Kickinmule Posted May 2, 2015 Share Posted May 2, 2015 Driving in to town(15 miles) and about half ways the Chief just shut off! Coasted to a safe spot. Cycled the key. Gauges up, try ignition, turns over but won't start. Pop hood, water and oil are at level, belts in place. Gave the C101 a wiggle, got down on knees, gave the fuse panel a good pressing of the fuses and for that thing in your head that says it's ok, I jiggled and tapped the ECM. Climbed in an it started right up. Great but what was the culprit? Got to work and parked. Bout 10 minutes later had to run cross town, so jumped in and headed off. Drove fine, then shut down again! Cycled the key and turned over but wouldn't start. Well obviously I now know how to fix this. So wiggled and jiggled and tapped, climbed in and started right up again. Made a u turn and quickly parked it. Later drove it home without incident. My AHah moment from this, I'm hoping, is that when I was jackin with the fuse box, I could see the brake fluid dripping from the shaft of the M/C. So question is, what circuit could be compromised at the fuse panel to kill the vehicle while driving? If possible then this matter will be fixed with eventual M/C swap and fuse panel refurb. But if not, what might my other demon be? Link to comment Share on other sites More sharing options...
Kickinmule Posted June 13, 2015 Author Share Posted June 13, 2015 I'm an idiot. The brake master is not what's leaking on the fuse panel, it's the clutch master. So to update. Didn't drive the truck for awhile, we had tons of rain and didn't want to get stranded and soaked. Finally took a chance and drove to town-almost! Comanche just cut off again after 10-12 min. drive. No hesitation no sputter just bam! Down goes Frasier. This time it wouldn't restart even after 30 minutes. Towed it home. I had previously swapped The CPS its new (Napa) it ohmed and volt checked to spec. The old CPS also spec'd out. Problem is spark. Got fuel and pressure always. Dash response always. After it shuts down have no spark upon trying to restart. Got new OE coil. Truck started and ran(would do this intermittently before new coil-random spark generation) idled for at least 30 minutes then died. Wouldn't restart on first try. Did some checking, wiggling, jiggling, praying and tried it again and it started. Some times will restart without touching a thing. No rhyme or reason for spark or no spark. Have yet to check oxygen sensor wires. I have read that those can be compromised and give issues. I will re-refresh all grounds per Cruisers tips. Questions: are any of the sensors themselves able to kill spark signal if sensor bad? I know my fuse panel has contact issues but can the clutch master fluid leak contaminate anything related to spark? Upon last shut down after truck idled for while I'm looking under dash and Ecm is very warm, trouble? I know this ghost has visited others here. Any ideas? Link to comment Share on other sites More sharing options...
Marine1Texas Posted June 13, 2015 Share Posted June 13, 2015 I would check your fuse box contacts. The clutch fluid is know to drip on back of fuse panel and cause problems. Before I moved my fuse box away from firewall it ate up my turn single connection. Could be a good place to start. My computer seems to always be warm after I run the truck. I my self never had a cut out issue like you have. another note, In another post I read some one had a bad ground to the coil and it would do something like what is happening to you as well. Where the coil is ground, it can become corroded Link to comment Share on other sites More sharing options...
1987Comanche Posted June 13, 2015 Share Posted June 13, 2015 Brake fluid eats plastic. I'd start off by pulling the fuses one by one. I think you'll be surprised at the condition of the old fuses. One of Maura's came out in 4 pieces b/c it had been eaten by brake fluid. If you caught it early enough you should be able to clean the contacts, replace the fuses, and go. Of course you need to fix the leaky clutch m/c asap too. Link to comment Share on other sites More sharing options...
reubj Posted June 13, 2015 Share Posted June 13, 2015 Sounds like classic bad pickup coil in the distributor. Link to comment Share on other sites More sharing options...
Kickinmule Posted June 13, 2015 Author Share Posted June 13, 2015 Noriyori_Kudo: gonna refresh grounds, again. Will check the coil ground for sure. 1987Comanche: not surprised at all, I've pulled em all and brightened them up and yep there is some corrosion to be dealt with. Reubj: I'm not gettin fire from the coil when it dies so I assume problem is upstream from the distributor. My main point of interest in the fuse panel is if there are any connections there that can be compromised by bad connection or corrosion that would affect spark directly or indirectly, I guess I'm asking if the vehicle can be killed by any circuit at the fuse panel? Link to comment Share on other sites More sharing options...
Kickinmule Posted June 14, 2015 Author Share Posted June 14, 2015 Reubj- I showed my ignorance again. The pickup coil aka stator, camshaft position sensor, sync pulse generator, etc. fits into this equation as you suggested. I have found the test for it and will check when I can. I hate my lack of knowledge! Rather be riding than wrenchin, rather be wrenchin than readin! Link to comment Share on other sites More sharing options...
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