Ghost problem now starting prob
#1
Ghost problem now starting prob
I have a 99 Cummins 3500 4x4 and I have been chasing a ghost. Codes left an right TPS, AIT, MAP AND PCM. well figured that out it was the batteries post. While that was going on you could hop in and it would bust over like normal now you have to wait on the chime for the seatbelt or dash.. any ideas
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[QUOTE=Jerrit;3347874]I have a 99 Cummins 3500 4x4 and I have been chasing a ghost. Codes left an right TPS, AIT, MAP AND PCM. well figured that out it was the batteries post. While that was going on you could hop in and it would bust over like normal now you have to wait on the chime for the seatbelt or dash.. any idea
I cleaned the post and ends to get better connection
I cleaned the post and ends to get better connection
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It's like the pcm hasn't told lift pump to turn on.. I have a fass pump when you hear the chime the pump cycles and it bust over. But till then it will crank till batteries are dead. I'm thanking loose wire some where but no clue. I'm going to try and disconnect both batteries and reset ect and pcm tonight and see what that does.. just looking for a little insight
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Yes has the relay that plugs in to the factory lift pump wiring to turn on relay. If you turn on key to roll up/down windows then turn off key the pump will run for about 15-30 sec then turn off. But if you turn key to run and leave on, in about 15-20 sec pump will cycle and it will start as soon as you pump the key ... PDC?
Last edited by Jerrit; 06-27-2017 at 12:11 PM. Reason: What is PDC
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