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post #1 of 5 (permalink) Old 02-04-10, 06:58 PM Thread Starter
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2003 SD w/ 6.0 PSD tranny codes 0706 and 0707

I just had the high pressure oil pump replaced on this truck because it died on me. My mechanic then calls me and asks if I have ever had tranny issues, which I haven't. Turns out, now my truck runs great, but the transmission has a mind of it's own. Cold start it, and it works great until it warms up. It then shifts down into 2nd or 3rd gear and there it stays. The tow/haul light flashes, and it idles at high rpms. Shut it off and it doesn't start back. Anybody ever heard of anything like this?? Throws tranny codes 0706, and 0707.

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post #2 of 5 (permalink) Old 02-04-10, 08:06 PM
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Re: 2003 SD w/ 6.0 PSD tranny codes 0706 and 0707

Those codes are for the range sensor. There could be a wiring problem or the sensor itself. Try unplugging it adn cleaning the connection. There could be water intrusion. When you have it disconnected, use di-electric grease on the pnis and see if that helps.

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post #3 of 5 (permalink) Old 02-05-10, 12:37 PM Thread Starter
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Re: 2003 SD w/ 6.0 PSD tranny codes 0706 and 0707

My only question is, would the range sensor create the shifting problem??
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post #4 of 5 (permalink) Old 02-05-10, 02:44 PM
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Re: 2003 SD w/ 6.0 PSD tranny codes 0706 and 0707

Yes they can.

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post #5 of 5 (permalink) Old 02-06-10, 04:23 PM Thread Starter
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Re: 2003 SD w/ 6.0 PSD tranny codes 0706 and 0707

Ok thanks, I'll replace that sensor, hopefully it will work. Getting kind of tired of spending money on this truck...
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