rustybottoms88 Posted March 11, 2015 Share Posted March 11, 2015 Well yesterday the MJ decided it really liked it at the Grocery store. Luckily my brother and his family were eating pizza at the pizza joint next door. It all started when The MJ died on me as I was pulling out of the feed store and it died when i came to a stop to pull out and then it did one of those long cranking episodes. It smelled like gas and it would hit and want to start but acted like it just couldnt catch up. I cranked and cranked and it finally fired up. i drove it to Emily's work and shut it off. Emily came out side i started it no prob. We drove to grocery store and shut it off. Emily went in to the store did some shoppiing and then came out to the truck, it started up no prob. We pulled up to the stop sign and it dies and I crank and crank and then we push it back to a parking spot were i crank on it until the battery starts to fade. I am about to give up and it starts. I pull back up to the stop sign feathering the gas ever so slightly and the SOB dies again. The battery is done at this point I surrender and go eat some pizza. Basically it seems as if it is flooding randomly? sigh We have been driving it for five days with out much problem besides the heater controls not working and I thought I noticed the ac pump kicking on although it was not set to a/c? Someone mentioned fuel return line maybe leaky or clogged?? Things I have replaced: injectors, FPR, ECM, spark plugs, cap and rotor, spark plug wires, fuel filter, IACV and CPS. For details on the truck see my project thread. Any help to get it going so I don't have to trailer it home would be greatly appreciated. Thank you! Link to comment Share on other sites More sharing options...
gogmorgo Posted March 11, 2015 Share Posted March 11, 2015 The a/c will come on in defrost, supposedly it helps dehumidify the air. Sorry I can't help you with the rest. Link to comment Share on other sites More sharing options...
shelbyluvv Posted March 11, 2015 Share Posted March 11, 2015 Sounds like a classic CPS death to me Sometimes you can unplug the connector, spit in the connection and then plug it back in to get them to run. Don't ask me why it works but for some reason it does. If it fires drive directly to the house and buy a new CPS. Link to comment Share on other sites More sharing options...
Incommando Posted March 11, 2015 Share Posted March 11, 2015 Sounds like a classic CPS death to me That is what I would suspect. Link to comment Share on other sites More sharing options...
rustybottoms88 Posted March 11, 2015 Author Share Posted March 11, 2015 Sounds like a classic CPS death to me Sometimes you can unplug the connector, spit in the connection and then plug it back in to get them to run. Don't ask me why it works but for some reason it does. If it fires drive directly to the house and buy a new CPS. DANG! I guess my new one didn't last long. Thanks will try that! Link to comment Share on other sites More sharing options...
Rockfrog Posted March 11, 2015 Share Posted March 11, 2015 There have been many reported cases of CPS's being faulty out of the box. Hence why most recommend a factory part to replace them. Link to comment Share on other sites More sharing options...
sinkrun Posted March 11, 2015 Share Posted March 11, 2015 Mopar brand CPS is the only way to go. I get mine from ebay a little cheaper than the local dealers. Link to comment Share on other sites More sharing options...
Minuit Posted March 11, 2015 Share Posted March 11, 2015 The factory CPS finally died at ~146k on my truck. A cheap replacement stranded me a month later. Always buy quality sensors. Link to comment Share on other sites More sharing options...
rustybottoms88 Posted March 11, 2015 Author Share Posted March 11, 2015 The factory CPS finally died at ~146k on my truck. A cheap replacement stranded me a month later. Always buy quality sensors. Copy that. Will see about getting one from the stealership. Thanks for all the help. I will report back with results. Link to comment Share on other sites More sharing options...
rustybottoms88 Posted March 11, 2015 Author Share Posted March 11, 2015 Dealership says they can not get one. Link to comment Share on other sites More sharing options...
Jeep Driver Posted March 11, 2015 Share Posted March 11, 2015 Standard Brand is pretty good. Or get NAPA's brand. Link to comment Share on other sites More sharing options...
rustybottoms88 Posted March 11, 2015 Author Share Posted March 11, 2015 Standard is what is in it now. Fixxing to head to the store see if i can spit and get it started to drive home. Link to comment Share on other sites More sharing options...
