Lost all coolant - Chevy Traverse Forum: Chevrolet Traverse Forum
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post #1 of 12 (permalink) Old 07-02-2019, 01:49 PM Thread Starter
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Lost all coolant

Yesterday my wife was driving the 2014 traverse about an hour from home, probably going about 70 on the interstate. When she called me she said she hit something and blew out a tire, so I headed out to fix it. A while later, I called and she said a guy stopped to help her. A later call, and the tire was fixed, but the guy said she had a coolant leak. By the time I got there, all the coolant must have run out, and she had moved the car from it’s previous spot. I poured some water in the overflow tank and tried to drive it. I maybe got a mile down the road before it told me to idle, then stop the engine.
I’m going back tonight to put it on a trailer and get it home, but I’m wondering what the most likely thing got broken to dump all my coolant? I didn’t bother trying to crawl around in the grass by the interstate to look for a damaged hose and by the time I got to a safe spot, I just wanted to leave it for the night. Of course I’ll know more this evening when I get it home. Just looking for some likely places. Radiator? Hose? Someplace else I won’t expect (own mostly older fords). Thanks for the advice.

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post #2 of 12 (permalink) Old 07-02-2019, 08:56 PM Thread Starter
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well, I got back to the car this afternoon before my parents (with the trailer to get it home), and pulled the plastic cover off the radiator.

Had a heck of a time getting the cap off. The top of the cap unscrewed and left the 'core' still in the radiator.


I pried it off, then poured about 1.5 gallons of water into it. I then looked underneath and saw this water leaking out a ways back on the passenger side.



can someone tell me why these coolant lines run to the back of the vehicle and why they are left 'out there' for something like this to happen to them?

Are replacements available?

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post #3 of 12 (permalink) Old 07-02-2019, 11:03 PM
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Coolant to rear heater core, i.e., rear heater lines.

Looks like the rear AC lines might also be damaged?? Not sure which line is which. If the AC ones are damaged, repair is going to get a lot more expensive.

Found the AC lines here:

https://gmpartsdepartment.com/parts/...iagram=GM09055

Couldn't seem to find the heater lines, but they must be on the site somewhere. You'll have to do some sleuthing.

Good luck.

PS: One time the gas cap on my 2011 came apart kind of like your radiator cap did. I put it back together and it never came apart like that again in the next 4 years we had it.

2011 2LT FWD replaced by 2017 2LT AWD

Last edited by greentraverse; 07-02-2019 at 11:06 PM.
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post #4 of 12 (permalink) Old 07-03-2019, 05:55 AM
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It is easy to figure what happened. When she hit something on the highway at that speed and blew the tire whatever she hit flew right underneath the car and hit the pipes under. It happened to me before at night. Hit something on the highway ( never knew what it was ) and did not blew a tire but did quite a lot of damages on the lower body of my former Impala. .
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Traverse 2017, chevy Uplander 2009 LT short wheelbase, Impala 2003, jeep cherokee Laredo 1990, chevy citation 1984 2.8 v6, vauxhall Firenza1972, rambler american 1964 model 330, vauxhall velox 1956 rebuilt, NSU Prinz 1961 2 cylinder micro car rebuilt, Renault Dauphine 1960 rebuilt, ford prefect 1952 ( english car with non hydrolic brakes rebuilt. Honda 1986 motorcycle in new condition and 13 travel trailers from a Boler 1300 to a Rockwood mini lite 20 feet.
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post #5 of 12 (permalink) Old 07-03-2019, 07:33 AM Thread Starter
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I’m thinking I can repair the coolant lines by getting them far enough away from the others to cut out the damaged sections. Put a mild flare in the tubing and reconnect with a section of hose. That will, at least, make it driveable. After that I’ll worry about the AC. She said the AC shut off, but I’ve read on here that it happens when the engine overheats or looses coolant, maybe? Hopefully that’s it and those tubes didn’t get punctured as well.

What troubles me is that several times I’ve looked at those tubes, before they were damaged, and thought “those are just out there waiting to get hit”. No protection whatsoever.

