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Truck stalling when trailer brakes engaging

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Old 08-12-2008, 09:20 PM
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Question Truck stalling when trailer brakes engaging

New to the site, and afriend told me this wasthe place to go for any problem.
I have a 96 PSD, and normally runs just fine, but when i hook up my dump trailer, and the brake controller is over the 2.0 setpoint the truck will stall on me. The problem is pretty constant, but ince in a blue moon it will do fine. I'm talking maybe one out of 30 starts or so. Any help is appreciated this problem is killing me!!!
 
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Old 08-12-2008, 09:34 PM
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what kind of controller is it and how is it wired?
 
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Old 08-12-2008, 09:36 PM
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put a new cam sensor in it.....I have seen it before.
 
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Old 08-12-2008, 09:42 PM
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it is a reese digital controller, and it plugs directly into the factory harness.
Could it really be the cps, the truck runs fine when it is not hooked to a trailer?
 
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Old 08-12-2008, 09:45 PM
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i'll take tim's word for it, i have personaly never seen it but you learn something new every day. the cam sensor is only 15 bucks now.
 
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Old 08-12-2008, 09:51 PM
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I will pick one up on Fri, but any advice on where to check if that does not fix the problem??
 
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Old 08-12-2008, 09:53 PM
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scan to see if you are setting any codes.
 
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Old 08-12-2008, 10:10 PM
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will my super chips programmer be sufficient?
 
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Old 08-12-2008, 10:18 PM
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i have never had a problem with one.
 
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Old 08-12-2008, 10:21 PM
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thanks dude, I appreciate the help very much!
 
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Old 08-12-2008, 10:26 PM
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no problem
 
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Old 08-13-2008, 07:48 AM
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any body else have any suggestions?
 
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Old 08-13-2008, 08:17 AM
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I have the same problem and started a thread on this about 2 months ago that went 2+ pages. The consensus then was also the CPS. My situation is identical to yours....only stalls when the trailer brakes are being used. Its not the controller because I have tried 2 different units in the factory connection, and even used the controller in another vehicle and it was fine.

So it has to be either the CPS or a bad connection/short in the light/brake connector under the bumper. I have both replacement peices and will start with replacing the connector socket first. Then I will replace the CPS.

But for now you can do what I do, if your load isn't too bad disconnect the controller and go without trailer brakes Or put the truck in nuetral before you start braking and keep your foot on the accel to about 1500rpm to keep her running during stops (pain in the a$$)
 
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Old 08-13-2008, 08:44 AM
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sowaxeman, I was hoping you would see that I saw your thred last night in a search, and was wondering what you did to fix it. Let me know what you come up with, I am replacing CPS on Friday, and since you are replacing the plug. Why don't we let each other know whats what.
 
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Old 08-13-2008, 08:58 AM
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Works for me, but you will beat me to it for sure as my truck is seldom used so I doubt I get to the plug or CPS anytime soon But I will definitely be curious to hear if the CPS is the fix when you get it done.

Also, anything you can share on how to change the CPS when you are done would be appreciated....easy, hard, any tricks, etc....
 


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