88mjblue Posted March 12, 2015 Share Posted March 12, 2015 I think it was Cruiser54 that recommended this one: http://www.amazon.com/Standard-Motor-Products-PC307-Crankshaft/dp/B000C7Y7YG/ref=sr_1_6?s=automotive&ie=UTF8&qid=1426120178&sr=1-6&keywords=pc307 You're saying this CPS by Standard is poor quality? Anybody else have any experience with this one? Link to comment Share on other sites More sharing options...
rustybottoms88 Posted March 12, 2015 Author Share Posted March 12, 2015 I think it was Cruiser54 that recommended this one: http://www.amazon.com/Standard-Motor-Products-PC307-Crankshaft/dp/B000C7Y7YG/ref=sr_1_6?s=automotive&ie=UTF8&qid=1426120178&sr=1-6&keywords=pc307 You're saying this CPS by Standard is poor quality? Anybody else have any experience with this one? If the the CPS is the problem then yes the standard I put on didn't last long. Just got home no amount of spit would get er to fire. Link to comment Share on other sites More sharing options...
rustybottoms88 Posted March 13, 2015 Author Share Posted March 13, 2015 Replaced CPS in parking lot. Still nota. I will be trailering it home tomorrow or Saturday. Link to comment Share on other sites More sharing options...
rustybottoms88 Posted March 17, 2015 Author Share Posted March 17, 2015 Got her home on the haul of shame Friday. It set in front of the garage until Saturday afternoon. I was fixxing to go pickup the wife from work and I thought well I will crank on it for kicks. It turned over a few times and then it fired for a min and died. I cranked on it alittle more then it started but was running pretty rough. I popped the hood and heard a hissing noise. I had unhooked a vacline while i was tinkering with it in the grocery store parking lot. I also noticed the map sensor vac line was in two pieces. I had used a small piece of vac line to splice it together when I broke it changing injectors. I put the vac line back on the intake and the splice back together for the map sensor and it picked up and idled like a new one. I put a vac gauge on it and the needle was reading rock steady at 18#. I backed it up and then pulled it into the garage where I shut it off. I went and picked up the wife from work in my Superduty. When we got back home I started and shutoff the MJ several times. Fast forward to Monday morning. I start it up and let it warm up before I take off to work. It idles but then will bog down alittle and then pick back up. I take off down the drive way and make it our first pond, thats about a 1/4 mile from the house. It dies without warning, won't start back and I am walking back to the house. I get home yesterday afternoon put a new tighter fitting vac line over the broken map sensor line just to be safe and it won't start. I tow it back to the house where it is now sitting in the garage. If i get it to start again I am going to check the fuel pressure with a gauge and see if that tells me anything. Link to comment Share on other sites More sharing options...
rustybottoms88 Posted April 22, 2015 Author Share Posted April 22, 2015 Ok long story short it was the TPS. Link to comment Share on other sites More sharing options...
cruiser54 Posted April 24, 2015 Share Posted April 24, 2015 I think it was Cruiser54 that recommended this one: http://www.amazon.com/Standard-Motor-Products-PC307-Crankshaft/dp/B000C7Y7YG/ref=sr_1_6?s=automotive&ie=UTF8&qid=1426120178&sr=1-6&keywords=pc307 You're saying this CPS by Standard is poor quality? Anybody else have any experience with this one? Yes. Made by the same folks as factory. Even advances the ignitoin timing a bit. Also, be sure the cPS harness is routed properly!!!!! Clips in 2 places to keep it off the hot exhaust. Link to comment Share on other sites More sharing options...
cruiser54 Posted April 24, 2015 Share Posted April 24, 2015 Got her home on the haul of shame Friday. It set in front of the garage until Saturday afternoon. I was fixxing to go pickup the wife from work and I thought well I will crank on it for kicks. It turned over a few times and then it fired for a min and died. I cranked on it alittle more then it started but was running pretty rough. I popped the hood and heard a hissing noise. I had unhooked a vacline while i was tinkering with it in the grocery store parking lot. I also noticed the map sensor vac line was in two pieces. I had used a small piece of vac line to splice it together when I broke it changing injectors. I put the vac line back on the intake and the splice back together for the map sensor and it picked up and idled like a new one. I put a vac gauge on it and the needle was reading rock steady at 18#. I backed it up and then pulled it into the garage where I shut it off. I went and picked up the wife from work in my Superduty. When we got back home I started and shutoff the MJ several times. Fast forward to Monday morning. I start it up and let it warm up before I take off to work. It idles but then will bog down alittle and then pick back up. I take off down the drive way and make it our first pond, thats about a 1/4 mile from the house. It dies without warning, won't start back and I am walking back to the house. I get home yesterday afternoon put a new tighter fitting vac line over the broken map sensor line just to be safe and it won't start. I tow it back to the house where it is now sitting in the garage. If i get it to start again I am going to check the fuel pressure with a gauge and see if that tells me anything. Some guys have just re-used the rubber fittings at each end of the MAP to TB hose on a piece of metal brake line bent to fit....... Link to comment Share on other sites More sharing options...
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