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coolant level trouble shooting

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coolant level trouble shooting
Old August 20th, 2017, 04:14 PM   #1
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coolant level trouble shooting

So I am having trouble trouble shooting my coolant level issue. Last month I took my car for a drive in the mountains and noticed the temp reading higher than normal, i proceeded to check a few things and noticed the coolant level expansion tank was barley above the minimum line. I went ahead and filled up the tank with 50/50 mix. I also looked around to see if i noticed any leaks from the coolant system. With no noticeable leaks i drove the car home and decided to check the level again when i got home. The level was low again both the expansion and the reservoir tank. I didn't see any leaks on the ground either. which leads me to today, i went to auto zone to borrow a coolant radiator cap pressure tester in hopes that under pressure with the car lifted i would see something that might be the issue
Can some chime in with tips to look for?
I am running a stock radiator cap at 17lbs and having changed anything else on my coolant system other than upgrading to mishimoto hoses.
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Old August 20th, 2017, 04:28 PM   #2
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Just keep refilling it. If it's not leaking, so what? Also, is it Evan's coolant you're running?
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Old August 20th, 2017, 04:57 PM   #3
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Check your oil. It could be leaking internally.
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Old August 20th, 2017, 05:17 PM   #4
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Also, did you check for leaks while the car was running at operating temp?
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Old August 20th, 2017, 05:31 PM   #5
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Check your oil. It could be leaking internally.
i didnt notice any viscosity changes based off appearance with my oil when i checked. It still looks new from the last change.
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Old August 20th, 2017, 05:31 PM   #6
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Also, did you check for leaks while the car was running at operating temp?
yes , nothing stood out i didnt notice any smoke or steam or leaks....
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Old August 20th, 2017, 08:15 PM   #7
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Did you also check the hoses going to the heat box, smell any coolant? Timing chain cover gaskets are known to go bad and would cause an internal leak. Sending off an oil sample would tell you if any coolant is in the oil.

It is possible you are burning coolant, but I would check everything else first as it's not a common issue on the Gen 2s. They sell a "block tester" that can be used to see if your coolant has combustion gases in it.
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Old August 20th, 2017, 10:12 PM   #8
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Maybe it's just filling up the overflow tank in the bumper.
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Old August 21st, 2017, 04:29 AM   #9
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Quite likely you were so low on coolant that if you are not seeing any visible leakage then it is simply refilling the system.

How would it have gotten so low you might ask? The hidden tank in the fascia is vented and will experience evaporation. In other words the level will go down in that tank with the car just sitting there. Let alone from the heat of driving. Depending on how often you check it you can lose a lot.

Top off both the plastic tanks when you are filling it if both are low. The surge tank, the one with the radiator cap, should be brim full always. Assuming you don't have any other issues like leaks etc, the level should stabilize after a few drive and refill cycles.

Oh. And congrats on your wedding. I saw some pics. Nice event.
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Old August 21st, 2017, 01:08 PM   #10
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Quote:
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Quite likely you were so low on coolant that if you are not seeing any visible leakage then it is simply refilling the system.

How would it have gotten so low you might ask? The hidden tank in the fascia is vented and will experience evaporation. In other words the level will go down in that tank with the car just sitting there. Let alone from the heat of driving. Depending on how often you check it you can lose a lot.

Top off both the plastic tanks when you are filling it if both are low. The surge tank, the one with the radiator cap, should be brim full always. Assuming you don't have any other issues like leaks etc, the level should stabilize after a few drive and refill cycles.

Oh. And congrats on your wedding. I saw some pics. Nice event.
True i can not confirm the level before the drive.
Being in texas how often do you typically check your coolant levels?

THanks the wedding was a lot of fun. Did you see the pictures of the Rc race...? viper vs honda.
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Old August 21st, 2017, 01:14 PM   #11
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Quote:
Originally Posted by Holyfield619 View Post
True i can not confirm the level before the drive.
Being in texas how often do you typically check your coolant levels?

THanks the wedding was a lot of fun. Did you see the pictures of the Rc race...? viper vs honda.
Didn't see the race pics. I'll ask about it.

I usually check mine a couple times a year. But there are people that never check theirs ever. That's where you get into issues.
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Old August 21st, 2017, 01:33 PM   #12
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Maybe I missed it , but Gen I? If so, bad head gaskets? Fluid down side of block?

Last edited by 99RT10&GTS; August 21st, 2017 at 01:46 PM.
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Old August 21st, 2017, 01:39 PM   #13
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He has a '97 IIRC.
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Old August 21st, 2017, 02:02 PM   #14
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You can always check your coolant before you go out for a drive in the front fascia tank.
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