Hey guys,
Took the car (2018 Mustang Ecoboost) on its first highway trip this weekend. No issues going, big issues coming home. It's about 110 miles of various highways.
Did some 'spirited' slow traffic passing on a few occasions, and got about 5 miles from home and the transmission started acting indecisive on which gear it wanted to stay in. Flipped the gauges over to transmission temperature and it was at 215. Just kept a steady throttle, and it kept climbing to 225. I took the next exit and stopped.
I smelled transmission fluid as soon as I opened the door. There are a few drops hanging from the cross brace, and the exhaust flex joint was smoking.
I raised the hood, turned the heater on full blast and let it idle. It slowly dropped to about 195, so I continued home. It pretty much stayed at 195 for the next few miles of stop & go. Got home, and the cooling fan ran for several minutes after shutdown.
My discovery 10 minutes later: I took off the radiator shroud, and just started feeling around. The cooler in the middle is STONE cold on its top, and as far down as I can stick my fingers. Shouldn't this thing be burning hot?
I was assuming that this transmission may be one of the units that made it out of the factory underfilled, but I'm now also wondering why the transmission cooler wouldn't be even a little warm, if its full of overheated fluid. Thermostat not working?
I've never had an automatic overheat when I'm playing around passing slow traffic on the highway.
2018 with 31,000 miles, warranty start date was March 2018, so I'm assuming this will be a warranty thing, whatever the problem may be.
Any insights?
Took the car (2018 Mustang Ecoboost) on its first highway trip this weekend. No issues going, big issues coming home. It's about 110 miles of various highways.
Did some 'spirited' slow traffic passing on a few occasions, and got about 5 miles from home and the transmission started acting indecisive on which gear it wanted to stay in. Flipped the gauges over to transmission temperature and it was at 215. Just kept a steady throttle, and it kept climbing to 225. I took the next exit and stopped.
I smelled transmission fluid as soon as I opened the door. There are a few drops hanging from the cross brace, and the exhaust flex joint was smoking.
I raised the hood, turned the heater on full blast and let it idle. It slowly dropped to about 195, so I continued home. It pretty much stayed at 195 for the next few miles of stop & go. Got home, and the cooling fan ran for several minutes after shutdown.
My discovery 10 minutes later: I took off the radiator shroud, and just started feeling around. The cooler in the middle is STONE cold on its top, and as far down as I can stick my fingers. Shouldn't this thing be burning hot?
I was assuming that this transmission may be one of the units that made it out of the factory underfilled, but I'm now also wondering why the transmission cooler wouldn't be even a little warm, if its full of overheated fluid. Thermostat not working?
I've never had an automatic overheat when I'm playing around passing slow traffic on the highway.
2018 with 31,000 miles, warranty start date was March 2018, so I'm assuming this will be a warranty thing, whatever the problem may be.
Any insights?