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coolant leak

Old Mar 17, 2004 | 02:17 PM
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coolant leak

my car seems to be leaking coolant. the car runs fine and the coolant warning light or any engine warning light has never come on. any suggestions?
my only mod is a downpipe and the motor has 55K miles on it.
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Old Mar 17, 2004 | 02:26 PM
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could it be that i just have air bubbles in my coolant lines?
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Old Mar 17, 2004 | 02:45 PM
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Leaking coolant how? Where? I'm guessing that you are just noticing that the level is lower at times?

Possibly that you need to burp the system more and air is slowly going out showing that the coolant is getting lower.

Add coolant as you burp the system keeping a close eye on it.

Check for leaks with pressure tester. Sometimes tiny holes don't show up unless under pressure.

Hopefully, your engine isn't eating the coolant from a bad O-ring.
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Old Mar 17, 2004 | 02:47 PM
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Originally posted by RX7_GSL_1985
Leaking coolant how? Where? I'm guessing that you are just noticing that the level is lower at times?

Possibly that you need to burp the system more and air is slowly going out showing that the coolant is getting lower.

Add coolant as you burp the system keeping a close eye on it.

Check for leaks with pressure tester. Sometimes tiny holes don't show up unless under pressure.

Hopefully, your engine isn't eating the coolant from a bad O-ring.
And do this ASAP. Coolant leaks are no joking matter in FDs.
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Old Mar 17, 2004 | 02:48 PM
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how exactly do you burp the coolant system

btw newbie(sort of)
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Old Mar 17, 2004 | 02:48 PM
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OK!! THIS IS A COMPUTER GLITCH.

RX7_GSL_1985 DID NOT just post the above thread.

I did, evot23. Somehow it logged me in as that guy?

Moderators?
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Old Mar 17, 2004 | 02:50 PM
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Gently squeeze the upper radiator hose where it enters the water pump with the water pump housing cap off. You should see air come up.

Another tip is to disconnect the TB coolant line (nearest the driver at the top rear of the intake assy) as you're filling so the air can escape from there. Rumor is having the front jacked up with this hose off reduces the need for burping when you refill coolant.
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Old Mar 17, 2004 | 02:50 PM
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warm up the engine, not too hot! let cool.

squeeze the hose coming from the filler neck to the radiator, pump it a few times.

Slowly open the filler neck (CAREFUL!) releasing any air that may have moved through the system. Open your AST too.

Refill, repeat
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Old Mar 17, 2004 | 02:51 PM
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Another tip is to disconnect the TB coolant line (nearest the driver at the top rear of the intake assy) as you're filling so the air can escape from there. Rumor is having the front jacked up with this hose off reduces the need for burping when you refill coolant
Excellent tip!
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Old Mar 17, 2004 | 02:54 PM
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thanx for the help
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Old Mar 17, 2004 | 02:56 PM
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picture

Note that the picture makes it appear the hose connects into the intercooler crossover pipe. It doesn't - the radiator hose is below/behind the crossover pipe.

Last edited by dgeesaman; Mar 17, 2004 at 03:02 PM.
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