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Old 10-25-2012, 08:39 PM   #1
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VDC on Freightliner

I have a 2002 Winnabago Journey with 5.9 Cummins and Allison 2000 Transmission. According to all the post the VDC gives trouble on these couches. I recently had a alternator light to come on and stay on a few minutes but went out. Latter I had the rear air gauge show 0 pressure and the front showed 110. All tanks had air and I was able to release breaks and drive without a problem. In route home the jake brake stopped working even though the switch was in the on position. The light on the instrument panel would flash but no jake brake. Also transmission light came on. The question is does the VDC have anything to do with the transmission and jake brake. I took the couch to Freightliner and they have found no problems so they sent the couch to Allison. I am waiting on Allison diagnosis. Any help would be appreciated. I am new to the forum.

2002 Winnabago Journey 32T
5.9 Cummins and 2000 Allison
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Old 10-25-2012, 08:45 PM   #2
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vdc

Quote:
Originally Posted by Ccole2953 View Post
I have a 2002 Winnabago Journey with 5.9 Cummins and Allison 2000 Transmission. According to all the post the VDC gives trouble on these couches. I recently had a alternator light to come on and stay on a few minutes but went out. Latter I had the rear air gauge show 0 pressure and the front showed 110. All tanks had air and I was able to release breaks and drive without a problem. In route home the jake brake stopped working even though the switch was in the on position. The light on the instrument panel would flash but no jake brake. Also transmission light came on. The question is does the VDC have anything to do with the transmission and jake brake. I took the couch to Freightliner and they have found no problems so they sent the couch to Allison. I am waiting on Allison diagnosis. Any help would be appreciated. I am new to the forum.

2002 Winnabago Journey 32T
5.9 Cummins and 2000 Allison

just had the vdc changed on my 2000 damon and you could hit a bump and all gauges would do funie stuff.
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Old 10-25-2012, 08:55 PM   #3
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To see how your instruments work, click the link below. It is a Freightliner service bulletin that describes your coach's instrument system.

http://ww2.justanswer.com/uploads/go...44_sbu5412.pdf

Some VDC's have been known to have cold solder joints. Look in the files section of this IRV2 forum and you'll find a document describing how to repair these cold solder joints. Repairing the cold solder joints is an inexpensive fix compared to buying a new VDC. I am still running the original VDC in my 2000 year Freightliner chassis with no problems, so some but not all of them fail.

You'll also find some other posts about the VDC's in the Freightliner section of this forum.

Keep us posted when you find the actual problem

Fred
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Old 10-26-2012, 06:37 AM   #4
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Just for the sake of mentioning it, look under the dash, just left of steering wheel, and see if you see a ground stud welded to the steering column support with about 6-8 white ground wires on it. It's probably a 5/16" stud (1/2" wrench). I've found this loose on 2 different coaches but I can't recall what chassis or coach builder.
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Old 10-31-2012, 07:34 PM   #5
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Thanks for the comments. I am new to the forum but I have enjoyed reading comments. The Allison tranny coded as checked U 2104 and U 2105 indicating the there was a data link error on the J 1939 wiring. Allison checked all connections, cleaned them and thought that they were going to rewire the transmission wires but test drove the MH after hours work and testing as well as $1,300 and the tranny after test driving wouldn't code again. Hopefully they have the issue fixed...... I plan on checking the items noted in the posted comments now that I have MH home. Thanks for comments.

2002 Winnabago Journey
5.9 Cummins with 2000 Generation 3 Transmission
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