2002 Lincoln LS v6 3.0L - Need Help.

Chinden

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So this winter my car has been acting up.. especially on cold days it bogs and wants to stall. Very few times it has stalled but will start aslong as you give it gas.. I know i need a new cad, but I have just changed all Sparks, Coils, pcv valve & elbow and the egr valve.. it still tends to chug every once and awhile just not as bad as before. Hasn't thrown any codes back up at me.. Does anyone have any idea what could be causing this, Also im hearing a cringing metal (When metals heated or the sound when you strike a spark) coming from the driver side wheelwell.. Sounds very similar to salt/rocks hitting my wheelwell but theres nothing on the road right now.. lol. Please help im stumped ~!
 
I'd have changed the IAC before the EGR. That and the MAF should be the next big things to try. You can disconnect the MAF and see if the stalling goes away. If it does, then clean or replace the MAF. If not, look to the IAC.
 
I'd have changed the IAC before the EGR. That and the MAF should be the next big things to try. You can disconnect the MAF and see if the stalling goes away. If it does, then clean or replace the MAF. If not, look to the IAC.

Okay thanks very much. I believe it may be my IAC now after doing some research going to replace it tommorrow.. I will let you know how it goes.
 
Well i've completed that all. Still having the issue, anyone know what else could be the cause ? Other then a vacuum leak already checked for that aswell.
 
I've replaced everything still throwing codes.. :( p0174 and misfire on 123.. im stumped.
 
What brand coils? Did you replace the coils and plugs together? What plugs? Have you replaced the pre-cat O2 sensors (the P0174 code)?
 
What brand coils? Did you replace the coils and plugs together? What plugs? Have you replaced the pre-cat O2 sensors (the P0174 code)?

Havent done o2 or cat yet. It was NGK plugs ( old ones were almost mint ) and motorcraft coils.. did them together.
 
You'd want to make sure the plugs were gapped correctly and the connectors on the coils are fully clicked/snapped in and seated firmly.

Wouldn't hurt to change the fuel filter in behind the front drivers wheel well out, might be clogged up too much.
Refresh the intake air filter as well. Ensure the MAF sensor is carefully cleaned/working as intended as already suggested.
Code P0174 indicated the system is running too lean on bank 2. Don't be too quick to think it needs a new CAT or O2 sensors already,
it's simply telling you the mixture if too lean on that side and it's attempting to adjust for such,
deal with the problem up front, reset OBDII and see what she tells you after that.

Honestly, people seem to think fuel filters last forever, I was shocked when I changed mine out and held it upside down, fuel poured-
out backwards and it was brown like mud. Myself I now make it a habit of changing out the 15dollar fuel filter at least once a year.


sample: Ford P0171 & P0174 Lean Codes
http://www.aa1car.com/library/ford_lean_codes.htm
 
Did you anti seize the plugs? Sometimes when people use to much it can lead to misfires.
 
I may be late for a reply but I have had issue with cold stalling and poor acceleration leaving the curb on morning starts. I was on my fifth repair shop to correct this and ended up at the Lincoln dealership with $115 an hour shop rate. After two hours of inspection with no lead it was suggested to me to hook up the pig to an intake cleaner machine that would remove carbon and other contaminates from the fuel/air components by recirculating an aromatic thinner thru the system. It sounded desperate but proved to reveal the root cause of the cold stall problem.
Not long after pushing the cleaner thru the intake manifold did the tech find the fluid oozing out of the (plastic) intake manifold where it mated to the cyl head. A humongous leak was revealed where unmetered air was entering the intake charge creating a super lean condition and causing the misfire. It was the 2nd Michigan winter with this crippling problem and now it had been diagnosed. I approved repair and when I got the bill I was only charged for the ($335) cleaner process and not the $850 intake manifold gasket replacement. What a relief. Hope this helps.
 
... find the fluid oozing out of the (plastic) intake manifold where it mated to the cyl head. ....

I can't speak to the gen I, but the gen II intake manifold is metal where it meets the cylinder heads.
 

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