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re: Place your bets- Why is this car overheating?
Posted on 4/21/26 at 4:18 pm to LSUtoBOOT
Posted on 4/21/26 at 4:18 pm to LSUtoBOOT
Just got inspection report back. I am preparing my anus thusly.
quote:
Testing the Hydrocarbons, tech found exhaust gasses entering the coolant system and tested up to 223PPM and rising and desired measurement should be less than 50ppm, indicating internal damage to engine and needing to be replaced.
2
Posted on 4/21/26 at 4:27 pm to deeprig9
quote:
Testing the Hydrocarbons, tech found exhaust gasses entering the coolant system and tested up to 223PPM and rising and desired measurement should be less than 50ppm, indicating internal damage to engine and needing to be replaced.
How does that test know that it is not just a blown head gasket?
Posted on 4/21/26 at 5:08 pm to highcotton2
quote:
How does that test know that it is not just a blown head gasket?
It doesn't. I had a conversation with him. I get HG quote in the morning, they are closing up shop now.
Posted on 4/21/26 at 5:11 pm to deeprig9
Does anyone here know the shop book cost of replacing a head gasket on 2015 Cherokee 2.4L?
Posted on 4/21/26 at 6:01 pm to deeprig9
quote:
Cherokee
Here’s your problem
Posted on 4/21/26 at 6:26 pm to highcotton2
quote:
How does that test know that it is not just a blown head gasket?
It is a blown head gasket… or a cracked block
Posted on 4/21/26 at 6:30 pm to deeprig9
$12,000 for a new motor in a 2016 Dodge Durango at the dealership, if that helps.
Posted on 4/21/26 at 9:00 pm to deeprig9
Fan clutch is fricked or bad water pump.
Posted on 4/21/26 at 9:02 pm to deeprig9
Just drive it with the heater on. Congratulations on your “backup radiator”.
Posted on 4/21/26 at 9:09 pm to Boudreauboudreaugoly
Transmission.
Posted on 4/21/26 at 9:53 pm to deeprig9
Your engine will take a long time to get to operating temperature when sitting at idle.
If the engine is hot and the upper radiator hose is cold, the thermostat is probably not opening.
I’m assuming the heater blows hot when turned on while overheating, so it’s probably not an air pocket.
When you did the radiator was the fluid nasty looking or did any sludge come out when you drained the fluid?
Was the radiator clogged or did it spring a leak?
If the engine is hot and the upper radiator hose is cold, the thermostat is probably not opening.
I’m assuming the heater blows hot when turned on while overheating, so it’s probably not an air pocket.
When you did the radiator was the fluid nasty looking or did any sludge come out when you drained the fluid?
Was the radiator clogged or did it spring a leak?
Posted on 4/21/26 at 9:57 pm to Woolfpack
quote:
Was the radiator clogged or did it spring a leak?
Back when it was replaced, everything was fine. We went on vacation with my wife's vehicle and came back to a pool of radiator fluid under my car in the driveway.
Also, tech said today hydrocarbons in the fluid are very high, bad head gasket or whatever else could cause that.
Posted on 4/21/26 at 10:07 pm to deeprig9
Sorry to hear that. Was hoping thermostat.
Posted on 4/21/26 at 10:08 pm to Woolfpack
quote:
Sorry to hear that. Was hoping thermostat.
#metoo
Posted on 4/21/26 at 10:10 pm to deeprig9
quote:
Also, tech said today hydrocarbons in the fluid are very high, bad head gasket or whatever else could cause that.
If they got a "very" positive block test it is most likely a head gasket. The other common causes are generally less likely and usually significantly more expensive.
I hope I am wrong, but a head gasket is likely an 8+ hour job on that engine so while it may be the cheapest fix it is unlikely to be cheap.
Posted on 4/21/26 at 10:17 pm to Obtuse1
quote:
If they got a "very" positive block test it is most likely a head gasket. The other common causes are generally less likely and usually significantly more expensive.
Their tester said 250 ppm on the hydrocarbons and it's supposed to be under 50. Sent me pics of the tester reading.
Posted on 4/21/26 at 10:25 pm to deeprig9
quote:
Their tester said 250 ppm on the hydrocarbons
Definitely combustion gases in the cooling system.
I am sure they have, but you also need to check the oil to make sure it isn't milky. If it is at all milky you will want to do a second oil change after just a few miles. The tech should take care of that.
Posted on 4/22/26 at 12:58 am to deeprig9
Sorry to hear this latest news about your Jeep. I' m sending best of luck your way going forward.
I will check back on this thread to see how things are progressing.
I will check back on this thread to see how things are progressing.
Posted on 4/22/26 at 7:06 am to deeprig9
Chrysler is the TEMU of car builders.
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