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pumperdog
Joined: 03 Jan 2007
Posts: 3
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| Posted: Wed Jan 03, 2007 10:24 am Post subject: digital speedo, engine power loss |
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I have an 05 cab over w/ a 320 hp cummins.
The digital speedo that gives you trip miles hrs and rd. mi. and needle speed quit working.
There is a sener on top of tranny can anyone tell me how to test this system before I spend 250.00 for a new speedo?
Also when I turn key on and wait for gauges to set before I start truck sometimes the ceck eng. lite comes on sometimes not the dealer couldnt find a code.
Once in a while when gearin up the motor wont let me go over 30 mph in sixth gear, I have to pull over and turn off truck to reset before continuing.
Any help would be great thanks |
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bob h
Joined: 15 Oct 2006
Posts: 664
Location: Nb
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| Posted: Wed Jan 03, 2007 5:43 pm Post subject: |
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help us help you;
cab over what? |
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pumperdog
Joined: 03 Jan 2007
Posts: 3
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| Posted: Thu Jan 04, 2007 7:40 am Post subject: sorry folks cabover |
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Its a caboo
thanks in advance |
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bob h
Joined: 15 Oct 2006
Posts: 664
Location: Nb
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| Posted: Thu Jan 04, 2007 7:49 am Post subject: Re: sorry folks cabover |
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pumperdog wrote: Its a caboo
thanks in advance
the intermittent loss of engine light makes this problem pretty obvious...
...thanks for letting us know make/model of truck
happy trails! |
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Mackman
Joined: 14 Sep 2005
Posts: 2295
Location: Concordville PA
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| Posted: Fri Jan 05, 2007 6:47 pm Post subject: |
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| :D |
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Splitshifter
Joined: 19 Jun 2006
Posts: 644
Location: Right here
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| Posted: Fri Jan 05, 2007 8:49 pm Post subject: |
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| http://www.classadrivers.com/phpBB2/viewtopic.php?p=223838#223838 |
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bob h
Joined: 15 Oct 2006
Posts: 664
Location: Nb
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| Posted: Sun Jan 07, 2007 3:00 pm Post subject: |
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Splitshifter wrote: http://www.classadrivers.com/phpBB2/viewtopic.php?p=223838#223838
? |
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Splitshifter
Joined: 19 Jun 2006
Posts: 644
Location: Right here
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| Posted: Mon Jan 08, 2007 7:04 am Post subject: |
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bob h wrote: Splitshifter wrote: http://www.classadrivers.com/phpBB2/viewtopic.php?p=223838#223838
?
This seems to be the same basic situation as described in the post in the link, but here is my comment copied & pasted:
Quote: Had that happen a few years ago on a Mack.
Speed sensor on trans output shaft failed. Speedo registered zero MPH, engine was totally devoid of power.
I would assume that without a MPH signal, the ECM thinks the truck isn't going anywhere, and wont allow the engine to receive full fuel.
Replaced the speed sensor and all was well. |
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bob h
Joined: 15 Oct 2006
Posts: 664
Location: Nb
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| Posted: Mon Jan 08, 2007 7:36 am Post subject: |
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Splitshifter wrote: bob h wrote: Splitshifter wrote: http://www.classadrivers.com/phpBB2/viewtopic.php?p=223838#223838
?
This seems to be the same basic situation as described in the post in the link, but here is my comment copied & pasted:
Quote: Had that happen a few years ago on a Mack.
Speed sensor on trans output shaft failed. Speedo registered zero MPH, engine was totally devoid of power.
I would assume that without a MPH signal, the ECM thinks the truck isn't going anywhere, and wont allow the engine to receive full fuel.
Replaced the speed sensor and all was well.
YES, i realized that later on, sorry for the confusion (my confusion ;0) |
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