2014 Jeep JK temperature swinging

Hi everyone! I’m at a total loss with my 2014 Jeep Wrangler JK (3.6L) and hoping someone can point me in the right direction. It randomly started when I parked, came back out, turned it on, and the temp spiked like crazy to 238°F just idling, so I shut it down immediately. I replaced the thermostat with a genuine Mopar unit, and while it stopped overheating, it still climbs up to 228°F before dropping back down. A couple of weeks later I noticed my oil cooler was leaking, so I replaced that assembly too, but a couple of days after that, the temps are still hitting 228°F and constantly swinging back and forth even under a steady cruising load. Since then, I've put in fresh coolant, pressure tested it, and used a vacuum-fill tool to ensure zero air pockets. I've verified the water pump is spinning by checking the return flow, confirmed the cooling fan kicks on high when it gets hot (like after highway driving), and the cabin heat blows scorching hot out of all vents with zero fluctuations. I'm wondering if it could be a failing coolant temp sensor causing these abnormal swings while cruising, or maybe residual oil got into the cooling system when I changed the oil cooler—has anyone else dealt with this or have any ideas on what to check next?

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u/AdeptnessSure3734 — 6 days ago

2014 JK 3.6 L PenStar

Hi everyone! My 2014 Jeep Wrangler JK (3.6L) coolant temps are swinging wildly up to 228°F before dropping back down, even under steady cruising loads. So far, I've replaced the thermostat (genuine Mopar) and oil cooler, vacuum-filled the system, verified the water pump is circulating, confirmed the cooling fan kicks on high, and verified the cabin heat blows scorching hot. I'm stumped on why it's still fluctuating and wondering if it's a failing coolant temperature sensor or residual oil contamination from the old cooler—has anyone else dealt with this?

u/AdeptnessSure3734 — 6 days ago

Was I wrong for refusing a mobile detailing job after seeing mold and biohazard-level conditions?

I run a mobile detailing business and had a customer book an interior detail. When I arrived, the vehicle was in way worse condition than expected — visible mold, trash, used condom wrappers, heavy contamination, etc. It was also late in the evening and the condition would’ve required major extra charges and more time than originally discussed.

I told the customer professionally that I wasn’t comfortable proceeding with the job under those conditions. After that, he became extremely aggressive, said it was “the most unprofessional thing ever,” and allegedly threatened to leave mass bad reviews and damage my business reputation. Overall cussing me out and threatening to have all his friends and family “shit on my business to the point nobody calls your ass” I have part of it audio recorded.

From a business/customer service perspective, was I wrong for refusing the detail once I saw the actual condition of the vehicle?

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u/AdeptnessSure3734 — 3 months ago

Was I wrong for refusing a mobile detailing job after seeing mold and biohazard-level conditions?

I run a mobile detailing business and had a customer book an interior detail. When I arrived, the vehicle was in way worse condition than expected — visible mold, trash, used condom wrappers, heavy contamination, etc. It was also late in the evening and the condition would’ve required major extra charges and more time than originally discussed.

I told the customer professionally that I wasn’t comfortable proceeding with the job under those conditions. After that, he became extremely aggressive, said it was “the most unprofessional thing ever,” and allegedly threatened to leave mass bad reviews and damage my business reputation. Overall cussing me out and threatening to have all his friends and family “shit on my business to the point nobody calls your ass” I have part of it audio recorded.

From a business/customer service perspective, was I wrong for refusing the detail once I saw the actual condition of the vehicle?

reddit.com
u/AdeptnessSure3734 — 3 months ago