Hi friends. Well he we go again, my truck won’t start. In my previous post I said that I don’t get anything when I turn the key. Nothing, zip, zero, nadda. I’ve changed the starter, the key switch, the firewall relay, the 150 amp circuit breaker in the rail. Thoroughly cleaned the battery posts and cables. It was starting for about 2-3 weeks but now it’s not. I don’t know anyone who’s had this problem. Any ideas please.
Pete won’t start again
Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Loaderlou, Sep 25, 2020.
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Try jumping the starter at the solenoid with a screwdriver? If that works would eliminate the starter and starter solenoid from your problems
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Just the other day starter cable was loose at the starter and wouldn't start. -
Check ignition wiring ...could be loose
Dave_in_AZ and skipgears Thank this. -
My truck was having some trouble starting recently as well. Sometimes it wouldn't engage the starter, and the times where it did, it would kind of hesitate and act sluggish. Just cleaning the connections wasn't enough, I had to cut off one of the ends to the starter cable and crimp on a new one to fix the problem. In my case it was obvious, I could see the corrosion and frayed strands where the heat shrink tubing was exposed. This was one of the wires on the starter end, not the battery side of the cable.
Last edited: Sep 25, 2020
Dave_in_AZ Thanks this. -
Thanks everyone for the comeback. I have 986000 on her. It has the original cables and when I cleaned everything in the battery compartment I could still see corrosion inside the rubber coating. I got as much a I could off but now I’m wondering if I should just go ahead and replace all the cables. What say youze guys. Yes I’m from NY
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Hey Lester. I have an MT39 with the relay on it. Which of those wires ( 3 of them ) should I jump to the big stud on the solenoid
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Sorry so many typos. 2 screwdrivers. You need to get power to the terminal that is normal energized by the key switch. On mine I have to use two screwdrivers touching each other one on starter positive and other on solenoid energizer stud.
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Gotcha.its a 2003. This new stuff is bery confusing
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