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Thread: 2001 Marathon heating issue

  1. #41
    Join Date
    Sep 2017
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    Greenfield
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    Another problem cropped up today after following Marathons advice. Based on the front heat exchanger bleed valve sucking coolant
    rather than bleeding coolant they had me switch the hose on the galley heat exchanger thinking that someone may have got the lines crossed up when the exchanger was moved when the aftermarket slide was installed. I switched the 2 line today. Not a fun job. I had better bleed flow at this heat exchanger but the front one is still sucking coolant. Any ideas for me?


    Now another issue is the Wabasto kicking out after less than a minute of running. I gave up working on it today so I don't know if air was introduced into the line when I switched the lines. Any ideas here?

    Cal

  2. #42
    Join Date
    Mar 2013
    Location
    Chicago
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    1,921

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    Cal I dare ask where u r sitting with this problem.

    What have u done recently?

    I know it's no consoling comment but there was a lot of early 90s country coaches out there that I could never figure out the valves for those Webasto systems either. Really really complicated stuff sometimes.

    Where u at with this???
    1990 Peterbuilt 377
    3406 B Caterpillar
    9 Speed Roadranger
    708 243 7871

  3. #43
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    Sep 2017
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    Greenfield
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    33

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    Problem solved. After 3 months and hundreds of hours I finally found the problem 2 weeks ago. The return line buried behind a big clump of wiring going into the chasis of the coach was kinked at a 90+ degree angle. Same as shutting of the garden hose by bending to stop the flow. I would not have found it had I not been tracing a wire. What a challenge but we have heat.

    Cal

  4. #44
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    Mar 2013
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    Chicago
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    That's great news. Do you think that was done by the converter or that happened after the fact?
    1990 Peterbuilt 377
    3406 B Caterpillar
    9 Speed Roadranger
    708 243 7871

  5. #45
    Join Date
    Sep 2017
    Location
    Greenfield
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    It appears to been done when the after market slides were installed. It was pulled too tight and the first time hot coolant went through the hose it softened and kinked. The coolant hoses they used is the clear H- Temp hose used hot water applications in home plumbing. They should have used a wire cage type hose protector when going around a corner.

    Some people don't think.

    Cal

  6. #46
    Join Date
    May 2012
    Location
    Beverly Hills
    Posts
    2,379

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    Cal,

    Thanks for the update. Surely, that was not an easy one to troubleshoot.


    Gil and Durlene
    2003 H-3 Hoffman Conversion

  7. #47
    Join Date
    Dec 2012
    Location
    La Quinta
    Posts
    145

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    What do you mean, After market slides?

    Later
    bv

    Bernie & Deborah
    07 Marathon XLII #1059
    12 Featherlite Stacke
    2019 Marathon X3 #1291
    Coming July 2018

  8. #48
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    Sep 2017
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    Greenfield
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    Not original slides but installed after the coach was delivered.

  9. #49
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    Mar 2013
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    Chicago
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    By who? Valid?
    1990 Peterbuilt 377
    3406 B Caterpillar
    9 Speed Roadranger
    708 243 7871

  10. #50
    Join Date
    Sep 2017
    Location
    Greenfield
    Posts
    33

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    My check engine light came on today during a trip. The turbo would not kick in for a short time. Then it came back and we were under full power. Does anyone have any advice?

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