HELP! engine noise

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HELP! engine noise - 5/9/2008 4:57:07 PM    dixieduo   Posts: 3 Joined: 5/9/2008 Status: offline I need help! i have a 2001 Dodge Durango with a 4.7 V8. Once the engine is started there is a ticking noise.During accleration the ticking gets louder. When you reach 40mph it starts to vibrate very roughly until you reach 50mph. The check engine light came on at the begining of this process. When hooked up to a code reader it said "cylinder # 7 misfire". After reading the Haynes repair manual.I changed all spark plugs, then the #7 coil, and the fuel injector. Once all that was done the code read the same thing.The ticking noise is a metal on metal noise.Please help. Post #: 1

RE: HELP! engine noise - 5/9/2008 6:21:31 PM    01dakota440   Posts: 49 Joined: 4/17/2008 From: williamsport pa Status: offline have you been able to tell from under the hood, if it is comming from one of the heads. if so, it could maybe be in the valves, valve guides, springs, rocker arms.  and since you say it still gives a p0307 code. you should listen under the hood for the noise, listen twards the firewall on the drivers side.  let me know what you find out. < Message edited by 01dakota440 -- 5/9/2008 6:34:39 PM > (in reply to dixieduo) Post #: 2

RE: HELP! engine noise - 5/9/2008 9:32:43 PM    hydrashocker Posts: 1635 Joined: 6/12/2005 Status: offline Sounds like a classic main bearing or wrist bearing. Unfortunately I think you are looking into a re-build. _____________________________ 1998 Durango, 5.9L Built Motor Bored 20 Over P&P Heads, K&N Ram Air CAI MSD Ignition, 52MM Fastman TB, Built T-Case Custom Built Trans, Air Bags Magna Flow 3" Cat Back Exhaust Too Much To List! (in reply to 01dakota440) Post #: 3

RE: HELP! engine noise - 5/10/2008 12:52:42 PM    dixieduo   Posts: 3 Joined: 5/9/2008 Status: offline  The noise does come from the the drivers side. how hard is it to replace the valves and things you mentioned? is this an expensive fix? when we hooked it to three different code readers, they all said cylinder#7 misfire. I changed plugs,#7 coil, and fuel injector and still get same code P0307! This is my first durango so i am very lost in this matter. your help is greatly appreciated. Thanks (in reply to 01dakota440) Post #: 4

RE: HELP! engine noise - 5/10/2008 1:18:31 PM    hydrashocker Posts: 1635 Joined: 6/12/2005 Status: offline Either way they are very expensive. You might want to do a rebuild or take it to a shop for a better opinion. It's hard to say when we are not there. _____________________________ 1998 Durango, 5.9L Built Motor Bored 20 Over P&P Heads, K&N Ram Air CAI MSD Ignition, 52MM Fastman TB, Built T-Case Custom Built Trans, Air Bags Magna Flow 3" Cat Back Exhaust Too Much To List! (in reply to dixieduo) Post #: 5

RE: HELP! engine noise - 5/10/2008 5:05:25 PM    n8ech   Posts: 461 Joined: 11/21/2006 Status: offline DD: I think the next step is to pull that driver side valve cover. I have a feeling you will see evidence of mechanical damage once you are in there. If you find nothing there, I would run a compression test on the 4 cylinders on that bank, and see what kind of numbers you get. You might get lucky and not have to pull the head, but most of the time in cases like this the head had to come off and be repaired or replaced. I do not believe that a bearing is your problem as the engine would not necessarily miss due to a bad bearing, but just make noise. I would not run the motor any more than you have to until you get a grip on this issue.                                                                       Don _____________________________ 2001 Dark Garnet Pearl Durango SLT+ 4.7L AWD w/ 3.55 gears (mine) 2005 Linen Gold Pearl DGC 3.8L (hers) (in reply to hydrashocker) Post #: 6

RE: HELP! engine noise - 5/11/2008 8:38:39 AM    dixieduo   Posts: 3 Joined: 5/9/2008 Status: offline  Thank you for the advice. I am going to look in on the areas you informed me of. Once again thank you very much. (in reply to n8ech) Post #: 7

RE: HELP! engine noise - 5/11/2008 11:05:37 AM    hydrashocker Posts: 1635 Joined: 6/12/2005 Status: offline n8ech, Great job! I didn't even think of that. My brains been on work and any other place is a blur right now. _____________________________ 1998 Durango, 5.9L Built Motor Bored 20 Over P&P Heads, K&N Ram Air CAI MSD Ignition, 52MM Fastman TB, Built T-Case Custom Built Trans, Air Bags Magna Flow 3" Cat Back Exhaust Too Much To List! (in reply to dixieduo) Post #: 8

RE: HELP! engine noise - 5/11/2008 7:55:49 PM    440shadow   Posts: 12 Joined: 5/11/2008 Status: offline hi i'm new to this site. i agree with 01dakota440 and n8.   sounds like it could end up being an easy fix.         hey dakota440. i have a shadow with a 440 in it.  i tried to pm you but it won't go through.  but anyway i need some held with my 2001 durango r/t. i think you could help me out alot. i've seen some of your trucks at beavespings drag way. i don't live to far from williamsport pa. i could have it brought up to your shop if that woulb be ok. just let me know.  thanks in advance    sam t < Message edited by 440shadow -- 5/11/2008 9:29:16 PM > (in reply to hydrashocker) Post #: 9

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