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Old 06-27-2022, 01:33 PM   #1
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Tiffin Owners Club
Join Date: Dec 2012
Location: Lake Wales, FL
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2022 35CP Allegro Bus Unknown Leak

Can someone identify what the part is leaking in the picture, Iím not sure what fluid is leaking? We have only had the coach a month and put this on our punch list for the dealer to check. When the delivery coordinator saw the photo, she asked me what is that? I said I have no idea but itís obviously leaking.
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Old 06-27-2022, 04:46 PM   #2
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Looks like a hydraulic oil cooler to me.
John and Sue from W. Texas
2001 DSDP, 3126B Cat

"the Oilfield PAID me to retire, so I did" :-)
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Old 06-27-2022, 05:23 PM   #3
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Jnsnwt is spot on. Would venture to say the weld where the lines connect has a crack in in. Don’t ask me how I know. I would call tiffin and get a qualified mobile repair service to fix. You don’t want that part to fail on the road.
2018 Phaeton 44OH
2023 Chevy Traverse Toad
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Old 06-27-2022, 05:31 PM   #4
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Tiffin Owners Club
Join Date: Nov 2019
Location: DFW
Posts: 83
Had same problem with our 2018 Allegro Red, took it to a Freightliner dealer, repaired under warranty.
2022 Phaeton 44OH
Livingston, TX
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Old 07-04-2022, 08:45 AM   #5
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Join Date: Feb 2014
Location: Elverta, CA
Posts: 195
Transmission cooler

The 2 blue lines come from the transmission. The 2 big hoses on the ends are the radiator coolant.

I had the same problem and had the cooler replaced twice. Both leaks were just barely dripping. I think the second time it may have been the radiator connection to the cooler. I did the second repair myself and things have been good since. I was having to add a gallon of antifreeze every year (clue I had a leak). Be sure to check your coolant level.

Job is not too tough, just 4 hoses and 4 bolts. Just messy. I drained the radiator to make things easier. Send me a note if you want more details on changing it.
Brad & Dianna
2017 Allegro Bus 37AP
2015 Jeep Cherokee
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allegro, allegro bus, leak

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