1998 Lincoln Town car with a bad miss and no codes thrown? - Hot Rod Forum : Hotrodders Bulletin Board
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Old 04-06-2010, 02:02 PM
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1998 Lincoln Town car with a bad miss and no codes thrown?

I know this does not sound very "Hot-Rod" but it is still important so please bear with me.

I have a friend who I trade work with.
He is a early Vietnam vet, but still a good welder and body man.

Right now he is working on an exhaust for my 1950 Studebaker.

He asked me to figure out what is going on with his 1998 Lincoln Town Car.

There is nothing special about his car.

It is the usual run of the mill black on black town car.

I have pulled and checked all of the fuses, checked the coil packs, and have drained the battery to try to reset the ECU.

I have no clue what is causing the miss.

Anyone here have any ideas?

Do you know of any other sites that are helpful?

I searched but most of the Lincoln forums are dedicated to classic Lincolns or LSC's.

Thank you for your patience.

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Old 04-06-2010, 02:08 PM
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Bad plug(s)...plug wires......
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Old 04-07-2010, 01:14 AM
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That is simple enough to be possible and something I have not checked yet.

The car sat through the winter without being run.

I do not think I have ever had a similar issue with any of my vehicles.

I will try to see if that is it tomorrow.
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Old 04-07-2010, 07:35 PM
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Could it be a sticky fuel injector from sitting too long? Fresh gas or a jug of Berryman's Injector Cleaner might help if it is.
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Old 04-08-2010, 09:11 AM
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There are a lot of potential failures that will cause a misfire but not set a code. Problems with plugs, wires, or coil are most common. Sticky or leaking fuel injectors, plugged fuel filter, bad fuel pressure regulator, vacuum leak. The list goes on. I would suggest running injector cleaner through the fuel system. Use the style that screws to the test port on the fuel rail, not the cheapo stuff you throw in the tank. Also, if you have access to a test tool, run an injector leakdown test. Plugs, wires, and coil(s) are probably easier to replace than to test. Finally, this is an OBD II car. The OBD II computers use non-volatile memory. Simply disconnecting power will not clear the memory.
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Old 04-08-2010, 11:48 AM
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More very good suggestions.
I am determined to fix this thing so I will go to NAPA and get the good fuel injector cleaner that plugs into the fuel rail (unless someone else knows of another cheaper or better source for that stuff)

How do you reset the memory on an OBDII car?

To look at this thing from a Body platform and mechanical perspective it looks like a loaded Taurus of similar vintage to me. (with exception to the V8)

I like Lincoln, but these newer ones are uninspiring.
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Old 04-09-2010, 07:00 AM
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I worked at a ford dealership for a short time about 8 years ago.I think there was an egr port we would clean on these.I assume it,s a 4.6L.
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Old 04-09-2010, 11:23 PM
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Yes, it is the 4.6L V8.
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Old 04-10-2010, 02:53 AM
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First, one should find the dead hole. After finding cylinder thats not firing, Pull the spark plug and check it a little further. Would not be cost effective to put a big ole tune-up on an engine with no compression. Many times a tune- up will fix it up. But just as many times, its a complete waist of time and money.
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Old 04-11-2010, 02:52 PM
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Quote:
Originally Posted by Rexnfx
First, one should find the dead hole. After finding cylinder thats not firing, Pull the spark plug and check it a little further. Would not be cost effective to put a big ole tune-up on an engine with no compression. Many times a tune- up will fix it up. But just as many times, its a complete waist of time and money.
Compression is not the issue here.

I am on top of old school tech. and solutions.

This car is from the modern world.

I have a 1960's garage and education.

LOL
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