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04 V6 LS vibrates at idle, knocks under load and smells funny :)

13 messages,  Last post on Jan 09, 2010 at 9:24 PM

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What is this discussion about? Lincoln LS, Engine, Sedan

Messages Page 2 of 2

#4 of 13 RE: Oil in the wells [branflake12] by akirby

Jan 06, 2010 (11:46 am)

Replying to: branflake12 (Jan 06, 2010 9:58 am)
I thought they had fixed the VC gaskets by the 2004 models but wasn't sure. That doesn't mean the COPs aren't going bad though.

#5 of 13 COP's by branflake12

Jan 06, 2010 (1:26 pm)

Ill have to re-check them and take a hard look at the boot, maybe spark is getting thru there. Any chance its just a bad plug(s)? The COP's all looked fine to my untrained eye, but that doesnt mean much.

#6 of 13 Re: COP's [branflake12] by akirby

Jan 06, 2010 (1:35 pm)

Replying to: branflake12 (Jan 06, 2010 1:26 pm)
They fail internally. They don't look bad and they may even test OK. You really have to test them individually under load. Plugs are a possibility and easy enough to change.

#7 of 13 RE: COPs by branflake12

Jan 07, 2010 (10:53 am)

Would a bad coil(s) explain both the vibration AND the missing/chatter under load? I was considering a PCV valve at fault for the vibration. The burning smell however...I can't theorize on. Thanks!

#8 of 13 RE: COPs [branflake12] by akirby

Jan 07, 2010 (4:55 pm)

Replying to: branflake12 (Jan 07, 2010 10:53 am)
It will cause a misfire so yes. Wouldn't hurt to change the PCV valve though - if you have one - one of the engines doesn't use one but I'm not sure which one. Check the OM. I think the V8 doesn't use one.

#9 of 13 RE: COPs [akirby] by toomanyfumes

Jan 08, 2010 (4:34 pm)

Replying to: akirby (Jan 07, 2010 4:55 pm)
Yeah the V6 has the PCV. I bet it's not the plugs, probably COPS.

#10 of 13 RE: COPs [toomanyfumes] by blust

Jan 09, 2010 (12:59 pm)

Replying to: toomanyfumes (Jan 08, 2010 4:34 pm)
I had a misfire #6 spark plug, I replaced it.then # 5 had a misfire. I replaced all 6 cop's and spark plugs. still runs bad. the mechanic said it was the # 3 so he swithched the cop's and plugs around and it worked for a day...took it back and he said it was the cat. convertors. I replaced both passenger and drivers side and the FOUR 02 sensors upper and lower...he also replaced the fuel filter...now it shows a #2 misfire and he said he doesn't want to work on it any more and has done all he can do...any ideas?

#11 of 13 RE: COPs [blust] by akirby

Jan 09, 2010 (2:37 pm)

Replying to: blust (Jan 09, 2010 12:59 pm)
I'd say it almost has to be fuel delivery. Could be a bad fuel pump - the LS has 2.

#12 of 13 RE: COPs [blust] by branflake12

Jan 09, 2010 (4:17 pm)

Replying to: blust (Jan 09, 2010 12:59 pm)
What was going on with yours that you took it in?

#13 of 13 RE: COPs [branflake12] by blust

Jan 09, 2010 (9:24 pm)

Replying to: branflake12 (Jan 09, 2010 4:17 pm)
the codes kept showing a misfire # 6 cop or spark plug. The #6 plug has been changed atleast three times. That's why I bought Six new cop's and spark plugs. Took it to a reputable shop and he charged me $245 to put them in...Drove great for one day then the cel came on and it was a #5 misfire. I pulled out the plug and unhooked the battery. hooked them back up and it was fine. the next day, I stopped to get gas and when I started driving the cel came on and went into limp mode. I took it back to the shop. The mechanic looked at it and said the #4 spark plug was misfiring so he switched around the cop's and plugs, said it fixed it and runs great.
 
I left the shop again and on the way home it drove real rough, so I took it back. He said this time Might be the fuel filter and the catalytic converters. He changed the fuel filter, the passenger and driver side catalytic converters plus both upper and lower 02 sensors (FOUR total)...he called me and said the car is fixed and runs fine, but the cel is on and shows a #2 misfire. He said he's done all he can with my car, so good luck...I supplied all the parts, he just did all the labor...since they were my parts he didn't waranty anything. I spent $1400 total...With his parts and labor it would have cost me $2700...That's why I supplied the parts and risked the no waranty...any ideas???

Messages Page 2 of 2

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