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post #6 of 12 (permalink) Old 07-03-2019, 08:38 AM
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Agree 100%. No protection not even insulated. Bad poor desing.

Traverse 2017, chevy Uplander 2009 LT short wheelbase, Impala 2003, jeep cherokee Laredo 1990, chevy citation 1984 2.8 v6, vauxhall Firenza1972, rambler american 1964 model 330, vauxhall velox 1956 rebuilt, NSU Prinz 1961 2 cylinder micro car rebuilt, Renault Dauphine 1960 rebuilt, ford prefect 1952 ( english car with non hydrolic brakes rebuilt. Honda 1986 motorcycle in new condition and 13 travel trailers from a Boler 1300 to a Rockwood mini lite 20 feet.
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post #7 of 12 (permalink) Old 07-03-2019, 10:34 AM
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Most vehicles have plenty of vulnerable items that would be damaged by a chunk of semi tire sitting in the road... and I've never had an issue with the heat or aircon in our '14, so not gonna say it's a poor design.

Good luck on your repairs, I'd probably be looking towards insurance with this one...

Current Vehicles:
-2015 Pilot EX-L AWD
-2014 Traverse LT2 AWD
-1961 Impala 2 Door Sedan 283 3MT

Family Muscle:
-1969 Camaro SS 350 4MT
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-1939 Ford 3 Window 2 Door (project)

Past Vehicles:
-2008 Sonata SE V6
-2012 Silverado LS 4.8 4WD EC
-2011 Rogue SL AWD
-2006 Accord Sedan EX-L K24 5MT
-2012 Tacoma DCSB V6 6MT 4WD
-2011 Civic Si Sedan
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post #8 of 12 (permalink) Old 07-03-2019, 10:56 AM Thread Starter
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I could see trying insurance, but I have a $1K deductible. Ive also heard that they’re not as likely to agree to pay if you ran over something in the road in broad daylight vs something flying off of a truck that they could go after for damages. I’m going to repair the coolant so I can get it running/driving. If AC happens to be damaged, I’ll deal with it later.

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post #9 of 12 (permalink) Old Yesterday, 12:14 PM Thread Starter
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I cut out the damaged sections with a tubing cutter, and clamped on some 5/8" heater hose. It doesn't seem to leak since I refilled the radiator and let it idle until it got hot. I tried poking the AC button, but it did not work (blinked 2 or 3 times), so I assume I have a small hole somewhere near the ones in the heater lines. My thought there was to braze them. I've never done aluminum, but I used to do copper when I worked at an AC manufacturer.

After I topped off the radiator a couple of times, I drove it a mile or so and it held at 210 or whatever the normal operating temperature on the gauge shows. Never went above it. I then changed the oil and filer and reset the monitor.

I borrowed a coworker's 'fancy' code reader and got the 'overheat' P-code. I don't recall the number, but I erased that code.

Question: How do I get the tire monitor to stop telling me I have 0psi in the blown out tire? Its not in the car, and I am now running a full sized 'spare' from another set of traverse wheels I bought a while ago.

2014 LT

Last edited by 67galax; Yesterday at 12:16 PM.
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post #10 of 12 (permalink) Old Yesterday, 12:45 PM
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Do a relearn tires with the tool that you can buy on amazon for less than $15. It will take care of your issue in less than one minute. Lots of information on u tube.

Traverse 2017, chevy Uplander 2009 LT short wheelbase, Impala 2003, jeep cherokee Laredo 1990, chevy citation 1984 2.8 v6, vauxhall Firenza1972, rambler american 1964 model 330, vauxhall velox 1956 rebuilt, NSU Prinz 1961 2 cylinder micro car rebuilt, Renault Dauphine 1960 rebuilt, ford prefect 1952 ( english car with non hydrolic brakes rebuilt. Honda 1986 motorcycle in new condition and 13 travel trailers from a Boler 1300 to a Rockwood mini lite 20 feet.
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