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Comments
Things I did:
1) Replaced the spark plugs with Champion 7989. They don't break in the engine.
2) Gapped the plugs to .45 which is a little lower than recommended.
3) Replaced all the ignition coils (got 8 of them for about $120 on ebay)
4) Changed Fuel Filter
5) Used mass amounts of injector cleaner.
Despite all of this, it made very little difference.
6) Replaced the battery (believe it or not, this helped a lot. Bad batteries cause sensor problems due to low voltage)
7) Cleaned the throttle body, PCV valve and Mass Airflow Sensor.
This made the largest diffence...issue fixed.
Lesson learned, carbon and gunk builds up in these engines really, really bad. You won't believe the difference 1 hour of time, $2 dollar gasket and $3 bottle of carb cleaner makes. Should do it ever 30K-40K miles or so.
I have also heard changing the motor mounts helps but haven't had to do that.
Good luck,
James
Things I did:
1) Replaced the spark plugs with Champion 7989. They don't break in the engine.
2) Gapped the plugs to .45 which is a little lower than recommended.
3) Replaced all the ignition coils (got 8 of them for about $120 on ebay)
4) Changed Fuel Filter
5) Used mass amounts of injector cleaner.
Despite all of this, it made very little difference.
6) Replaced the battery (believe it or not, this helped a lot. Bad batteries cause sensor problems due to low voltage)
7) Cleaned the throttle body, PCV valve and Mass Airflow Sensor.
This made the largest diffence...issue fixed.
Lesson learned, carbon and gunk builds up in these engines really, really bad. You won't believe the difference 1 hour of time, $2 dollar gasket and $3 bottle of carb cleaner makes. Should do it ever 30K-40K miles or so.
I have also heard changing the motor mounts helps but haven't had to do that.
Good luck,
James
V6 or V8, it is normally not a concern as the engine is balanced either internally or externally/ Not sure what Ford engineers did, but the Triton does vibrate as stated in many concerns listed here.
2nd, road vibration in 2004-? I had my 2004 in the shop for a intermittent vibration numerous times and the dealer I bought the truck from in TX could not fix it. Vibration on uphill climbs and light loading. In 05/06?, I happened to be headed to IL for holiday and stopped by the dealer in my hometown. 30 minutes later, never had the road vibration again. Dealer successfully balanced all tires ON the truck. Appears the 04 F150 extended cab maybe others are/is more sensitive to tire vibrations and amplifies the problem. Find a good tire or Ford dealer to balance the tires on the vehicle.
3rd, Engine miss at idle or on acceleration, I agree, have the plugs coils and wires checked and perform all routine maintenance. Remember the fuel filter, too many times it is left unattended too long and takes out fuel pumps or injectors. Run an approved injector cleaner through your tank once in a while, check manufactures recommendation. But using a good fuel that has cleaners to begin with is best in my opinion. If your favorite gas station does not post or brag about cleaners, they most likely do not have the best fuel in town. Use quality and manufacturer approved fuels.
Hope this helps someone!
I would suggest using all available communication. Tweeting usually works! Facebook should get their attention. Remember, Facebook has the worlds attention. By putting a post on it will definitely get their attention. Facebook has over 5,000,000 people listening.
The truck looks good, the heart of the beast has a problem. There are only four parts they have to research: Engine (with over 5k miles); torque converter; transmission; drive-shaft. Each of the parts should be assessed separately. Then as a whole.
They should value their customer base, if they want us to remain loyal.
My Benz is having the same problem. I will start torquing only after the car is on all four wheels. It makes sense.
When the truck is shaking, if I give press the accelerater it stops shaking???
ANY IDEAS??? please.. Thank you!
I just wanted to post a quick suggestion for you owners with that unknown vibration at take off... Mine also had the weird vibration... It was caused by the Air Intake Hose where it mounts to the drivers side quarter panel... It was just loose enough that it would only vibrate right at accelleration .. Just wedge something in there and solved the prob... But, it too has the infamous "diesel" sound.. Was told from dealer on day 1 that was just the way they sound.. 55,900 mi and about to do a plug change.. Wish me luck..
I own a very well maintained 2005 f150. Had a similar vibration, almost like the transmission was failing. Vibration always happened when the truck was in a higher gear and while the excelerator was gradually being pressed, like when I was starting to climb a hill. Usually at speeds between 40-55mph. Turned out to be one bad ignition coil, and 5 different spark plugs where periodically missing. The mechanics drove the truck with their diagnostics hooked up to it and fiigured it out. The repair was done at the dealership, and the cost was under $300. Problem totally fixed.
I took my truck in for the third time for a vibration at Idle. The just installed a new engine for me. The problem had been it would never register a fault code. This time it did the put a manual oil pressure gauge on the engine and at idle the oil pressure jumped all over causing the computer over compensate. I would recommend using a manual oil pressure gauge. I think this is a known problem the dealer is a good dealer but they were very fast to offer a new engine This was all covered by the factory warranty of 60,000 mile power train I have 54,000 miles on my truck. I would check this out new 5.4L retail installed 6,000.00 comes with 3 year 36000 mile warranty. Maybe you could plead your case to the dealer if you bought it new
Hope this helps.
Any suggestions is greatful