Jamesilondon
New member
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- Location
- Jamesville North Carolina
Afternoon everyone! I'll start by saying that I don't know much about diesels, but have worked on vehicles for a few years now and think I understand the basics fairly well. My brother picked up his 1984 M1008 back about six months ago and since it has been a great vehicle. The guys he got it from had already done some fixer upper work to it (mostly cosmetic and cleaning) and was pretty much all stock and unmolested as far as we could tell. Were all about upgrades and repairs so when it ran out of diesel one day ( fuel gauge didn't work and didn't know about it till it was too late) we decided to go ahead and do some replacements and upgrades. All the belts were fairly worn so we replaced them along with the Dog head starter relay upgrade, new glow plug relay, glow plugs and a voltmeter that replaced the old one that didn't work. The typical wires and grounds were an issue as well so my brother spent several hours cleaning grounds and replacing some wires and end connections as well as battery cables. All in all most of what we replaced needed to be changed out and once we bled the fuel lines and filter and replaced the gauge and sending unit, she cranked and ran like a champ. She did this great for about three more months until one day..dun dun dun dun........she quit.
Details: Drove truck and ran fine and everything was normal. Come home and park truck to gather fishing gear, come back 30 minutes later, glow plug relay sounds, wait light goes off, turn the key and all I get is a loud click (A single click, not multiple clicks like starter solenoid) then nothing. All power is gone. No lights, horn, dash lights or anything. So obviously check batteries, check grounds from batteries, make sure there isn't anything pouring out the side of the block but everything seems normal. Batteries test out good with 12 or so volts individually and 24 volts at the back and buss bars. Started checking for power after that from the Buss Bar, to the Junction Block, then at the Glow Plug relay. Everything seemed normal (to me anyways) so I started looking at Steel Soldiers and got kind of good at searching for fuseable links that might be burned out or checking for burned wires and burn marks because it just seemed like it was absolutely an electrical problem. I also noticed that both alternator belts and the drive belt were loose. We tightened them properly when we installed them, but could this be a cause of an issue with the truck?
This has been about four weeks ago and since I'm in school I don't have much time to work on it. So far, I have changed the Dog Head Starter relay since it was still under warranty from NAPA ( I said what the **** it cant hurt), I have changed the Ignition switch on the steering shaft because I couldn't get any readings of any kind off of it with a multimeter, and I went ahead and replaced some ground wires and cables with new stock I had laying around the shop. I made a break through when I pulled and replaced some spades from the engine side fuse block. Of course that's where I lost my power readings when I was tracing it through the system so I decided all that old dielectric grease and gummed up mess inside the fuse block was interrupting some things. 45 toothpicks, 15 Q Tips and some electric parts cleaner later I had the whole deal ready to go back in and NOTHING! It still didn't work, but somewhere in the course of cleaning all that again and replacing the spades on the ends of some corroded wires inside the fuse block I finally restored power to the vehicle accessories and the dash lights.
So I went to start her and the glow plug relay sounded, the wait light came on and went off while GEN 1 and GEN 2 with Oil Light came on and stayed lit. Then turn the key and it doesn't do anything this time either. All lights except the GEN 2 go off and the Parking Brake and Coolant light come on and stay on with the key held in start position. So I began doing the "Vehicle will not start, no audible sound from starter solenoid" diagnostics from the TM. So far I am stumped. The only thing I could seem to find from the diagnostics section of the TM basically has led me to assume that their is a problem with the purple wire from Starter Solenoid to Fuse panel to Starter Relay. Before I start digging out 10 feet of wire from all over this thing looking for a fuseable link or burned end or something, I just need some feedback.
PS: I already pulled the starter and jumped the posts and she spins with a vengeance. Plus it worked fine before. Last note as well; I have read in posts that when the key is engaged to start the vehicle, some people hear the Starter relay engage; I have listened several times and never can hear the relay engage. ???????
Details: Drove truck and ran fine and everything was normal. Come home and park truck to gather fishing gear, come back 30 minutes later, glow plug relay sounds, wait light goes off, turn the key and all I get is a loud click (A single click, not multiple clicks like starter solenoid) then nothing. All power is gone. No lights, horn, dash lights or anything. So obviously check batteries, check grounds from batteries, make sure there isn't anything pouring out the side of the block but everything seems normal. Batteries test out good with 12 or so volts individually and 24 volts at the back and buss bars. Started checking for power after that from the Buss Bar, to the Junction Block, then at the Glow Plug relay. Everything seemed normal (to me anyways) so I started looking at Steel Soldiers and got kind of good at searching for fuseable links that might be burned out or checking for burned wires and burn marks because it just seemed like it was absolutely an electrical problem. I also noticed that both alternator belts and the drive belt were loose. We tightened them properly when we installed them, but could this be a cause of an issue with the truck?
This has been about four weeks ago and since I'm in school I don't have much time to work on it. So far, I have changed the Dog Head Starter relay since it was still under warranty from NAPA ( I said what the **** it cant hurt), I have changed the Ignition switch on the steering shaft because I couldn't get any readings of any kind off of it with a multimeter, and I went ahead and replaced some ground wires and cables with new stock I had laying around the shop. I made a break through when I pulled and replaced some spades from the engine side fuse block. Of course that's where I lost my power readings when I was tracing it through the system so I decided all that old dielectric grease and gummed up mess inside the fuse block was interrupting some things. 45 toothpicks, 15 Q Tips and some electric parts cleaner later I had the whole deal ready to go back in and NOTHING! It still didn't work, but somewhere in the course of cleaning all that again and replacing the spades on the ends of some corroded wires inside the fuse block I finally restored power to the vehicle accessories and the dash lights.
So I went to start her and the glow plug relay sounded, the wait light came on and went off while GEN 1 and GEN 2 with Oil Light came on and stayed lit. Then turn the key and it doesn't do anything this time either. All lights except the GEN 2 go off and the Parking Brake and Coolant light come on and stay on with the key held in start position. So I began doing the "Vehicle will not start, no audible sound from starter solenoid" diagnostics from the TM. So far I am stumped. The only thing I could seem to find from the diagnostics section of the TM basically has led me to assume that their is a problem with the purple wire from Starter Solenoid to Fuse panel to Starter Relay. Before I start digging out 10 feet of wire from all over this thing looking for a fuseable link or burned end or something, I just need some feedback.
PS: I already pulled the starter and jumped the posts and she spins with a vengeance. Plus it worked fine before. Last note as well; I have read in posts that when the key is engaged to start the vehicle, some people hear the Starter relay engage; I have listened several times and never can hear the relay engage. ???????
