vent.
at first i thought aux coolant pump was bad but I'm still hearing the whine with aux pump disconnected. I thought a coolant pump would just go out. I dont aee why it would make any noise between dead and functioning.
No codes with icarly.
wife said one day the temp went up high, but its nevwr reoccurred with me driving. No lights or temp in red. It was high by So Cal standards in stop and go. One day i drove it and had no heat from heater. I shut off and started engine and heat blew from vent.
at first i thought aux coolant pump was bad but I'm still hearing the whine with aux pump disconnected. I thought a coolant pump would just go out. I dont aee why it would make any noise between dead and functioning.
No codes with icarly.
