MJPeabody88 Posted February 25, 2019 Share Posted February 25, 2019 So I purchased a 88 Comanche 4.0 auto 2wd short bed pioneer in great shape. Has 266k miles so as you can imagine, the motor had quite a bit of oil residue. Sprayed the engine and bay with degreaser and hosed it down. Now she turns over but doesn’t start up and run. I’m very mechanically incline. Mainly with boats and anything to do with commercial fishing. I don’t want to just dive right in and start tearing down things in possibly the wrong direction. I’ve checked Some of the electrical connections. Prior to all this. Before I bought the truck, it had sat for 8 months. Luckily it wasn’t full on old fuel. Was above empty and at the time of purchase, I put 5 gallons in and the following day, topped it off. Was on the way to do a few things to my boat, approaching a red light, she cuts off on me. It starts back up fine, turned around, and hit the auto parts store on the way home. sorry for the novel but trying not to leave anything out. Any advice would be greatly appreciated Link to comment Share on other sites More sharing options...
yxmj Posted February 25, 2019 Share Posted February 25, 2019 Start simple.....remove a plug or use an extra plug ground it to the block....turn it over.....do you have spark? Turn the key on.....without starting it....can you here the fuel pump turn on then off? Answer those 2 questions and we can help from there.... Link to comment Share on other sites More sharing options...
ComancheKid45 Posted February 25, 2019 Share Posted February 25, 2019 Unplug and plug back in the Crank Position sensor. Link to comment Share on other sites More sharing options...
Minuit Posted February 25, 2019 Share Posted February 25, 2019 Check for moisture in the distributor cap. Link to comment Share on other sites More sharing options...
MJPeabody88 Posted February 25, 2019 Author Share Posted February 25, 2019 Fuel pump kicks on/off. Getting spark. After spraying the engine bay down, having starting problems, I let sit to dry out for DAAYYSS And Still no luck. Changed the plugs. Still nothing. Tried to start it. Miraculously starts up ???? Link to comment Share on other sites More sharing options...
MJPeabody88 Posted February 25, 2019 Author Share Posted February 25, 2019 Checked the distributor. Dry sounds like she is losing power. Kinda stumbling. Bad distributor all together? thanks for the input guys! Link to comment Share on other sites More sharing options...
RangerDB Posted March 4, 2019 Share Posted March 4, 2019 Do you have the ceramic ballast resistor on the driver sidefender? If so, make sure you didn't knock a wire of it while cleaning or it simply may have went bad. You can by pass it with a jumper wire to check. If it is bad, it will turn over, kick but won't start. Mine went on my son's 88 Eliminator. We changed distributor cap, plugs, wires and were almost convinced it was the fuel pump. A friend who is a mechanic suggested bypassing the ceramic resistor and sure enough it took right off. Link to comment Share on other sites More sharing options...
MJPeabody88 Posted March 6, 2019 Author Share Posted March 6, 2019 I will surely check it out. This is my first Jeep so everything is a learning curve. Thanks for the tip here's a pic of my Comanche Link to comment Share on other sites More sharing options...
Jeep Driver Posted March 6, 2019 Share Posted March 6, 2019 53 minutes ago, MJPeabody88 said: I will surely check it out. This is my first Jeep so everything is a learning curve. Thanks for the tip here's a pic of my Comanche Wow, clean truck! Link to comment Share on other sites More sharing options...
MJPeabody88 Posted March 7, 2019 Author Share Posted March 7, 2019 Thank you thank you!! She’s in great condition to have 266k on the clock. Really looking forward to adding some goodies over the summer Link to comment Share on other sites More sharing options...
MJPeabody88 Posted March 7, 2019 Author Share Posted March 7, 2019 On 3/4/2019 at 3:49 PM, RangerDB said: Do you have the ceramic ballast resistor on the driver sidefender? If so, make sure you didn't knock a wire of it while cleaning or it simply may have went bad. You can by pass it with a jumper wire to check. If it is bad, it will turn over, kick but won't start. Mine went on my son's 88 Eliminator. We changed distributor cap, plugs, wires and were almost convinced it was the fuel pump. A friend who is a mechanic suggested bypassing the ceramic resistor and sure enough it took right off. Is this resistor absolutely a must have or can you simply run a jumper? Link to comment Share on other sites More sharing options...
RangerDB Posted March 7, 2019 Share Posted March 7, 2019 You can run a jumper, but I believe it prevents too much voltage going to the distributor. They aren't very expensive, it would probably be better to have it in the circuit. Link to comment Share on other sites More sharing options...
Jeep Driver Posted March 7, 2019 Share Posted March 7, 2019 7 minutes ago, RangerDB said: You can run a jumper, but I believe it prevents too much voltage going to the distributor. They aren't very expensive, it would probably be better to have it in the circuit. Fuel pump, not distributor. He can bypass it. Link to comment Share on other sites More sharing options...
fiatslug87 Posted March 7, 2019 Share Posted March 7, 2019 I've heard people say the TPS does not like getting wet. I have no first hand experience of this but if the TPS is not working/adjusted properly it could feel as loss of power. Link to comment Share on other sites More sharing options...
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