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Overheating prob

Old 21-Jul-2005, 11:35 AM
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Overheating prob

I'm currently having an overheating prob. So far I have the rad fan looped so it's on all of the time, had a new water pump installed as well as added water wetter to my coolant. The thermostat is also working as all of the coolant lines are hot. After driving for a couple of minutes I hear a bubbling sound coming from the coolant lines. Could this be air in the system if so how do I bleed it out. Thanks allot.
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Old 21-Jul-2005, 11:41 AM
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Re: Overheating prob

Originally posted by Mr. Death
I'm currently having an overheating prob. So far I have the rad fan looped so it's on all of the time, had a new water pump installed as well as added water wetter to my coolant. The thermostat is also working as all of the coolant lines are hot. After driving for a couple of minutes I hear a bubbling sound coming from the coolant lines. Could this be air in the system if so how do I bleed it out. Thanks allot.
I would try what bbarbulo suggested:
Originally posted by bbarbulo
the fan runs once the car reached operating temp (about 195 deg F if I remember right)

if the fluid is really low, fill the rad up AND the reservoir 1/2 way, then bleed the system (with the heater on full heat), then drive around till the fan comes on and completes 2 cycles, then let it all cool off and check the rad level again and add if necessary.

Use only Prestone + distilled water, or even better go and get Honda pre-mix coolant from the dealer.
There is also a bleeder screw located on the upper rad hose fitting, the highest point on the cooling system, it's either 10mm or 12mm (I forget) that you can use to get the air out while the car is running. Wait till there is a steady stream of coolant coming out and you should be ok..
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Old 22-Jul-2005, 11:39 PM
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Alright I bled the system and still I'm overheating. I think it's time to retire the old crx rad and get something with more cooling capacity.
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Old 23-Jul-2005, 12:32 AM
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Sounds like you need a new rad.
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Old 23-Jul-2005, 12:25 PM
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Re: Overheating prob

Originally posted by Mr. Death
I hear a bubbling sound
oh oh. potentially a head gasket
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Old 23-Jul-2005, 01:24 PM
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head gasket.....had the same problem
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Old 23-Jul-2005, 10:37 PM
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I thought the same but there's no strange coloured smoke coming from the exhaust
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Old 24-Jul-2005, 04:25 AM
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compression and leakdown tests please.

or add that dye to your coolant, see if it indicates exhaust residue in your coolant.

or you can just keeping dumping money into your coolant system until one day you realize it was the head gasket all along.

comp and leakdown tests are cheap compared to a new rad.
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