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jtrejo jtrejo is offline
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Default anyone ever have this issue with the cooling system/ water pump? - 03-31-2017, 09:26 AM

so this past sunday, i was driving up a long hill ( if anyone is familiar to southern California the toll roads from the 91 freeway) anyways i was doing about 130-140ish and suddenly the moderate temperature light comes on 10 seconds later the red overheating light come on. i pull over immediately. let car rest about 30 min, try driving again goes moderate then red again. i stop get car towed home. following day i try and test water pump using the procedure, nothing it doesnt turn on, i said ok strange i just replaced water pump and thermostat 2 years prior 10k miles ago. so i order a new one install it yesterday test it still not working, so now i m like WTF, so i test to see if I have power at the pump and I do, so i check all the fuses they all look good. I also saw online somewhere a 50 amp fuse by ecu, i check it out looks ok still kinda making contact it was 95% blown and still made a little contact. so replaced that and water pump worked perfect. I was wondering if I didnt know how to work on cars, if i had taken it to the dealer would they of replaced pump and thermostat and say that was the issue and also change the fuse, and not tell me old pump was still good?


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MalibuMafiaV MalibuMafiaV is offline
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Default 03-31-2017, 10:04 AM

Check master fuses. Mine recently wouldn't turn on either. It was a fuse that had come lose.


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jtrejo jtrejo is offline
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Default 03-31-2017, 10:26 AM

Quote:
Originally Posted by MalibuMafiaV
Check master fuses. Mine recently wouldn't turn on either. It was a fuse that had come lose.

maybe you didnt read my whole paragraph, i found the issue it was a fuse by the ECU a 50 amp and both water pumps worked. everything is good now


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chadillac2000 chadillac2000 is offline
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Default 03-31-2017, 10:40 AM

Chances are that yes your old pump is still functional and was replaced for no reason. The fuse was probably the culprit the whole time.


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MalibuMafiaV MalibuMafiaV is offline
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Default 03-31-2017, 11:12 AM

Quote:
Originally Posted by jtrejo
maybe you didnt read my whole paragraph, i found the issue it was a fuse by the ECU a 50 amp and both water pumps worked. everything is good now
Oh whoops I did miss that

Cool! glad it's all working again.


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Spxxx Spxxx is offline
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Default 03-31-2017, 02:40 PM

Maybe stay under 2x the speed limit lol


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Cynical Cynical is offline
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Default 03-31-2017, 03:35 PM

What happens is the pump goes bad....Internally it overheats and sends that back through the harness and melts the fuse.
I was fortunate enough to have this happen once while under warranty still. It melted the connector on the pump and the wiring harness leading to it.

So to answer your question. No the dealer doesnt just replace the fuse. The pump is the cause of it popping in the first place
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