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Just wanted to share some data on this from a poll I did in the FB group around thermostat issues on the Hurricane.

Of 29 respondents with I6 HO (GW), 3 reported having issues with the thermostat and 26 reported no issues. (10.3%)
Of 55 respondents with the I6 SO (W), 3 reported having issues with the thermostat and 52 reported no issues. (5.5%)

Anecdotal reports seem to confirm that the Hurricane stuck thermostat issue seems much more promiment on the HO version, but the SO is not entirely immune.
 
Just wanted to share some data on this from a poll I did in the FB group around thermostat issues on the Hurricane.

Of 29 respondents with I6 HO (GW), 3 reported having issues with the thermostat and 26 reported no issues. (10.3%)
Of 55 respondents with the I6 SO (W), 3 reported having issues with the thermostat and 52 reported no issues. (5.5%)

Anecdotal reports seem to confirm that the Hurricane stuck thermostat issue seems much more promiment on the HO version, but the SO is not entirely immune.
I can't imagine that this isn't purely a production line failure, probably an acceptable margin for error. But when you end up stranded it is stressful, then the delays compound the issues while they refuse warranty repairs but if you get im an accident the repair facilities paying cash directly for the part seem to get priority
 
Just wanted to share some data on this from a poll I did in the FB group around thermostat issues on the Hurricane.

Of 29 respondents with I6 HO (GW), 3 reported having issues with the thermostat and 26 reported no issues. (10.3%)
Of 55 respondents with the I6 SO (W), 3 reported having issues with the thermostat and 52 reported no issues. (5.5%)

Anecdotal reports seem to confirm that the Hurricane stuck thermostat issue seems much more promiment on the HO version, but the SO is not entirely immune.
It would be helpful to also track mileage of those who responded. Perhaps one can draw a correlation between thermostat failure and miles.
 
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Discussion starter · #28 ·
@darrin yes the symptom of consuming anti freeze is indicative of a blown head gasket or cooling system leak. It could be a leak up inside the dash or in a hidden spot. Back to the dealer yee shall go.
All these are adverse affects of a engine that recently over heated due to a stuck thermostat!
The bad news is every time it goes into the dealership, it is released with more damage than it went it. Now I am looking for a new dealership.
 
My issue was resolved after 20 business days out of service. However the GW is drinking antifreeze which is indicating that it is leaking internal. No external leaks are found.
I think I may be seeing this as well. Got my first warning pop up today, coolant temp high or something like that. I pulled off in a parking lot, coolant was probably 1 1/2" below min line. Didn't immediately check the temp until after I turned it off and let it rest a bit and it was at 240F after 4-5 minutes with the hood popped up.

I picked up more coolant and got it to the middle of the expansion tank (when it was cool) where that bulging line is, and then did 10 minutes of around town driving with the A/C on and came back home at 239F. Better, but I still think something is going on with the cooling system. Had it scheduled for service on Friday anyways so we'll see what they find.. but service is about 10 miles away via highway driving.. so pretty nervous about that, might try and find city streets to get there so I have some pull-off options.

No codes from the BT scanner that I have other than an old P068A which has been there for a while..

The car had the thermostat replaced about 10k miles ago as well..
 
Just thought I'd add a somewhat related data point to this conversation in case it helps anyone.. I bought my '22 GWS2O used, and warranty records show thermostat replacement around 10k miles.

At around 20k miles, I got a high coolant temperature warning, and pulled the car over and let it cool off. It was relatively low on coolant, about a 1.5" below min fill line. I found a dealer and purchased the appropriate coolant and filled to max-fill line. After this the car was drivable, but only for about 6-7 miles at a time as coolant temps would approach 240-250F. Temperatures would decrease by a few degrees at standstill (stop lights, etc..)

After the dealer looked at it they found a small leak in a hose leading to the thermostat (part # 68448246AB). They did note coolant was low, so it was definitely going somewhere. The part was on a slight back-order, will take a few days to arrive, but hopefully should be resolve after that. Car is still with the dealer (been about 5 days now), but will update once it's resolved.

Side note, they did diagnose a failed auxiliary battery and replaced it under warranty. I had noticed inconsistent auto start stop activation. Sometimes it just never activated despite me never manually turning the feature off, which was fine by me, but at other times it would auto start/stop, so I'm guessing this is related.
 
My issue was resolved after 20 business days out of service. However the GW is drinking antifreeze which is indicating that it is leaking internal. No external leaks are found.
Posted an update below, but it was a leaking hose leading to the thermostat. Part 68448246AB. Still in the shop, but I'm hoping that was the only related cooling issue and that they don't find anything else cooling-wise after replacing it. It was causing a noticeable drop in coolant levels over a few days, but didn't seem visible to me when I checked with a flashlight from the engine bay.
 
Hope you didn’t cook the motor - be sure they do a compression test (shows of head caskets/watped)
Typically if the 3.0L is driven to destruction because of over heating there will be virtually no compression, the engine will no longer run. What causes these thermostats to 'stick' is part of the plastic arm that moves the ball valve (these are not your typical spring over diaphragm style T-Stats) breaks, and the ball valve simply no longer moves because there is nothing connecting the wax pellet motor to the ball valve itself.

Image
 
Discussion starter · #34 ·
Typically if the 3.0L is driven to destruction because of over heating there will be virtually no compression, the engine will no longer run. What causes these thermostats to 'stick' is part of the plastic arm that moves the ball valve (these are not your typical spring over diaphragm style T-Stats) breaks, and the ball valve simply no longer moves because there is nothing connecting the wax pellet motor to the ball valve itself.

View attachment 2525
So until the design is change, we can expect more failures?
 
Warning ignorance on full display here! What is the first thing an owner should expect indicates a thermostat issues (e.g. leaking, loss of power, smoke, etc.....) Does anything exacerbate the thermostat going bad......driving hard, high revs, mileage, etc.?
 
Discussion starter · #36 · (Edited)
Warning ignorance on full display here! What is the first thing an owner should expect indicates a thermostat issues (e.g. leaking, loss of power, smoke, etc.....) Does anything exacerbate the thermostat going bad......driving hard, high revs, mileage, etc.?
Engine temp will shoot through the roof leading to permanent engine damage if thermostat is stuck closed. If the thermostat is stuck open, the vehicle in-cabin heater will not heat the vehicle, but I found additional information on Reddit:
"Your car is meant to be ran at operating temperature. Since your thermostat is stuck open, it’s taking much longer than usual to get to that temperature. This alone is going to be hard on nearly every moving component in your engine.
On top of that, your car attempts to warm itself quicker by advancing engine timing and using a richer air fuel mixture. Both of these things are going to be bad for gas mileage.
Nothing is going to fail immediately, but you’re taking miles off of its lifespan the Longer you spend outside of proper operating temperature
"
 
today our 13000 mile wagoneer had this overheating issue and broke down on the road. not sure if its related to this thermostat issue but probably highly likely.. Really sucks as this car has been having issues here and there and now it completely broke down. Started questioning my decision of going with this purchase.
 
today our 13000 mile wagoneer had this overheating issue and broke down on the road. not sure if its related to this thermostat issue but probably highly likely.. Really sucks as this car has been having issues here and there and now it completely broke down. Started questioning my decision of going with this purchase.
High Output or Standard Output engine?
 
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