- #665 of 915
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engine jerks
by mrtowncar
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Sep 05, 2007 (3:27 pm)
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i have a 2001 linconln town car and it has just started doing what i hate the most out of car, when im crusing and i want to increase speed by just 1 or 2 miles it starts jerking as i just show the foot to the gas pedal, it only does it when i very very lighly step on the gas to increase speed by 1 or 2 miles, i have tried changing the gas from BP 93 to Marathon 93 and still the same , i added lucas fuel injector cleaner and still the same, does anyone have an idea what it could be? Im not sure if its a fuel injector problem, or a spark plug problem or a coil, i dont know, first time i own a lincoln and im already disappointed, the car only has 38000 miles very clean, but this is really getting to me
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- #666 of 915
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Re: towncar heater [towncar2]
by mrtowncar
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Sep 05, 2007 (3:30 pm)
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Replying to: towncar2 (Mar 15, 2005 5:49 am)
i have the same problem and i come to find out the is the plug on the fan blower, im still having problems with it, i have to open my hood every morning and play with the plug until i hear the heat blower go
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- #667 of 915
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Re: towncar heater [mrtowncar]
by mrtowncar
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Sep 05, 2007 (3:31 pm)
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Replying to: mrtowncar (Sep 05, 2007 3:30 pm)
somehow the plug looses contact with the blower end of the plug and wont run
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- #668 of 915
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Re: engine jerks [mrtowncar]
by nwraaa
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Sep 05, 2007 (5:24 pm)
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Replying to: mrtowncar (Sep 05, 2007 3:27 pm)
The engine is probably misfiring underload because all of the spark plugs and coils are not firing as they should. It is not uncommon for the Ford 4.6 engine to start misfiring at 30000+ miles. Does your engine service light come on? In most instances, all of the plugs and coils do not need changing at one time, just the one or two that are misfiring. If your engine service light is not coming on, change the plugs and coils in this order: 1, 4, 5, and 8. For some reason, the plugs near the very ends of the block are the first to start misfireing. Replace these, one at a time. That is, replace the coil and plug in cylinder 1, then drive the car. This may be the only one that needs to be replaced. I hope that your opinion of the car will change for the better. You should be getting about 30 mpg. With basic maintenance, the car should give you about 140,000 miles and 7 years of trouble free driving.
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- #669 of 915
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Re: engine jerks [nwraaa]
by izaclown1
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Sep 06, 2007 (5:11 am)
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Replying to: nwraaa (Sep 05, 2007 5:24 pm)
I have had a 2000 and have a 2002 and have never gotten anywhere near 30 mpg. Best on the 2000 was around 24 and my 2002 w/dual exhaust has been a little over 26. I have done the other things like keep good tires properly inflated and slow starts,easy accelerations, and use cruise on the interstates. I seem to get good mileage around 55-60 and 85+. The time I got over 26, I was driving on interstate running 85 mph. I do not use the higher octane due to the recommendation from the LM dealer. I was told it is a waste of money.
Both engines started to periodically not crank or idle around 65K. The engine will run but will not idle. Drive it for a couple of minutes. It will crank and idle fine from then on.
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- #670 of 915
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Re: engine jerks [izaclown1]
by adjuster
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Sep 06, 2007 (5:56 am)
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Replying to: izaclown1 (Sep 06, 2007 5:11 am)
I have a 2000 Towncar. I get 30 mph on the freeway if I stay at 55. At 65-70 I get 25-27 mph. I get 19.4 mph average with about 70% intown driving, 30% freeway driving. My car has about 83,000 miles and runs great on regular gas now that I've found and repaired the coil problems. 
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- #671 of 915
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Re: engine jerks [nwraaa]
by mrtowncar
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Sep 06, 2007 (5:13 pm)
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Replying to: nwraaa (Sep 05, 2007 5:24 pm)
i wanna thank you much for your help, i love the looks of this car and will like to keep it but i wont if i dont find the solution to this problem, i have removed all spark plugs to inspect and they all look good, i noticed the car started doing that after i rammed the engine up preety good trying to impress a coworker that was behind me in a mustang i took it up to like 80 to 90 mph in short distance, it usually does it around 40 mph and like i said only when i hit the gas very very lightly it jerks preety bad it does feel like a misfire and no i have no check engine light, is there a way to check the coils for misfire, i was told that if it was the coils i would have a check engine light but i dont have one, do u think is more of a coil spark plug problem than a fuel injector problem? i checked the auto part i can get one coil for like $58 bucks and e-bay has a set of all 8 for $100 after market new ones, what do u think. i also want to mention that i also have a 1997 lincoln continental now out of service due to a bad transmission with the same excact problem, on that one i changed the spark plugs and all wires and i stiil had the same problem all the way until the tranny went out, but now im concern about the town car i just thought i meantion that, it seems like the problems i hate the most of car have follwed me with this town car taht i have only owed for 11 months
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- #672 of 915
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Re: engine jerks [mrtowncar]
by izaclown1
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Sep 07, 2007 (4:14 am)
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Replying to: mrtowncar (Sep 06, 2007 5:13 pm)
Is it possible that the transmission is "searching" for overdrive. My 2000 was bad about that when I was on a slight incline and was just trying to maintain speed. It would shift in and out of OD several times until I released the gas or put more umph behind it. I have seen that as a "problem" on earlier posts.
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- #673 of 915
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Re: engine jerks [izaclown1]
by mrtowncar
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Sep 07, 2007 (3:48 pm)
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Replying to: izaclown1 (Sep 07, 2007 4:14 am)
i thank u for ur info , im not to sure about the transmission because i dont think im giving it enough gas to ask for overdrive, now its almost an intermitten problem its only doing it sometimes, it was alot worst before i changed the gas from bp 93 to marathon and before i put the lucas fuel injector, it seems to have gotten better but i still feel it sometimes, i hate it
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- #674 of 915
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vacuum leak near dash
by mjt
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Sep 08, 2007 (8:50 am)
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I have a 1988 TC when it is in park you can hear a vacuum leak near the dash. If I move the gear shift a little bit the leak stops. I dont have to take it out of park just move it. I know this happen to a 1985 grand marquis and I think the problem was under the steering column and some type of switch
any ides
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