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Old 09-17-2008, 01:48 PM   #1 (permalink)
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Exclamation Help!!!!! P0700 and P0722

This morning the brake light, anti-lock light and SES light all came on. I think it is stuck in 2nd gear when it will move otherwise it just flashes the shift indicator and won't move. Any ideas what it can be?
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Old 09-17-2008, 02:37 PM   #2 (permalink)
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NSBU?

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Old 09-17-2008, 03:08 PM   #3 (permalink)
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Sounds like a output speed sensor, or a harness problem. The p0700 is a MIL request by the TCM and the p0722 is for the output speed sensor.
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Old 09-17-2008, 03:12 PM   #4 (permalink)
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That is the speed sensor on the transfer case? I have a spare from my old one. Anything else to look for while I am under there?
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Old 09-17-2008, 04:58 PM   #5 (permalink)
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Thats correct. Also check to make sure your harness hasn't rubbed through anywhere, and there is no damage to the connector
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Old 09-17-2008, 06:51 PM   #6 (permalink)
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I just changed the sensor and it is just the same. The plug looked ok. Is there any places to look at the wires that would be likely broken?
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Old 09-17-2008, 07:21 PM   #7 (permalink)
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I found the problem. The wires come from the speed sensor and go into a larger bundle. Another small one goes into the large bundle at the same place. I pulled on those wires and I got about a foot of wire with two ends sticking out.
Now I need to splice them back together. I don't really feel like soldering directly above my face. Is there a better way? Will butt splicers be ok?
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Old 09-17-2008, 07:44 PM   #8 (permalink)
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Butt splices will work just fine. Just mke sure to seal them off good.
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Old 09-18-2008, 10:58 AM   #9 (permalink)
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Use seom nice shrinkable butt splices. If you dont have them then put some heat shrink tube over a regular butt splice.
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Old 09-18-2008, 11:05 AM   #10 (permalink)
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I ended up just soldering them. I was able to get off to the side a little.
It is working again.

Thanks for all the replies.
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