xjustinx Posted March 23, 2016 Share Posted March 23, 2016 I started my 89 Comanche up after head gasket replacement. Truck idled for about 10-15 secs but was making a noise. I jumped out to see what it was and then it died. Ended up being the fan chewing up my winch positive lead :fs1: Got pushed in the way I guess. So I unhooked the cable went back to start it and nothing. Just cranks over and over. I tried the ole unhook the cps and still nothing. I checked the fuseable links and grounds, nothing seems out of the ordinary. I tried to research and I'm thinking Ecu or Icm. Am I on the right track or way off? Link to comment Share on other sites More sharing options...
xjustinx Posted March 23, 2016 Author Share Posted March 23, 2016 Update: Took the Icm out and had it tested. Its good so thats out now. Link to comment Share on other sites More sharing options...
Egm89 Posted March 24, 2016 Share Posted March 24, 2016 Test the cps, u may have pulled it w/o noticing. Link to comment Share on other sites More sharing options...
xjustinx Posted March 24, 2016 Author Share Posted March 24, 2016 Test the cps, u may have pulled it w/o noticing.Actually I did late yesterday AC volts read .1-.2 so I'm guessing it's the culprit. You think the short at the battery would have fried it though? Link to comment Share on other sites More sharing options...
xjustinx Posted March 24, 2016 Author Share Posted March 24, 2016 Well the cps didn't do it. Fiddled with it a little more and I can't feel the injectors clicking when cranking took plug out and have fire but can't smell gas. I do have fuel pressure at rail. Link to comment Share on other sites More sharing options...
86FUBAR Posted March 25, 2016 Share Posted March 25, 2016 I have a different engine (3.4 v6) and what not but I had the same thing happen a wile back and it smoked the 1 and only other ground on the engine ! The one on the left rear cylinder head to fire wall ! Fixed that and added some more , still can't believe I missed that during the engine swap but o well . Purrs like a sick cat once again! Worth a check . Link to comment Share on other sites More sharing options...
Egm89 Posted March 25, 2016 Share Posted March 25, 2016 Â Test the cps, u may have pulled it w/o noticing.Actually I did late yesterday AC volts read .1-.2 so I'm guessing it's the culprit. You think the short at the battery would have fried it though?First of all sorry for not answering earlier quito busy in this life, and if thats the reading on the cps, thats a no start condition, check on cruiser tips for refreshing grounds Link to comment Share on other sites More sharing options...
xjustinx Posted March 25, 2016 Author Share Posted March 25, 2016   Test the cps, u may have pulled it w/o noticing.Actually I did late yesterday AC volts read .1-.2 so I'm guessing it's the culprit. You think the short at the battery would have fried it though?First of all sorry for not answering earlier quito busy in this life, and if thats the reading on the cps, thats a no start condition, check on cruiser tips for refreshing grounds I have done all the tips. First thing I did when I got the truck. I actually got a can on starting fluid today, shot it in the intake and she fired up for a sec. So it def is fuel related now. Link to comment Share on other sites More sharing options...
cruiser54 Posted March 26, 2016 Share Posted March 26, 2016 Look for bad fusible links at the starter relay. Â Â Link to comment Share on other sites More sharing options...
xjustinx Posted March 26, 2016 Author Share Posted March 26, 2016 Look for bad fusible links at the starter relay. Â Â I did look through those pretty well. A bad link would be pretty apparent right? Link to comment Share on other sites More sharing options...
cruiser54 Posted March 26, 2016 Share Posted March 26, 2016 Not always............. Link to comment Share on other sites More sharing options...
xjustinx Posted March 27, 2016 Author Share Posted March 27, 2016 Not always.............Which link would be fuel injector related in the spider of links on the relay? Link to comment Share on other sites More sharing options...
ComancheKid45 Posted March 28, 2016 Share Posted March 28, 2016 Links have to be tested with a multimeter ;) Link to comment Share on other sites More sharing options...
xjustinx Posted March 28, 2016 Author Share Posted March 28, 2016 Ok tested all the fusible links, all showed low resistance. I also was able to test with another ecu. Still nothing. Rechecked my ground at the block and its tight still. Link to comment Share on other sites More sharing options...
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