Shaun387
Member
- 24
- 27
- 13
- Location
- Orangefield, Texas
Okay, I bought a 93 M998 about a month ago. It didn't have batteries, had a terrible oil leak, but ran according to the previous owner.
I got it home, put new batteries in it, it'd crank over, but not start. Hit it with a shot of ether and it ran......put out white smoke for about 20 seconds, but cleared up. Found the oil leak and fixed it. It'd restart easily when it was hot. When cold, it took ether, would start with white smoke for 20 seconds, clear and run great. Come to find out, the glow plug portion of the Nartron EESS was fried. All the glow plugs still ohm'd out good. Decided to run an independent relay and push button for the glow plugs. FYI, I'm in south east Texas where it's usually pretty warm this time of year.
While waiting for the relay to come in, the stock on/run/start switch got stuck in the run position for a few days and killed the rest of the EESS. Opened it up and there was water in the EESS....independently tested the solenoid inside the box and it was no longer good. Decided to get rid of the circuit board since I was already doing the glow plug push button. Ordered another "run" solenoid. While waiting for parts again, I decided I should change the fuel filter and water separator. Electrical parts came in, wired it up, and primed the new filter as stated in the TM.
It took it forever to start, but did, sounded okay too. It would idle for about 3-5 minutes, bobble and die. It would start right back up. Figured it was getting any air in the line out. Did this about 3 or 4 times, and the last time it died, I just left it down and would continue the next day.
The next day comes........doesn't start at all, not even with a shot of ether. I was getting a strong stream of fuel coming out of the filter to the IP, but it didn't seem the IP was pumping out. Both the cut off solenoid and cold advance solenoid were "clicking" fine. Took off the injection line at the easy to get to passenger cylinder, cranked it, but no fuel was coming out....zero. Ended up cracking each injection line at each cylinder (just the easy to get to one completely separated from the injector). Took a ton of cranking, but was finally getting "spurts" of fuel out the one I disconnected.
Does that sound right? Just spurts of fuel? Anyway, tightened them all back up, but still no start. Took a break for an hour or so. Came back, and it cranked and ran. I have no idea why it decided to start now. It would still occasionally die during idling . I bumped the throttle lock up a bit, and let it go like that for about 20 minutes. Drove around the neighborhood for about another 20 minutes, thought it was all good, went back home. Killed it, let it sit for about 30 minutes, loaded up the dogs for a final neighborhood ride, rode for 5 minutes, came to a stop sign and it just died again. Couldn't get it to restart for anything, not even with ether. I'm stumped.
Couple of things I've done as well. Removed both check valves near the fuel tank for supply and return. While the return was loose under the vehicle, I connected a hose and ran to a bucket....cranked it and was getting fuel to the bucket. I also installed a clear hose on the return coming off the IP to visually see flow.
Where should I start now?? It almost acts like the cut off solenoid shuts it down, even though it's still getting 24v and engaged. I did take the cover off the IP and it seems the thing that slides for the metering valve moves freely.
EDITED to add I also installed the secondary grounding harness as recommended by most members here....
I got it home, put new batteries in it, it'd crank over, but not start. Hit it with a shot of ether and it ran......put out white smoke for about 20 seconds, but cleared up. Found the oil leak and fixed it. It'd restart easily when it was hot. When cold, it took ether, would start with white smoke for 20 seconds, clear and run great. Come to find out, the glow plug portion of the Nartron EESS was fried. All the glow plugs still ohm'd out good. Decided to run an independent relay and push button for the glow plugs. FYI, I'm in south east Texas where it's usually pretty warm this time of year.
While waiting for the relay to come in, the stock on/run/start switch got stuck in the run position for a few days and killed the rest of the EESS. Opened it up and there was water in the EESS....independently tested the solenoid inside the box and it was no longer good. Decided to get rid of the circuit board since I was already doing the glow plug push button. Ordered another "run" solenoid. While waiting for parts again, I decided I should change the fuel filter and water separator. Electrical parts came in, wired it up, and primed the new filter as stated in the TM.
It took it forever to start, but did, sounded okay too. It would idle for about 3-5 minutes, bobble and die. It would start right back up. Figured it was getting any air in the line out. Did this about 3 or 4 times, and the last time it died, I just left it down and would continue the next day.
The next day comes........doesn't start at all, not even with a shot of ether. I was getting a strong stream of fuel coming out of the filter to the IP, but it didn't seem the IP was pumping out. Both the cut off solenoid and cold advance solenoid were "clicking" fine. Took off the injection line at the easy to get to passenger cylinder, cranked it, but no fuel was coming out....zero. Ended up cracking each injection line at each cylinder (just the easy to get to one completely separated from the injector). Took a ton of cranking, but was finally getting "spurts" of fuel out the one I disconnected.
Does that sound right? Just spurts of fuel? Anyway, tightened them all back up, but still no start. Took a break for an hour or so. Came back, and it cranked and ran. I have no idea why it decided to start now. It would still occasionally die during idling . I bumped the throttle lock up a bit, and let it go like that for about 20 minutes. Drove around the neighborhood for about another 20 minutes, thought it was all good, went back home. Killed it, let it sit for about 30 minutes, loaded up the dogs for a final neighborhood ride, rode for 5 minutes, came to a stop sign and it just died again. Couldn't get it to restart for anything, not even with ether. I'm stumped.
Couple of things I've done as well. Removed both check valves near the fuel tank for supply and return. While the return was loose under the vehicle, I connected a hose and ran to a bucket....cranked it and was getting fuel to the bucket. I also installed a clear hose on the return coming off the IP to visually see flow.
Where should I start now?? It almost acts like the cut off solenoid shuts it down, even though it's still getting 24v and engaged. I did take the cover off the IP and it seems the thing that slides for the metering valve moves freely.
EDITED to add I also installed the secondary grounding harness as recommended by most members here....
