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Old 01-05-2021, 10:41 PM   #1
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Brand: Thor Motor Coach
Model: Challenger 37 LX
State: Florida
Posts: 296
THOR #7853
Transmission line fitting crack

Hey guys,
I discovered a hairline crack in one of the fittings on the transmission cooler lines on our Challenger. It actually looks like a manufacturer defect more than a stress crack. Drips very slow, maybe 2 or 3 drops per minute. I ordered a new line from the local Ford dealer, backordered with no definite ship date.

I'm thinking because it's such a small leak and the fitting is clean that I'm going to try JB Weld to fix it .

Any thoughts? Thanks.



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Old 01-05-2021, 11:02 PM   #2
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Brand: Thor Motor Coach
Model: Hurricane 29M
State: Texas
Posts: 1,644
THOR #11781
Back in the old days, I had a 1984 GMC that had a cracked fitting on a trans cooler line. It didn't drip unless the engine was running. The trans would shudder when going into overdrive when the fluid was down 1 quart. I drove it from South Carolina to Texas, towing a VW bug and only lost 1/2 quart. The point to my story is you should be okay until the line comes in. Just monitor the fluid level and trans temp.
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Old 01-06-2021, 02:59 AM   #3
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Brand: Thor Motor Coach
Model: Miramar 34.2
State: New York
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THOR #3584
I had this situation about 2 months ago. I ordered the part and made the change. Not hard to do, make sure you purchase the Ford transmission tool to separate the male fitting from the female end. Cost is about $10.00. Expect about 2 or 3 quarts to pour out.
Good luck
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Old 01-06-2021, 03:45 AM   #4
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Brand: Thor Motor Coach
Model: Aria 3901
State: Idaho
Posts: 585
THOR #9660
I have had good luck with JB weld on leaks like that. Just make sure you clean the area very well with rubbing alcohol to get all the old oil off prior to application.
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