rustybottoms88 Posted January 27, 2015 Share Posted January 27, 2015 I have been posting up in my project thread and appreciate the feed back and help I have gotten there but thought I would post here to see if any one can suggest something I have not tried or thought of. For more background info if you care to look is here : http://comancheclub.com/topic/44995-ems-mj/ So far I have replaced the ECU (the old one had a burnt circuit), CPS and have done the # 1,3,4,5,6,7 and 9 of Crusiers's renix tips and had the truck running for a few days. It got harder and harder to start and would not idle util warm. Then last time i had it started i drove the truck about 1/4 mile down the road i held the throttle wide open and the truck backfired, stuttered, picked up again and then back fired and then died. I looked under the truck and the muffler had blown out. It may have had a exhaust restriction? The muffler was in like new condition but some critter may have built a nest in it from it sitting for a few years. After this I have been unable to get it started. My first thought was a fuel problem so I pulled the tank and the fuel pump. The pickup sock had fell off i reinstalled it and reinstalled the tank along with a new fuel filter I then tested the fuel pressure. I am gettin around 36 psi while cranking and 39 after cranking. I have listened to the injectors with a stethoscope and they are seem to be spraying...maybe some more pronounced then others tho. I have also checked for spark at each plug and they are all getting spark. Altho i thought it seemed to be a weak arc and the plugs were wet so i replaced the cap and rotor. Still no start. Next step I am planning for this evening is to replace the plug wires and plugs. I hate to throw money at it, but so far i think most of these things needed replaced anyways. Any other suggestions would be appreciated. Link to comment Share on other sites More sharing options...
nitroxsteve Posted January 27, 2015 Share Posted January 27, 2015 Have you checked the timing? Link to comment Share on other sites More sharing options...
rustybottoms88 Posted January 28, 2015 Author Share Posted January 28, 2015 I bought new plugs they had to order plug wires. i came home pulled all the plugs turned the engine over w/o plugs then set the gap on the plugs and installed them. cranked it over and nothing. Then I busied myself with other things and installed the driveshaft. then i tried to start it again. It kinda started to hit alittle so i held the throttle open and it came even closer to starting. I cranked on it some and let the starter rest. Then finally it caught up and started. it bellowed white smoke for a min. i drove it around abit but it never got to where it would idle. It would restart if i feathered the throttle. Thoughts? Link to comment Share on other sites More sharing options...
rustybottoms88 Posted January 28, 2015 Author Share Posted January 28, 2015 I read some of progambos post over on cherokee forum and I think what I am dealing with here is possibly a severe case of dirty, leaky injectors. Link to comment Share on other sites More sharing options...
rustybottoms88 Posted March 1, 2015 Author Share Posted March 1, 2015 Just to follow up the problem was a combination of things but primarly it was dirty leaky injectors. Link to comment Share on other sites More sharing options...
ftpiercecracker1 Posted March 2, 2015 Share Posted March 2, 2015 Really appreciate you following up with us. :thumbsup: Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now