Stock Water Pump Longevity
Thread Starter
Safety Car
Joined: Apr 2007
Posts: 3,582
Likes: 136
From: SoCal CA
Stock Water Pump Longevity
Hey guys, my water pump is going on 86k miles and I have yet to see a cooling issue with it. Yesterday was a hot day, oil temp was 220 and yet the cooling system stayed at 187. Thats with a stock radiator too. I was wondering if should leave it in till it croaks or leaks or should I replace it to be safe? For those who have changed theirs, how long did it last? Thanks.
Pro
Joined: Mar 2007
Posts: 600
Likes: 11
From: Wilmington NC
108k on stock pump with highly modded engine... I have a 160 degree thermostat and I run 178 cruising in summer 174 in winter and never goes above 210 when sitting. My oil and trans temp usually never exceed 210.
I took it off last week to replace my ac compressor, the pump is a PITA to put back on but can be done in the driveway. Changing the thermostat is very easy.
I took it off last week to replace my ac compressor, the pump is a PITA to put back on but can be done in the driveway. Changing the thermostat is very easy.
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Thread Starter
Safety Car
Joined: Apr 2007
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From: SoCal CA
Melting Slicks
Joined: Apr 2009
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I wonder what the connection (if any) is between water pump longevity and people that switched their coolant over to regular green glycol. I've read that the GM Dexcool does wonders for water pump longevity and that switching over to conventional glycol coolant shortens the water pump life. Any comments?
Safety Car
Joined: Jun 2004
Posts: 4,983
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From: Stoney Creek Ontario
Dexcool is an aid to longer water pump life as is any other "extended life" coolant, compared to regular glycol....all anti freeze contains rust inhibitors and certain lubricants, all of which will wear out in time, they just last longer in extended life coolants, hence the recommended change interval is longer....a water pump will pretty much always pump water, they just eventually leak because of bearing and or seal failure....because the rust inhibitors and lubricants dissipate.......if you change your anti freeze according to the manufacturers recommendation, the water pumps will last longer - so will the rads.... Or, you could do what's very common in the trucking industry - take coolant samples regularly, sort of tests the PH level of the coolant...and add additives as required ( nalcool etc) .... Anti freeze itself really never wears out, just the additives dissipate over time due to constant heat and cool cycles.....then you get the water pump leaks....
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Dexcool is an aid to longer water pump life as is any other "extended life" coolant, compared to regular glycol....all anti freeze contains rust inhibitors and certain lubricants, all of which will wear out in time, they just last longer in extended life coolants, hence the recommended change interval is longer....a water pump will pretty much always pump water, they just eventually leak because of bearing and or seal failure....because the rust inhibitors and lubricants dissipate.......if you change your anti freeze according to the manufacturers recommendation, the water pumps will last longer - so will the rads.... Or, you could do what's very common in the trucking industry - take coolant samples regularly, sort of tests the PH level of the coolant...and add additives as required ( nalcool etc) .... Anti freeze itself really never wears out, just the additives dissipate over time due to constant heat and cool cycles.....then you get the water pump leaks....
tell that to the waterpump on my girlfriends 02...we just replaced the entire cooling system not 2 years ago and the fkin waterpump is weeping again.....this will be the 6th waterpump for her car....140K....my 99 is on number 2
I have seen people on here replace them with 15K.....30K....100K and others well over a 100K with no issues....
I have no freaking clue why her car kills waterpumps
Drifting
Joined: Jun 2011
Posts: 1,642
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From: Ca.
tell that to the waterpump on my girlfriends 02...we just replaced the entire cooling system not 2 years ago and the fkin waterpump is weeping again.....this will be the 6th waterpump for her car....140K....my 99 is on number 2
I have seen people on here replace them with 15K.....30K....100K and others well over a 100K with no issues....
I have no freaking clue why her car kills waterpumps