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Old 02-21-2009, 04:57 PM
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Help no wait to start no tach

Ok so my truck died this morning. Just recently replace the CPS but when cranking it it doesn't show any rpm. Does this mean CPS is dead ?



late 99 7.3

Update, This morning got to working on it checked the wires for the CPS er CMS whatever its called everything looks ok then with more reading I decided to check more and no wait to start light is coming on and the truck doesn't act like it wants to start or run at all

Last edited by Papers; 02-22-2009 at 09:56 AM.
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Old 02-21-2009, 05:01 PM
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more than likely. Did you get the updated cps the last time you bought one?
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Old 02-21-2009, 05:24 PM
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it is definitely a different design, smaller in the area that plugs into the engine itself.
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Old 02-22-2009, 09:58 AM
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someone give me some ideas please. also my glow plug relay is kinda jacked up could this cause any of this?

I have to jumper it some times with pliers to get the motor to start "to cheap to buy a new one for a while"
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Old 02-22-2009, 10:23 AM
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oh and no trouble codes
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Old 02-22-2009, 10:38 AM
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Quote:
Originally Posted by Papers View Post
Ok so my truck died this morning. Just recently replace the CPS but when cranking it it doesn't show any rpm. Does this mean CPS is dead ?



late 99 7.3

Update, This morning got to working on it checked the wires for the CPS er CMS whatever its called everything looks ok then with more reading I decided to check more and no wait to start light is coming on and the truck doesn't act like it wants to start or run at all
last i checked, no wait to start light on a 7.3 means Fuse #22 is blown. that fuse supplies power to the PCM.
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Old 02-22-2009, 11:49 AM
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just checked that fuse and swapped the #30 location relay still no wait to start light
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Old 02-22-2009, 02:35 PM
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Turned out to be maxi fuse #24 very vague description power block or something like that. Found it by going through every fuse under the hood.

Don't know what caused it to fry but will keep a spare 30a now
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