2003 Lincoln Aviator Logo
Posted on Sep 24, 2010
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Have 2005 lincoln aviator - has miss at 30-55 MPH - no codes replaced all coils ( ford) & spark plugs (twice) - repair vacuum leak at PCV Still misses -- no codes -- help

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gerry bissi

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  • Lincoln Master 4,390 Answers
  • Posted on Sep 24, 2010
gerry bissi
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The COPS (coils) may have shorted the drivers in the PCM (computer). You should get a misfire code for each cylinder misfiring though.

Slim possibility, but very expensive unless you have a service contract.
LINCOLN: 1999-2004 Navigator
2002-2003 Blackwood
2003-2005 Aviator MERCURY: 2003-2004 Marauder
ISSUE: Some 1999-2004 Navigator, 2002-2003 Blackwood, 2003-2005 Aviator, 2003-2004 Marauder and 2003-2004 Mustang vehicles built before 12/19/2004 equipped with 4.6L 4V/5.4 4V engine may exhibit a runs rough, lacks power, and engine misfire, prompted by a MIL light and DTC codes P0301, P0302, P0303, P0304, P0305, P0306, P0307, P0308, and P0316.
ACTION: Diagnose engine for engine misfire concern. If diagnostics determine an engine misfire which is characterized by leakage through exhaust valve(s), only replace the affected cylinder head(s).
SERVICE PROCEDURE FOR VEHICLES WITH RUNS ROUGH/MISFIRE CONDITION:

  1. Perform relative compression check on all cylinders. If abnormal, check cylinder leakage and actual compression for "low" cylinders refer to Workshop Manual (WSM), Section 303-00.
  2. If leakage/compression check indicates a valve train concern, per valve train diagnostics in WSM, Section 303-00, replace cylinder head and cam assembly, pipe plugs and timing chain tensioner, per procedure outlined in WSM, Section 303-01.
  3. If cylinder leakage and compression tests are inconclusive, perform misfire diagnostic, per TSB 05-22-8. NOTE: DO NOT TRANSFER SPARK PLUGS. INSTALL NEW SPARK PLUGS IN REPLACEMENT CYLINDER HEAD AND CAM ASSEMBLY. NOTE: THE ENGINE MISFIRE CONCERN IS TYPICALLY EXHIBITED ON THE LEFT HAND CYLINDER HEAD AND RARELY ON THE RIGHT HAND CYLINDER HEAD. UNLESS CONFIRMED, THE RIGHT HAND CYLINDER HEAD SHOULD NOT BE REPLACED AS AN "EXTRA MEASURE" SERVICE PRECAUTION. NOTE: THE REPLACEMENT CYLINDER HEAD WILL NOT IMPROVE OR REDUCE ENGINE HORSEPOWER OR TORQUE ABOVE ADVERTISED LEVELS.

  • gerry bissi Jan 05, 2011

    I would try cleaning the Mass Air Flow Sensor heated wires with spray carb cleaner to disolve any accumulated varnish. Remove the MAF sensor from teh air intake system and spary it seeral times with carb cleaner or MAF cleaner. Do not touch or move the heated wires inside. See if that helps at all.

    Report results. Any other codes?



    Here's info on P0316:



    P0316 - Misfire Occurred in the First 1,000 Engine Revolutions



































    Description:P0316 code is set in addition to any type B misfire DTC which occurs in the first 1,000 revolution test interval following engine start.
    Possible Causes:

        Damaged crankshaft position (CKP) sensor
          Ignition system
            Fuel injectors
              Running out of fuel
                Fuel quality
                  Base engine
                    Damaged powertrain control module (PCM)
    Diagnostic Aids:Freeze frame data and the DTC P03xx are also stored, indicating in which cylinder the misfire occurred.
    Application Key On Engine OffKey On Engine RunningContinuous Memory
    All --GO to HD1 .






    Mass Air Flow (MAF) Sensor

    The MAF sensor uses a hot wire sensing element to measure the amount of air entering the engine. Air passing over the hot wire causes it to cool. This hot wire is maintained at 200°C (392°F) above the ambient temperature as measured by a constant cold wire. If the hot wire electronic sensing element must be replaced, then the entire assembly must be replaced. Replacing only the element may change the air flow calibration.





    typical MAF

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5 Related Answers

slave2aslave

Terrie Thiessen

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  • Posted on Sep 23, 2009

SOURCE: when slowing down , my 2005 aviator transmission

First check your tranny fluid levels.
If it is too high or too low this could be your problem and easy to fix.
If the levels are fine it could mean that it's either engine mounts,CV joint,U-joint...in this case you would need to see a mechanic.

Hope this helps.

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goalie39

Ed

  • 479 Answers
  • Posted on May 05, 2009

SOURCE: keyless entry code for 2003 lincoln aviator

Every car different, call an auto rescue or towing company, the trucks are usually equiped with slim jims, that can be used to gain access to your vehicle.

