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keep eating cps sensors

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Old Apr 5, 2014 | 05:56 PM
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keep eating cps sensors

My truck for the past 3 years I've owned it. Has eaten or possibly they just go bad but about 6 cps sensors. About a week ago it the cps went bad replaced it. Now it went out again. And won't start. No tac movement so I figure its the sensor. But all the ford dealers around my school arnt open on the weekends. The cps wiring harness is clean no cuts or burns. What could it be?


Thanks ahead of time guys.
 
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Old Apr 5, 2014 | 06:11 PM
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You could have chafed wires
Grab the wire and wiggle them around then try to start it
Where are you getting the CPS from?
 
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Old Apr 5, 2014 | 06:13 PM
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Originally Posted by fordpride
You could have chafed wires
Grab the wire and wiggle them around then try to start it
Where are you getting the CPS from?
I tracked them back to where they hook in to the loom with the uvch harnesses. Ive always bought them from ford. Last one I got they warranted gonna see if they warranty this one.
 
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Old Apr 5, 2014 | 06:16 PM
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When you pull it inspect the end of it to make sure nothing it hitting/rubbing it
 
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Old Apr 5, 2014 | 06:21 PM
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Originally Posted by fordpride
When you pull it inspect the end of it to make sure nothing it hitting/rubbing it
Ill check that tomorrow in the light. The connector is clean on it. Also the cps the metal bend does that little pieces like ride on the wheel or does it sit right above? Like what im saying is does the position of the metal effect the sensor?
 
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Old Apr 5, 2014 | 07:21 PM
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No. The metal just holds in in and is also the timing mark
 
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Old Apr 5, 2014 | 09:06 PM
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Originally Posted by fordpride
No. The metal just holds in in and is also the timing mark
Alright i kept trying the 2 sensors in different lengths away from the wheel.
 
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Old Apr 6, 2014 | 10:39 AM
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if you have any scuffing or damage on the end, you have the dreaded timing wheel walk.

It's fixable, but you gotta pull the front cover.

I'd look after wiring or somethign else first. They shouldnt' go bad that much.
 
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Old Apr 6, 2014 | 11:51 AM
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Originally Posted by Talyn
if you have any scuffing or damage on the end, you have the dreaded timing wheel walk.

It's fixable, but you gotta pull the front cover.

I'd look after wiring or somethign else first. They shouldnt' go bad that much.
I dont ever remember any of the ends ever being scuffed or scratched.
 
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Old Apr 6, 2014 | 03:27 PM
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I took the wire loom of of the wires they're all clean no marks or pinches. Im going to get a new cps from ford and throw it in.


If tthere's no tach movement its from the cps right?
 
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Old Apr 7, 2014 | 10:50 AM
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I went to ford bought a new cps. and installed it. still no tach movement. I check the wires leading to the cps they are all clean. i moved them around to see if it would do anything im still not getting a tach movement.

What else should i try?
 
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Old Apr 7, 2014 | 11:28 AM
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A lose chip can cause strange thing.
Have you tried removing the chip?


Are you 100% sure the wiring is good ?
 
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Old Apr 7, 2014 | 11:34 AM
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Originally Posted by fordpride
A lose chip can cause strange thing.
Have you tried removing the chip?


Are you 100% sure the wiring is good ?
No i have not ! ill try this when the rain stops.

But looking at it visual its not soaked no cuts or scratches i was covered in wire loom before i moved it and it all broke off. the wires just run into a hole like by the water pump right ?
 
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Old Apr 7, 2014 | 12:02 PM
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You need to fish the wiring up to the top so you can check it really good
 
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Old Apr 7, 2014 | 05:37 PM
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I took the chip out and still the same. i moved all the wire loom and started from the bottom up. all the wires look clean. Any other ideas? still getting a wts but no tach movement when cranking.
 
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