From desk to own authority part 2
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#1412
Quote:
Here are the clues.
Rough road or bumps make the engine quit.
Engine cuts out for exactly 5 seconds before all the idiot lights go out
Computer display blinks
Skip in engine at idle that matches the blink in the computer display
Amp meter reading a little over 14 volts
Anyone?
Loose wire connection at the battery or a corroded battery terminal?Originally Posted by SteveBooth
Here are the clues.
Rough road or bumps make the engine quit.
Engine cuts out for exactly 5 seconds before all the idiot lights go out
Computer display blinks
Skip in engine at idle that matches the blink in the computer display
Amp meter reading a little over 14 volts
Anyone?
was it the fuel shut off solenoid? we had a detroit that kept quiting on us and after taking it to several mechanics and spending several thousand on it me and dad figured it out one day sitting in the middle of the road near denver. of course that was on an 8V92 not a series 60 so maybe it was an electrical short.
#1417
My guess would be a loose connection. Most likely the battery cable. Either that or a loose wire touching the frame or other metal shorting it out. OK.....how did I do? 

It was a loose wire on the battery where the computer hooks up.
I started to think about when I bought new batteries and I was installing them and remember when I hooked up this small cable it sparked. I thought this was strange since everything in the truck was shut off until I realized it was the wire to the computer which needed power all the time.
Then it clicked with my background in computers. The 5 second delay was the computer booting up after a reset from the loose wire.
The 14 plus volts on the amp meter was the bad connection drawing to much current from the bad connection.
The skip in the engine was enough vibration to cause the connection to be broken for a split second which caused the computer display to blink.
It all became so clear in a second and I jumped out and opened the battery box and there it was. The nut was just about off from the 100+ miles I just did on that washboard road from Denver. Other nuts were loose also.
I forgot too that in the past I had to look at the tachometer some times to see if the engine was running. My engine is soooooooo smooth at an idle you can't feel or hear anything once it's warmed up. It's been a while since I had that and I forgot. It's back to it's old self now.
I blame myself for not opening up the battery boxes once in a while like I use to but every time I did, it was the same old thing, NOTHING, just boring old batteries.
I learned my lesson about mechanics as I'm sure most of you have. They have no logic, they don't listen to you and tend to fix things by trial and error at your expense. From now on I'm trusting what I believe and leading them in the diagnoses.
I started to think about when I bought new batteries and I was installing them and remember when I hooked up this small cable it sparked. I thought this was strange since everything in the truck was shut off until I realized it was the wire to the computer which needed power all the time.
Then it clicked with my background in computers. The 5 second delay was the computer booting up after a reset from the loose wire.
The 14 plus volts on the amp meter was the bad connection drawing to much current from the bad connection.
The skip in the engine was enough vibration to cause the connection to be broken for a split second which caused the computer display to blink.
It all became so clear in a second and I jumped out and opened the battery box and there it was. The nut was just about off from the 100+ miles I just did on that washboard road from Denver. Other nuts were loose also.
I forgot too that in the past I had to look at the tachometer some times to see if the engine was running. My engine is soooooooo smooth at an idle you can't feel or hear anything once it's warmed up. It's been a while since I had that and I forgot. It's back to it's old self now.
I blame myself for not opening up the battery boxes once in a while like I use to but every time I did, it was the same old thing, NOTHING, just boring old batteries.
I learned my lesson about mechanics as I'm sure most of you have. They have no logic, they don't listen to you and tend to fix things by trial and error at your expense. From now on I'm trusting what I believe and leading them in the diagnoses.