2007 LS 460 Heater Issue
Thread Starter
Rookie
Joined: Dec 2010
Posts: 66
Likes: 4
From: Ohio
2007 LS 460 Heater Issue
My 2007 LS 460 has developed an intermittent heater problem. The heater works fine when driving at higher speeds but when I slow way down or sit @ idle the cabin cools quickly even if one adjusts the temp. arrow.
Once you regain faster speeds the problem rectifies itself.
Any suggestions on a fix?
Once you regain faster speeds the problem rectifies itself.
Any suggestions on a fix?
Rookie
Joined: Sep 2007
Posts: 73
Likes: 1
From: OK
My 2007 LS 460 has developed an intermittent heater problem. The heater works fine when driving at higher speeds but when I slow way down or sit @ idle the cabin cools quickly even if one adjusts the temp. arrow.
Once you regain faster speeds the problem rectifies itself.
Any suggestions on a fix?
Once you regain faster speeds the problem rectifies itself.
Any suggestions on a fix?
Lead Lap
Joined: Feb 2013
Posts: 680
Likes: 0
From: Redmond wa
Poor/bad water pump would first cause engine overheating at higher road speeds, engine load/RPM.
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CL Community Team
Joined: Apr 2008
Posts: 2,222
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From: TX
Thank you for sharing your information with us. We've seen several reports of water pump failures, but no one ever indicates the manner of failure. Do you know if the pump developed a fluid leak around the impeller shaft? Or was it something like a broken impeller? Or something else?
Lead Lap
Joined: Feb 2013
Posts: 680
Likes: 0
From: Redmond wa
Water pump failures are pretty much restricted to shaft bearing failures once the shaft seal fails and allows coolant to get to the bearing.
I have seen a few, VERY FEW, pump impeller failures which is what would need to fail in order to reduce flow.
You would need to have a serious problem with pump cavitation in order to compromise the impeller pumping capacity.
I have seen a few, VERY FEW, pump impeller failures which is what would need to fail in order to reduce flow.
You would need to have a serious problem with pump cavitation in order to compromise the impeller pumping capacity.
Thread Starter
Rookie
Joined: Dec 2010
Posts: 66
Likes: 4
From: Ohio
My 2007 LS 460 has developed an intermittent heater problem. The heater works fine when driving at higher speeds but when I slow way down or sit @ idle the cabin cools quickly even if one adjusts the temp. arrow.
Once you regain faster speeds the problem rectifies itself.
Any suggestions on a fix?
Once you regain faster speeds the problem rectifies itself.
Any suggestions on a fix?
Thanks for your help.
Byroncat
Thread Starter
Rookie
Joined: Dec 2010
Posts: 66
Likes: 4
From: Ohio
Thank you for sharing your information with us. We've seen several reports of water pump failures, but no one ever indicates the manner of failure. Do you know if the pump developed a fluid leak around the impeller shaft? Or was it something like a broken impeller? Or something else?
Thanks for your interest.
Byroncat
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