mercer transportation

Also maybe check your key ignition connections and wiring. Good luck let us know what you find out.

 

Last year, Mercer found a cracked shoe on my truck, I was kinda embarrassed as I thought I knew my truck very well. Just showed me I needed to get better and inspect from different angles and positions.

 

When you shut off the ignition the fuel shut off solenoid allows a spring loaded plunger to block the fuel flow. The plunger, a small piston, can get crusty or the spring washer can wear out. What engine do you have?

Frank

 

An ISX

 

Ok, got stopped for the night, pulled into the truck stop, it didnt turn off at all until I put it in gear. Cranked it up and tried again, same thing. Then I drove around the lot once, parked, and it turned right off like normal. Even odder was, after i had to turn it off by putting it in gear, the ABS light came on on the dash, but not the trailer..... wondering if I dont have a broken or dirty ground somewhere.

Edit: cranked it back up and it turned off like normal again.... hmmmm

 

The fuel shut off is on the left rear side of the block above the egr valve. Its near the fuel actuators and has a single wire. My truck will be back midday tomorrow and I'll send you a picture.

Everything you've mentioned describes a fuel shut off not shutting off and not an electrical problem. The good news is that its a cheap fix that anyone who knows which end of a screwdriver is which can do.

Frank

 

fuel solenoid more than likely.

 

I'm going to be home Wednesday, if it's just the fuel shut off, will it be ok until then and I can work on it at home or will I need to track one down this weekend?

I'm going to check the ground to the starter and the ignition relay as well tomorrow morning because that's 2 things I know how to check already and from what I've read tonight, what you've described and those 2 things are the 3 most common culprits of the problem.

 

It can wait until you get home. When mine started acting up I took the cover off the solenoid and put more of a wave in the spring washer to make it more "springy". That fixed it for about 2 weeks. I also needed to stall it to shut down the engine for a few days until I could get a new one.

Frank

 

Im gonna guess ur around 600k miles on that isx? Seems to be when they go bad for some reason. Least they are only about $150