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Dodge Ram Starting Problems

34 messages, Last post on Nov 30, 2009 at 9:58 AM
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| I have a 99 dodge ram club cab v8 when the weather is wet or rainy and truck sits over night it will not start only does it on cooler wet nights. | |
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Power to the coil but no spark? Swapped crank sensor no spark? Any Ideas? Gonna Check ASD today... Be back to report later! |
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Well Rechecked Fuel Pressure (Its ok 44psi), then rechecked ASD relay (switching it) then rechecked the Crankshaft and Camshaft sensors while hand cranking the motor super super slow (making sure to have the coil wire unplugged from the cap) while the key is in the run position. Both checked ok. Went back to the coil plug and checked for constant 12v and then checked other wire for a signal while cranking motor that seemed fine. I was so certain to find something... I traced wires from the coil to the PCM and checked for continuity both fine. (GRN/ORG wire left harness plug on PCM & GRY/WHT wire far right harness plug on PCM.) While doing so I then noticed the PCM Computer ECU whatever... was a junkyard replacement! (Yellow paint marker numbers and a big lakeview junkyard sticker with a check mark on it lol Also pry marks all around it from someone opening it it seems lol).. I was shocked lol ..I never would have thought this was already changed lol.. Im NOW thinking the PCM is just bad. Any thoughts out there....
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Found out today from the customer when telling him the PCM might be bad I told him "its the computer above the enging under the hood missing the cover" he then told me the van over heated and blew out the radiator hose near the thermostat lol... He said he cut the hose down and changed thermostat and he might have the PCM cover lol... Hmmm Ok soooo the junkyard computer along with not being factory sealed was drenched in hot radiator fluid then drivin the very same day and for 2 weeks more before this (dead at a stop light without warning).... Hmmmm I bet the junkard PCM was fine without the cover lol until the hose bursted and blasted the PCM witch is right above the hose lol THANKS DUMB DODGE FOR PUTING A COMPUTER THERE! I GUESS BEHIND THE DASH or NEAR THE DRIVER FLOOR IS TO MUCH TO ASK! I will get another PCM I guess unless someone has a idea for me to try I love experimenting! |
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Replying to: hooker321 (Oct 17, 2009 10:13 pm) |
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| I have a 2003 Ram Truck 5.7L Hemi. Engine check light was on for several days. Then it would not start. Replaced CAM sensor and the truck started right up and check light was off. Same day the engine would not crank, tried it twice then started up. Thinking I had a weak original battery, I replaced the battery. Car stated right up with no warning lights. Next day the truck will not crank. Battery okay. Check for error codes and found none. Any recommendations? Thanks | |
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Replying to: toby74 (Jul 10, 2009 11:24 pm) |
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