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2008 E450 Pats Light Blinking NO start ** SOLVED **

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Old Jul 4, 2016 | 03:21 PM
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2008 E450 Pats Light Blinking NO start ** SOLVED **

I have a RV on a 2008 e450 chassis. When you go to start it the pats light blinks really fast. Sometimes I can get it to start by opening closing doors turning ignition on and off havent found one pattern that works.

Im supposed to leave to take family on vacation tomorrow and im fighting this. Any help is appreciated greatly.

This is not a pats equipped vehicle it has just hte plain jane keys.

Ive tried changing battery to no avail.
Tried leaving cable off battery to let it reset
Tried pats reset procedure (figured was worth a try)

Symptoms:
1.) no start
2.) sometimes gauges go flat and odometer will read --------
3.) sometimes odometer will go blank
4.) abs and airbag lights come on from time to time
5.) when I come to stop at a light 4 lights will come on in bottom left and immediately go away when i start driving







Turns out that the fuse box under the dash was dangling and this caused all of the problems.
 
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Old Jul 4, 2016 | 03:22 PM
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Friend of mine seems to think its a bad speedo and or ecm.
 
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Old Jul 4, 2016 | 03:54 PM
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All of those symptoms point toward an issue with the PCM (computer), which is probably related to a bad ground or corrosion.

First thing to check is ALL of the grounds. The fact that you can get it to work after opening/closing the doors also points toward a loose ground somewhere. The vibration is probably giving you an intermittent ground.
 
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Old Jul 4, 2016 | 09:15 PM
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i went so far as to put another ground from battery to fender just to try and got same result.

I also found that its blinking a 1-6 pats code
 
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