Question about 2004 Ford F150

1 Answer

OK, here we go. Ford F150 5.4L 3 Valve - 90K miles - so far all work done at Ford Dealer Engine was indicating rich on ECL codes after a spark plug change for a lean. Initially spark plug change yielded a lean condition, changed plug on #3 again - went to a rich condition. All this on bank #1. 20 hours of dealer diagnostics - finally yielded broken roller lifter on #3 intake, replace roller lifer and cam itself on bank one. Now runs nicely at speed, but intermittently engine drops to a low idle at stop sign etc. below 500rpm, turns rough, if left long enough throws a P0012 code. Interestingly, if in this condition a smooth speed increase to 2K RPM and gentle relax, condition will go away, can idle smooth for an hour without mishap. But go out on freeway a few miles, come to a stop may go back into poor idle mode. We've spent $3K on this over the last 45 days, Ford is being a putz, looking for suggestions. Out of frustration replaced bank #1 VCT last week. Not much difference. Any help would be appreciated. Douglas

Posted by on


1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Expert
  • 303 Answers

Need to put it on a smoke machine to check for vac leak if no leak sound like egr valve sticking open

Posted on Feb 01, 2010


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

I have codes p0202 p0203 p2196, when i go to ford dealer they told me i need a new engine because cylinder #2 is low in compression only 17%, but the report they gave me doesn't show the code p2196.

Code P2196 indicates a rich condition. My guess is that raw fuel is passing through the non-firing cylinders is the cause of the rich condition and will probably be corrected when the engine is repaired. You can't chase a rich condition when you have a poor running engine.

Aug 06, 2015 | Ford Cars & Trucks

2 Answers

Wondering what needs to be replaced in the 60,000 mile tune up.

My dealership's 30/60/90 etc.. service is engine oil & filter, chassis lubrication, rotate & balance tires, replace engine air filter, replace in-line fuel filter, exchange transmission fluid, exchange engine coolant.Spark plugs at 90k.

May 12, 2011 | 1994 Oldsmobile Cutlass Supreme

3 Answers

My 2000 chevy silverado has ap0300 misfire code , how do i fix ti

P0300....Random/Multiple Cylinder Misfire Detected

so its got a misfire and quickest way out here to avoid a expensive garage visit is to change plugs and Ht leads and see what happens ,HT leads is proper english for fire wires by the way ,see iam learning american ---slowly---

Mar 12, 2011 | Chevrolet Chevy Cars & Trucks

1 Answer

I own a 2004 avalanche with a 5.3 vortex. I was driving on the highway @ 110km/p/hr, I then accelorated to about 125 and my engine check light came on. I took it to a garage and they scanned the engine.The...

Spark plugs don't fail to fire. They are replaced at 60,000 miles or 3 years.
Scanning for codes and using an ignition scope, are two different things
I have run OEM plug wires 17,18 and currently 21 years, on different vehicles.
Replace,only if they fail and test bad. Only one wire EVER fails,not all of them
The O2 Sensor may have set a code.
You don't change it,because of that.
You look at the data, and if it is working correctly,and what caused it to go
out of range and set the check light.

Did he check for a failed injector,on the bank that was rich?
Was exhaust gas tested, to determine the rich condition?
There is no guessing or might be's

Do a cylinder leak down test
Don't like the results,pull the valve cover, and check out the valve spring theory

What was the codes that you got when driving it?
How many miles on it?
Vehicle history?

Nov 25, 2010 | Chevrolet Avalanche Cars & Trucks

1 Answer

90k , timing belt new @ 80k worked fine sprayed engine with water to clean dust started and ran fine nest day started but then idled up to 4k and wouldn't idle down drove it about 5 miles and got off...

I have ran into this problem at my shop. There are 3 things that could be bad. Idle air control valve, pcv valve or the vacum hose for the pcv valve. Vicually inspect the pcv vale hoses. If you dont see a tear, spray carb cleaner around the hose, if engine idle changes there is a vacum leak in hose some where. If pcv valve and hose are ok than its your idle air control valve. You can attempt to remove part and clean it but this is only a temporary fix, Good luck.

Oct 17, 2010 | 1998 Mercury Tracer

2 Answers

How much oil usage is normal?

1 quart every 2000 miles. Not all cars are created equal. The same model may burn alot less or even more.

Apr 18, 2010 | 2003 Ford Escape

2 Answers

2003 F150 4.6 w/ 90K miles using a quart of oil every 3 weeks. what's most likely cause?

A V8 engine will start to consume more oil as they get more and more
miles on them. The valve stem seals and piston rings wear, and let
more and more oil burn off in the exhaust. How many miles are you
travelling in said 3 weeks?

Mar 29, 2010 | 2004 Ford F150

1 Answer

2002 Ford Ranger check engine light indicating misfire

Code P0301
Ignition Coil Pack
Ignition Cable
Spark plug
Clog or dirty fuel injector
Evap canister purge valve
Engine Compression
fuel pressure

you have 3 type of engine for your truck
2.3L 4 cylinder
3.0L 6 Cylinder
4.0L 6 Cylinder

need to know that type Engine

The reason why the service light come on because it is a hard code
not a soft code.

Let me know

Sep 20, 2009 | 2002 Ford Ranger Regular Cab

9 Answers

2001 Jeep Grand Cherokee 6 Losing Coolant

If your oil is white looking on the dip stick, you will have serious damage inside the engine.

Aug 04, 2008 | 2001 Jeep Grand Cherokee

Not finding what you are looking for?
2004 Ford F150 Logo

561 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ford Experts


Level 3 Expert

80417 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22326 Answers


Level 3 Expert

5687 Answers

Are you a Ford Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides