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HollisterBus
Senior Member
USA
55 Posts |
 Posted - 03/26/2010 : 3:59:30 PM
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| We have a 2001 international that had the Range Inhibit come on today. During the route while in reverse, it would not go anywhere. You can put it in drive, the bus would go sometimes! I pulled out the 40 amp fuse in the battery compartment and put it back in then it worked. Thats how we got it back to the garage. I cleaned connections at the battery of where the fuse wire went into but when I started the engine and put it in reverse and wouldn't work only in drive. Has anyone come across then problem! |
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Harrison Fire
Senior Member
United States
175 Posts |
Posted - 03/27/2010 : 05:59:23 AM
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Allison 545?
Have seen the NSBU switch turn on the range inhibit.
Easy to change.
Stole this from somewhere else:
"NSBU is the Neutral Safety Back Up switch, it helps tell the the computer which gear your in, if you look at the side of your tranny where the linkage attaches you'll see a black or tan plastic thing with one or two connectors plugged into it."
HF |
My Fleet? (6) 93/99 IH 3800 Thomas and Blue Bird, Hydraulic Brakes, Manual and Auto Trans, (10) 00/06 FS65 Thomas Air Brake and Auto Trans, (2) 06 C2 Thomas and (2) 09/10 IC CE 300, Plus 3 more from another District |
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B. Busguy33
Top Member
USA
3444 Posts |
Posted - 03/27/2010 : 11:08:45 AM
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quote:
Allison 545?
Sounds like an Allison 2000 to me. |
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bluebirdvision
Top Member
USA
1081 Posts |
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HollisterBus
Senior Member
USA
55 Posts |
Posted - 03/27/2010 : 1:31:07 PM
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| yes!I found out it is a Allison 2000. I still think it could be the NSBU that was suggested from Harrision Fire but it will take the Allison Transmission Software to find the problem.! I think it could be other things too. It is scheduled for diagnostic Wednesday! |
Tony HatField |
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Harrison Fire
Senior Member
United States
175 Posts |
Posted - 03/27/2010 : 2:52:39 PM
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At least I got the Allison part right.
Lots of those switches got replaced under warranty.
Yours might be one that's eligible.
HF |
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bwest
Administrator
United States
3820 Posts |
Posted - 03/29/2010 : 05:31:35 AM
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| Be sure to check the electrical connections on the transmission. I have had those come loose enough to loose connection. (I've even had them come clear off) I take mine off and put dielectic compound in there and put it back together and put a wire tie around the whole conection so it can not come off again. |
Bryan |
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HollisterBus
Senior Member
USA
55 Posts |
Posted - 03/29/2010 : 3:36:49 PM
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| bewest we did that today! Our mechanic cleaned all connections and it still did the same thing! What is weard is in the morning or if you haven't driven for a long period of time, it will go into reverse. But once you drive the bus for about 5 to 10 minutes it won't work in reverse. It will work in drive but slips in slow and kind of hard. Any other idea's? |
Tony HatField |
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bwest
Administrator
United States
3820 Posts |
Posted - 03/30/2010 : 05:26:07 AM
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quote:
Originally posted by HollisterBus
bewest we did that today! Our mechanic cleaned all connections and it still did the same thing! What is weard is in the morning or if you haven't driven for a long period of time, it will go into reverse. But once you drive the bus for about 5 to 10 minutes it won't work in reverse. It will work in drive but slips in slow and kind of hard. Any other idea's?
Slips, humm, that sounds like a valve problem (could still be electronic though). I'll check a source today and post if I find out anything.
Edit: My source says you might have a solinoid stuck in the trans. He thinks that you are stuck in 3rd and the slipping you are fealing is a "stall" meaning your tourque converter is "slipping".
Good luck. |
Bryan |
Edited by - bwest on 03/30/2010 05:31:16 AM |
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sambrutay
Advanced Member
United States
271 Posts |
Posted - 03/30/2010 : 05:53:34 AM
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| When you turn the key off, or pull the fuse this resets the TCM. your trans will work properly until it creates the fault again. The trouble we have had with the Allison 2000 is metal debris in the valve body. Usually from the stator or bearings in the convertor coming apart. Allison replaced all of out torque convertors in our 2002 IC's because of the problem. I have recently had the problem flare up again in my 2006 IC buses with the 2500 PTS. Good luck with it. |
Bruce |
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JustinB
Advanced Member
United States
490 Posts |
Posted - 03/30/2010 : 06:45:33 AM
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| Pressure washing can contaminate the synthetic fluid with water. The connections internal to the transmission are not sealte. If enough water gets into the fluid, data signals become crossed. Pressure washing around the NSBU & the main harness inlet will cause this. TranSyn will suspend the water. Once a saturation point has been met, signals will start to misfire. |
I may not know the answer but I can usually find who does. |
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HollisterBus
Senior Member
USA
55 Posts |
Posted - 04/07/2010 : 3:57:20 PM
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| well we found the problem with the tranny! Bad pump in transmission and a wore out clutch! we get our bus back Friday. What a pain! I mean the cost! ouch!!!! |
Tony HatField |
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Wolf0r
Top Member
USA
2181 Posts |
Posted - 03/29/2011 : 09:45:42 AM
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| I just got one of our route buses in today with same symptoms described above. Intermittant No Reverse, and sometimes No Forward. Range inhibit lamp will come on for self check at KOEO but sometimes it doesn't. I am trying to get my Nexiq to communicate. Any idea what protocol? J1939 or 1708? It's a 2002 GMCV with a CAT. |
“The good thing about science is that it's true whether or not you believe in it.”
Neil deGrasse Tyson |
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Wolf0r
Top Member
USA
2181 Posts |
Posted - 03/30/2011 : 08:16:32 AM
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| I think that mine is fixed. I installed a new NSBU and it has been ok so far. I still need to figure out what is the deal with my Nexiq IQ not communicating. Do the early GMCV allison 2000 use J1939 or j1708? I think I may need to sell all this crap and get a laptop and translator. I can read Gen3 allisons just fine, and the @!#$* want more money for Gen4. Pissed! |
“The good thing about science is that it's true whether or not you believe in it.”
Neil deGrasse Tyson |
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slippert
Top Member
USA
630 Posts |
Posted - 03/30/2011 : 09:24:58 AM
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| being a 2002 it should be 1708 but i was also told they can be 1939, apparently it's in that area that they switched? this is just what my allison guy has told me in the past. as for getting a laptop they are just as frustrating at times. |
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Wolf0r
Top Member
USA
2181 Posts |
Posted - 04/01/2011 : 09:52:55 AM
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| Now I have another one in here crippled up. It's a 2000 QBRE with a dead keypad. Only has 500,000 actual miles. |
“The good thing about science is that it's true whether or not you believe in it.”
Neil deGrasse Tyson |
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Thomasbus24
Administrator
USA
4559 Posts |
Posted - 04/01/2011 : 12:25:37 PM
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quote:
Originally posted by Wolf0r
Only has 500,000 actual miles.
Tragic...when will these companies start making products that hold up!?!?!?! hehehe |
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Topic |
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Range Inhibit
