PLEASE HELP WITH NO IDLE PROBLEM

  • Tiny
  • skaterdemon69
  • 2000 Dodge Durango
  • 13,100 miles

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

Wednesday, August 1st, 2012 AT 3:26 PM

7 Answers

  • Tiny
  • KHLow2008
  • Expert
  • 41,938 posts

Have the compression tested. The spun camshaft sprocket could have affected the valves.

Are you very sure the timing chains and are synchronised correctly?

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Wednesday, August 1st, 2012 AT 4:11 PM
  • Tiny
  • skaterdemon69
  • Member

Ya they are perfectly timed and I did a compression test all checked. Out great

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Wednesday, August 1st, 2012 AT 5:23 PM
  • Tiny
  • KHLow2008
  • Expert
  • 41,938 posts

Seems the misfiring is the one causing the problem. What trouble codes were you getting?

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Wednesday, August 1st, 2012 AT 6:04 PM
  • Tiny
  • skaterdemon69
  • Member

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

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Wednesday, August 1st, 2012 AT 7:28 PM
  • Tiny
  • KHLow2008
  • Expert
  • 41,938 posts

So there are no trouble codes presently but it still cannot hold idle correctly?

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Thursday, August 2nd, 2012 AT 6:05 PM
  • Tiny
  • skaterdemon69
  • Member

Ya that's correct that is why I am so stumped. On what to do. Do you think it could be q bad pcm?

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Thursday, August 2nd, 2012 AT 6:37 PM
  • Tiny
  • KHLow2008
  • Expert
  • 41,938 posts

It could be. I would suggest plugging in a scan tool and monitoring the datastream to see if anything is not working correctly.

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Thursday, August 2nd, 2012 AT 8:11 PM

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