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Water pump failed?? Need advice.

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Old 11-03-2018, 04:29 AM
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Default Water pump failed?? Need advice.

I have a 96 civic ex. The radiator cracked along the top, i replaced it. Then after when i started the car, the top hose started swelling up and there was a lot of pressure in the system. The cooling fan did not turn on. I think it is the water pump not working.
Old 11-03-2018, 06:02 AM
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Default Re: Water pump failed?? Need advice.

Did you top off the radiator and reservoir with coolant and then do a thorough cooling system bleed?
Old 11-03-2018, 06:13 AM
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Default Re: Water pump failed?? Need advice.

Originally Posted by muellersfan
Did you top off the radiator and reservoir with coolant and then do a thorough cooling system bleed?
yes, but i think it is the head gasket now. It wont crank, and just from attempting to crank, there is pressure in the radiator. Am i right?
Old 11-03-2018, 06:14 AM
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Default Re: Water pump failed?? Need advice.

Originally Posted by Michael Butts
yes, but i think it is the head gasket now. It wont crank, and just from attempting to crank, there is pressure in the radiator. Am i right?
Was the dash temp gauge pegged at the full HOT red zone when the radiator failed?
Old 11-03-2018, 06:19 AM
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Default Re: Water pump failed?? Need advice.

Originally Posted by muellersfan
Was the dash temp gauge pegged at the full HOT red zone when the radiator failed?
I think the thermostat has been stuck open, so the temp has always been low. But the temp did rise the first time it started after i replaced the radiator. I turned it off when i saw the top hose swelling. It hasnt cranked since.
Old 11-03-2018, 07:39 AM
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Default Re: Water pump failed?? Need advice.

Originally Posted by muellersfan
Was the dash temp gauge pegged at the full HOT red zone when the radiator failed?
Old 11-03-2018, 08:05 AM
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Default Re: Water pump failed?? Need advice.

since the thermostat is always open, the "normal" running temp is always at the bottom of the cool gauge. So after the radiator replacement, the temp went up to the mid point on the gauge. That would probably be at the hot end.
Old 11-03-2018, 08:56 AM
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Default Re: Water pump failed?? Need advice.

Operating temp is supposed to be at that level. Try a new rad cap, and bleed the system properly before you jump to conclusions.

If it’s a d series you have to loosen the bleeder bolt on the upper hose too.

And if it’s not cranking now that has about nothing to do with anything that you mentioned. Fix the no crank first.
Old 11-03-2018, 09:02 AM
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Default Re: Water pump failed?? Need advice.

Originally Posted by White_EG1
Operating temp is supposed to be at that level. Try a new rad cap, and bleed the system properly before you jump to conclusions.

If it’s a d series you have to loosen the bleeder bolt on the upper hose too.
I will try the bleeder bolt and bleed the system.
Old 11-03-2018, 09:07 AM
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Default Re: Water pump failed?? Need advice.

6th generation = no bleed bolt
Old 11-03-2018, 09:13 AM
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Default Re: Water pump failed?? Need advice.

Radiator cap should release pressure to the reservoir, so consider that the cap is bad.
Old 11-03-2018, 09:16 AM
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Default Re: Water pump failed?? Need advice.

Originally Posted by muellersfan
Radiator cap should release pressure to the reservoir, so consider that the cap is bad.
The car still wont crank. But pressure still builds in the new radiator from attempting to crank.
Old 11-03-2018, 09:21 AM
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Default Re: Water pump failed?? Need advice.

Fyi
Cranking = starter turning engine
Old 11-03-2018, 09:22 AM
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Default Re: Water pump failed?? Need advice.

Originally Posted by Michael Butts
The car still wont crank. But pressure still builds in the new radiator from attempting to crank.
Compression test the cylinders
Old 11-03-2018, 03:37 PM
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Default Re: Water pump failed?? Need advice.

pull the cap off and crank what happens?
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