Hope this helps.
Ed

Anonymous

  • 4 Answers
  • Posted on May 07, 2009

SOURCE: 2005 Lincoln Aviator:spontaneous crack liftgate hatch??

aviators and explorers are known for that. the is a tsb out on that prob.

Anonymous

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  • Posted on May 07, 2009

SOURCE: 2005 Lincoln Aviator. Replace busted speaker third row seat??

the sub panal doesnt come off seperate you will break it if you try and you will need to remove the whole side panal its e-z afer the panals removed good luck and remember dont force or pull to hard

Anonymous

  • 4088 Answers
  • Posted on Aug 01, 2009

SOURCE: 2005 Jimmy 4X4, 4.3L, P300 multiple misfire. Have

Try some injector cleaner in the fuel--there might be some water in the fuel also. Check the air cleaner.

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2005 ford freestar check engine code reads misfire clylinder 1

Check that cylinder's spark plug wire for breakage or other wire contact with other plug wires. Do a voltage check on the coil and replace the spark plug in the offending cylinder. Cylinder misfires have also been known to happen when that cylinder has a vacuum leak.
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NEEDS A TUNE UP, DONT SEE SPARK PLUGS

Tune-ups have been long gone for 25 years now

All that is left from those days are spark plugs

I hate to tell you this, but 80% of the vehicles out
there, have had their spark plugs under the ignition
coils for about 15 years,so you have some catching
to do

You can only have have plugs in the sides of a cylinder
head where you can see them, or you can conclude you
have a hemi or top mount spark plugs & the coils are on top

Spark Plugs get replaced every 3 years

The coils you have, only last about 6 to 7 years,
then misfire & eventually ruin the exhaust converter

Your 2005 vehicle:
Should be due for the 3rd set of spark plugs
The 3rd or 4th trans & power steering fluid change (Never Flush)
MAF Sensor gets cleaned at least once a year
Every 3 years--Air Filter,Gas Filter,Cabin Filter
At 100,000 miles you replace the front Oxygen Sensors
At least twice a year you pick up a mechanic & go for a ride
You drive they look at scan tool data,fuel trim,O2,Maf etc
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Codes too lean, stalls when warm. replaced o2,MAF,filter, plugs and coils

Check for air leaks with a water spray from an old spray bottle. Run the engine and spray around gasket seams and Vacuum lines.

Lean code means too much air, not too little fuel. Engine is dumping fuel to get correct fuel ratio.
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2000 LINCOLN TOWN CAR scanner said misfire cylinder #5 today @approx. 70 mph. the car would "kinda shake" if she slowed down or went faster it would stop the shaking like symptom. PLEASE HELP, I CANT GET...

Since scanner said Misfire #5, then start there:
Pull spark plug and review for damage, worn electrodes. Replace as required.
If it has been a while, then replace all the plugs.
Do that first, then report back your findings.
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Lincoln Navigator still trembling after changing spark plugs & coils.

I think you still have vacuum leaks

Have it smoke tested

Also look at fuel trim

The front oxygen sensors get
replaced at 100,000 on all your veh
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2005 lincoln aviator codes po171 po174 p2195 p2197

This DTC is a very common issue on the V6 and refer at the little rubber elbow on the PVC wears through.

P0171 - System Too Lean (Bank 1)

P0174
- System Too Lean (Bank 2).

Those lean codes are for a lean fuel condition. The first thing I would check is for a vacuum leak. Especially look around the PCV system. Look for soft or collapsed hoses in the PCV system, (especially the rubber elbows) these are very common issue for failure and cause of lean codes. Also check around the intake manifold for leaks or any other hoses that may have come off.

Next I would check fuel pressure and the fuel filter for blockage. If the filter is old you might as well replace it. If and when you find an issue you will have to have a scan tool to reset the check engine light before you go back through emissions.

Check that stuff and let us know what you find.
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I have a 2005 f150 with a 5.4 and am getting a code po506 what is this!

PO506 --- Idle Air Control System RPM lower then expected

Clean Throttle Plate
Check for any air/vacuum leaks --

Ducting from air filter to throttle,loose or a vacuum leak
Throttle Body Leaking
MAF Sensor
IAC Valve gasket
Egr Gasket
PCV Seal

Hopefully you have installed new spark plugs since 2005
Also replaced the front (2) O2 Sensors at 100,000 miles
Cleaned MAF Sensor once or twice a year
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O3 ford escape V6 began hesitating and missing at

change the plug wires they may be bad. or you may have a bad coil
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LIncoln Aviator shaking

I had the same problem. Maybe you still have some bad ignition coils. I would change them all out. Very simple to do yourself.

Also, check the hose that is connected to your PCV valve. Mine had a huge hole in it from melting and it was sucking in to much air.
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Truck is missing

THE PROBLEM SOUNDS LIKE THE COIL PACKS, THERE IS ONE FOR EVERY CYLINDER, LINCOLN WILL REPLACE THEM FREE I THINK UP TO 150,000 MILES. THEY WILL ONLY REPLACE FAULTY COIL(S).
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