Lincoln LS 3.9 engine problem
I have a 2000 3.9 V8. One evening I backed my car up about 10 ft. turned it off and about 15 minutes later started it and pulled it forward to where it had been. The next morning I could not start the engine. My local LM looked at it and informed me that the engine was turning over but not firing. The timing was correct but a compression test showed very low compression - below the compression needed to fire. They put oil in each cylinder and started the car. They informed me that I needed to replace the engine (about $7,000 installed) and that they have had several Lincoln LS's with this engine with the same problem at about the same mileage as mine. It is supposed to be a Jaguar engine according to them. The mechanic thinks the rings are sticking due to varnish and that nothing can be done to repair the engine. I have always used premium fuel and synthetic oil. I trust this dealer and have been their customer for several years. Has anyone else experienced this problem and is there anything that can be done about it short or an overhaul or engine replacement? How about additives? The car now starts fine and as far as I can tell uses no oil and accelerates like a scalded dog.
Hate to say it but I think you need a new mechanic.
I think this was a fluke and your shop is wrong. If the compression is so low as to not start, you would be using oil, smoking, etc. I would drive it and watch the oil and coolant levels for awhile just to make sure nothing is awry.
Sounds like a false alarm to me.
I know this is a lot to cover at one time, any help will certainly be appreciated. I am new to the forum so this is my first post. I've read lots of post and gained lots of useful information related to this car. Thanks for your help. LR
Bad coils don't always have the same symptoms. The first time I had one go bad, the car idled perfect and was fine under hard acceleration but had a miss under light load - 40-50 in 5th gear and accelerating gently. With the 2nd one that failed, the car ran fine under load but had a misfire at idle. Both of these occurrances happened within a month of each other and ironically both were on the passenger side.
About 6 months later, it developed a misfire under hard acceleration. This time, I decided to replace the remaining 6 coils myself. The store where I bought the coils only had 2 in stock so I just replaced the 2 remaining on the passenger side. That fixed it and it has run perfectly for the last year. I still haven't replaced any on the drivers side but I will replace all 4 on that side if I ever have another problem. The dealer indicated that they typically fail one at a time.
Stupid question maybe, but I'll ask anyway - are the Coil-On-Plugs (COPs) replaceable without replacing the spark plug? Or is it a FRU that is sold and replaced as a unit? How much is a COP?
Yeah, I just saw where gregg replaced his plugs with platinums. It's good I can doa tuneup for only the cost of the plugs. And I'm sure the aggravation of actually getting to one or more of them.
My '94 T'bird with the 4.6 had spark plug wire failures. It was not COP but the wires went deep into the head to reach the plugs and had a seal on top of the well. I always thought heat was a problem for that application, too.
The owners manual makes it look easy, but thats not the case.
Any help would be appreciated.
There are simply too many things that have to work together with the PCM to do an engine swap. Not like the old days when everything was mechanical and stand-alone.
first time we called AAA and they got it started.
after that, i would just keep cranking it, within reason, i think with the gas pedal depressed. there may be something about a no start situation in the owner's manual.
when it fired, it would blow out some smoke, but was ok after that.
Of course, my experience was before the days of fuel injection. I don't know if could happen with today's cars or not but I think the point I was making 2 years ago was that it might be possible.