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Lincoln LS random misfire

82 messages,  Last post on Oct 01, 2009 at 10:29 AM

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#13 of 82 Re: I AM SO SICK OF THIS CAR [jazelade] by akirby Nov 14, 2006 (6:32 pm)
Replying to: jazelade (Nov 14, 2006 3:28 pm) I didn't mean to come across that way, I just hate to see people complain about a problem that should have been easily fixed the first time around. Oil doesn't just leak out of an engine for no reason and whoever fixed it should have realized that. Live and learn. Blame the car for having bad valve cover gaskets that ruined the coils but not for the repeat repairs. Replies to this message: jazelade (Nov 15, 2006 4:57 am)
#14 of 82 Re: I AM SO SICK OF THIS CAR [akirby] by jazelade Nov 15, 2006 (4:57 am)
Replying to: akirby (Nov 14, 2006 6:32 pm) Yeah, I hear you. Thanks.
#15 of 82 Re: Lincoln LS random misfire [ynkntx] by craigmase Nov 15, 2006 (2:22 pm)
Replying to: ynkntx (Nov 05, 2006 12:50 pm) There are speculations all over the internet on what this problem is and I have done almost all of them and I finally have found out EXACTLY what the problem is. A few things: it is NOT the coil packs from oil leaking from the gaskets. It is NOT the O2 sensors. It is most certainly NOT the fuel pump, so do not replace that.   The problem is the PCV lines become old and damaged causing a vacuum leak and that is why the car idles rough and dies. It should cost a total of $500 dollars at a lincoln dealer and here are the part numbers and descriptions:   3w4z-6767-ca connector f8cz-9e499-ba connector xw4z-9h486-ac gasket xw4z-9439-ad gasket Replies to this message: akirby (Nov 15, 2006 4:39 pm) jetstang (Dec 12, 2006 5:02 am) jetstang (Dec 12, 2006 5:07 am)
#16 of 82 Re: Lincoln LS random misfire [craigmase] by akirby Nov 15, 2006 (4:39 pm)
Replying to: craigmase (Nov 15, 2006 2:22 pm) Not if your spark plug wells are full of oil. That's a leaky valve cover gasket for sure.   Rough idle without the oil leak or bad coils could be a vacuum leak. Replies to this message: jetstang (Dec 12, 2006 5:02 am)
#18 of 82 Re: Lincoln LS random misfire [akirby] by jetstang Dec 12, 2006 (5:02 am)
Replying to: akirby (Nov 15, 2006 4:39 pm) I have owned my 01 LS V8 for 6 months, 60K miles. I had to replace the heater control valve, $250 from dealer. I am having the same problem with misfires. I work on it myself, and have fixed the problem. It is from a valve cover leak, which oil contamination destroys the COPS-Coil Over Plugs. The valve cover kit has an improved design not to allow the oil into the plug wells. It is hard and long to get the valve covers off, 7 hours the second time. Then, get a scan tool, or scan at autozone, it will tell you which cylinder is misfiring, change the COP and plug. I found the COP on Ebay for $18 each, good deal. They also have a COP stress test at the dealer, good investment or JUST REPLACE ALL THE COPS AND BE DONE WITH IT FOR 60K, maybe longer if oil leak is actually fixed. I had my car running great, now with no leak, good COP and new Plug cylinder 3 has misfire, WTF??? I think a stick of dynamite would fix this car and I would love to slap the POS that came up with this stupid engine!!! Lincoln should be ashamed of this car and should be taking steps to fix it, which they are not.
#19 of 82 Re: Lincoln LS random misfire [craigmase] by jetstang Dec 12, 2006 (5:07 am)
Replying to: craigmase (Nov 15, 2006 2:22 pm) This could be the problem, how did you come to that? My car gives codes for misfire, COPS and Plugs fix it, then car runs great. No idle problems. I will look into the PCV, but for now I think my harness has a problem, have you heard anything about that?
#20 of 82 Linclon Ls 2000 misfire and climate control problem by mookie3 Mar 08, 2007 (9:41 am)
I have a Linclon Ls 2000 V8 and my 3rd cylinder is misffiring. I wanted to know if would be hard to change it myself and what parts I would need to do so. Also my climate control keeps blowing on high even if I try to turn it down. I wanted to know if It would be hard to fix this problem as well; if not how much it would cost on average to fix these problems. Thanks.
#21 of 82 Random Misfires/Shifting Confusion? by stets2 Mar 20, 2007 (5:35 pm)
2000 Lincoln LS, fully loaded V8, 97K miles, in the 2 1/2 yrs I've owned the car the so called "random misfires" keep popping up. I'm not even sure if you call these problems random misfires. I would call them more of the car confusing itself as to what gear it's in. When the car is in reverse and it's backing up, without accelerating, it will skid to a stop like it's confused as to what gear it's in and then it releases itself and it's fine. Also, sometimes when I'm accelerating between 40-45 mph the car will grab itself like something is pulling it back and then again release itself and be fine. I've taken it in to the dealer several times and they've tried to replace things they think it could be but nothing has cured it. I just had the 7th cylinder replaced because it showed up as a misfire on the computer at the dealers. The 7th cylinder being bad was the only time the engine light came on. All the plugs and boots were just replaced and the problem is worse than ever. The dealer continues to tell me that "unless they can duplicate the problem then there's nothing they can do." I know nothing about engines and it seems that neither do these car dealer mechanics. They charge me $100 just to hook the car up to the computer and unless the problems happens while it's hooked up they don't know what it is. I've read all the responses and the PCV lines maybe what I try next. Can anyone help? Replies to this message: akirby (Mar 20, 2007 7:59 pm) stets2 (Mar 21, 2007 6:19 pm)
#22 of 82 Re: Random Misfires/Shifting Confusion? [stets2] by akirby Mar 20, 2007 (7:59 pm)
Replying to: stets2 (Mar 20, 2007 5:35 pm) The misfire is probably the COPs (Coil on Plug). Is that what they replaced or just the spark plugs and boots? Not sure about the tranny problem - have you had the fluid replaced? Replies to this message: stets2 (Mar 21, 2007 6:19 pm)

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