Radiator keeps going down
#1
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Thread Starter
Radiator keeps going down
2002 1.7l rad consumes about 2-4 ounces of fluid per day/100k. Pressure test holds for 30min np, CO test for combustion gas also negative. No visible coolant leaks, no oil in rad overflow, no sweet exhaust smell, but the rad consistently keeps going down every day after running about 100k to work and back. Rad overflow has fluid. I suspect the head gasket but I'm not convinced. Civic has 160k and runs fine!
Looking for next diagnostic ideas?
Thanks
Looking for next diagnostic ideas?
Thanks
#3
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Join Date: Nov 2014
Location: Bedford, TX
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Rep Power: 117 Re: Radiator keeps going down
2002 1.7l rad consumes about 2-4 ounces of fluid per day/100k. Pressure test holds for 30min np, CO test for combustion gas also negative. No visible coolant leaks, no oil in rad overflow, no sweet exhaust smell, but the rad consistently keeps going down every day after running about 100k to work and back. Rad overflow has fluid. I suspect the head gasket but I'm not convinced. Civic has 160k and runs fine!
Looking for next diagnostic ideas?
Thanks
Looking for next diagnostic ideas?
Thanks
#4
If you think a good mechanic is expensive, try hiring a bad one
Re: Radiator keeps going down
They will usually pass every last one of the common tests and inspections most people would try.
#6
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Re: Radiator keeps going down
I have a second 2002 Civic, head gasket went at 258k. Symptoms were easy as the rad overflow was oily! This one is stranger! Just keeps drinking rad fluid. It must be going somewhere?
#7
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Re: Radiator keeps going down
Yes, the rad overflow is full but not overflowing. Cap is on tight. Maybe I should lower it and watch? Just keeps drinking rad fluid every day!
#8
Re: Radiator keeps going down
the overflow bottle is probably literally overflowing while you are driving, thats where the coolant is going, this is a sure sign of a blown head gasket,
#9
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Re: Radiator keeps going down
Thanks mikey1. Two questions 1) is there any other definitive test to test for a blown head gasket before I spend the money to get it fixed?
2) Should it not be sucking the fluid back into the rad from the overflow when the rad is down.
Thanks... Terry W.
2) Should it not be sucking the fluid back into the rad from the overflow when the rad is down.
Thanks... Terry W.
#10
Re: Radiator keeps going down
but from what you are describing i would say with 99.9% certainty you have a blown head gasket
#11
If you think a good mechanic is expensive, try hiring a bad one
Re: Radiator keeps going down
wait for ezone to reply, or pm him, he can explain how to test it better then i can, you basically need to apply air pressure into the cylinders through the spark plug holes and see if bubbles appear at the radiator cap/filling tube,
but from what you are describing i would say with 99.9% certainty you have a blown head gasket
but from what you are describing i would say with 99.9% certainty you have a blown head gasket
https://www.civicforums.com/forums/36-mechanical-problems-vehicle-issues-fix-forum/356966-radiatr-2001-ex-coupe.html#post4649516
And like I said in that other thread today:
If someone wants to sponsor me a go-pro or something, I'd gladly make a video of the entire test. I'll need a test subject with a suspected blown head gasket too. Must be local and able to drive to my shop.
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