ironhead03 Posted January 1, 2009 Share Posted January 1, 2009 Does anyone live close to Ashtabula that would be willing to come to my house and help me fix my 89 MJ? I would gladly pay you to help me get my starting issues fixed. I have to crank it for several minutes to get it started. After it starts and runs for a minute if i shut it off it will start again in about 5 seconds of cranking. The starting issues have put a stop to my to do list for the winter on the truck. Link to comment Share on other sites More sharing options...
Motion Offroad Posted January 1, 2009 Share Posted January 1, 2009 Jump the ballast resistor on the inside of the fender with a piece of wire. See if that solves the issue... Link to comment Share on other sites More sharing options...
bigd44889 Posted January 1, 2009 Share Posted January 1, 2009 check fuel presher key on thuck not running Link to comment Share on other sites More sharing options...
mvusse Posted January 1, 2009 Share Posted January 1, 2009 I wouldn't be surprised if you have one or more leaking injectors. With the truck off they will slowly bleed off the remaining pressure into the combustion chamber(s) and flood the engine. Do you have a lot of black (or blue) smoke ater it finally start Link to comment Share on other sites More sharing options...
ironhead03 Posted January 2, 2009 Author Share Posted January 2, 2009 I have'nt checked the fuel pressure but it has a new pump in it. My wiring harness is not the orginal one, it does'nt have the ballast resistor. And it has new o-rings on the injectors and no smoke on start up. Sometimes it will do a loud backfire before it finally starts, but not to often. Link to comment Share on other sites More sharing options...
BLHTAZ Posted January 2, 2009 Share Posted January 2, 2009 Could be a problem with the CPS. If you are gettng a backfire, that means the fuel is pumping through, but is not getting fire to burn it soon enough and when it does...boom...it goes all at once. Â It could be the CPS is dying and is slow to send its signal, could be trouble with cap, rotor, wires or plugs too. Possibly even the coil, but it really sounds to me like it's a fire problem...not fuel here. Link to comment Share on other sites More sharing options...
Pete M Posted January 2, 2009 Share Posted January 2, 2009 I had a similar problem with my 86 and it turned out to be corrosion in the power wire that fed the coil. The spark was there, but very weak. Link to comment Share on other sites More sharing options...
ironhead03 Posted January 3, 2009 Author Share Posted January 3, 2009 It has new cap,wires,rotor and plugs. I think i have an extra coil,i'll try changing it and spring for a new CPS. Could be a problem with the CPS. If you are gettng a backfire, that means the fuel is pumping through, but is not getting fire to burn it soon enough and when it does...boom...it goes all at once. It could be the CPS is dying and is slow to send its signal, could be trouble with cap, rotor, wires or plugs too. Possibly even the coil, but it really sounds to me like it's a fire problem...not fuel here. Link to comment Share on other sites More sharing options...
Pete M Posted January 3, 2009 Share Posted January 3, 2009 Just for clarification, my coil was fine. It was the power wire feeding the coil that was bad. Make sure you check for corrosion at every connection. Link to comment Share on other sites More sharing options...
ironhead03 Posted January 6, 2009 Author Share Posted January 6, 2009 I just read another thread about a crank sensor patch kit.Could this be my problem and is it something i can still buy? Link to comment Share on other sites More sharing options...
BLHTAZ Posted January 6, 2009 Share Posted January 6, 2009 I just read another thread about a crank sensor patch kit.Could this be my problem and is it something i can still buy?Yes, it can still be purchased. The Chrysler part # is 83100066 Link to comment Share on other sites More sharing options...
ironhead03 Posted January 7, 2009 Author Share Posted January 7, 2009 Does it include a crank sensor,any idea how much it is? Thanks I just read another thread about a crank sensor patch kit.Could this be my problem and is it something i can still buy?Yes, it can still be purchased. The Chrysler part # is 83100066 Link to comment Share on other sites More sharing options...
BLHTAZ Posted January 7, 2009 Share Posted January 7, 2009 Yes...it includes the sensor and it should run around $115 - $120 IIRC. 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