2000 Dodge Durango Idle

2000 DODGE DURANGO
13,100 MILES
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SKATERDEMON69
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I have a 2000 dodge durango 4.7 that I cannot find out how to fix. Let's start with some back ground on the truck. I just got it a week ago. I bought it after anothee guy replaced a cracked head.on the passenger side. The truck after being assembled then spun the cam dowel after being started the first time and ran for a little while. He said he overtightened the cam. He then took the cam off the old head and put it onto the new/used head and fixed it but since he had no idea where the timing was at when assembled. I took the valve cover off both sides and reset the time back to zero on everything. I got the truck started and it ran rough and wouldn't idle. I can getitto revup and oncepast 2000 rpms it runs great. After the first start up it threw a code for ignition coil 1 and 6 being out I replaced those two and then it threw a code fo 3 and 5 ignition coils being out not wanting.to throw more money at it I did a lot of research and came to the conclusion that it could be the idle air control so I replaced that. Now it is throwing codes for coils 2-8 being out. I am so lost now on what it could be that is making this truck.run so bad. I cannot get.it to idle I can get it to.run ok after 2000 rpms. Please help.

As of today I replaced the throttle position sensor and it still won't.idle
Aug 1, 2012 at 3:26 PM
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KHLOW2008
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Have the compression tested. The spun camshaft sprocket could have affected the valves.

Are you very sure the timing chains and are synchronised correctly?
Aug 1, 2012 at 4:11 PM
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SKATERDEMON69
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Ya they are perfectly timed and I did a compression test all checked.out great
Aug 1, 2012 at 5:23 PM
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KHLOW2008
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Seems the misfiring is the one causing the problem. what trouble codes were you getting?
Aug 1, 2012 at 6:04 PM
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SKATERDEMON69
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I got codes 2-8 ignition coils being out but then that went.away when I did a throttle position sensor now it is only cylinder five but I replaced that one and it went away
Aug 1, 2012 at 7:28 PM
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KHLOW2008
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So there are no trouble codes presently but it still cannot hold idle correctly?
Aug 2, 2012 at 6:05 PM
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SKATERDEMON69
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Ya that's correct that is why I am so stumped.on what to do. Do you think it could be q bad pcm?
Aug 2, 2012 at 6:37 PM
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KHLOW2008
  • ASE Certified Mechanic
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It could be. I would suggest plugging in a scan tool and monitoring the datastream to see if anything is not working correctly.
Aug 2, 2012 at 8:11 PM
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