Question about 2003 Ford F150 Regular Cab

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Myf-150 with a V6 sputters at times around 50 mile an hour. Sometimes at idol. A code reader said that its lean. New spark plugs new coil. new spark plug wire, battery, air filter did not work.

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  • Ford Master
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New fuel filter? this is the most neglect part of the car. It gets clogged and causes several different symptoms.
Randy

Posted on Nov 09, 2010

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Posted on Jan 02, 2017

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2000 tundra v6 5-speed cold start truck runs great, park it for 20-30 min it will start fine but after going 1/4 mile it dies, looses power. pull over and it will backfire and sputter until it eventua


bad need of a tuneup? like new spark plugs, ?
172 , is 02 rich/ lean warning. this one is low oxy for rich.
this code can just be a victim. for sure , with misfire.
means 02 sensor stuck at rich,
what is water temp in engine coolant, at failure? less than 150F?
could be lots of things.
leaking injectors, bad fuel.
injector sticking> causing misfire.
id use a scan tool and watch all sensor when it fails.
too high fuel pressure.
misfires cold, but only luke warm cold starts not fully cold.

just one DTC, no P0300 or 30x misfire codes, not even P0300 pendings?

Jan 31, 2014 | 2000 Toyota Tundra

1 Answer

2003 Pontiac Vibe - 4 Cyl. 150k miles. Ignition coils keep going bad - every 4-6k miles. Coil 1 has been replaced 4 times, Coil 3 once. Coil 4 twice in the past year (20k miles). All spark plugs


Install new spark plugs, 4 new coils & replace the oxygen sensors

O2 Sensors are only good for 100,000 miles, then slow
down or quite

No idea why the coils do not last 5 or 6 years

Cylinder #1 is always at the front on a 4 cyl

Go to Rock Auto --Buy Wells Coils,NGK Double
Platinum Plugs & NTK O2 Sensor

Those parts are expensive because you have a Totota
Motor I guess

Clean MAF Sensor with CRC MAF Sensor Cleaner

Jan 08, 2013 | 2003 Pontiac Vibe

1 Answer

T10 blazer hard to start when cold,easy to start when hot


4.3L V6 CPI - center port fuel injection . you need 62 psi .When cold give it a shot of carb.cleaner or starting fluid ! does it start then ?

415-455 kPa (60-66 psi

Mar 18, 2017 | Cars & Trucks

1 Answer

My Windstar is reading lean on the left and right banks, and a misfiring plug. I have replaced plugs and wires, put in a new coil, a new ERG valve, a new manifold, new plentum gaskets and am still having...


have your injectors cleaned, if they are clogged it can cause sputtering and plug misfiring. You can try putting some Lucas fuel treatment in your tank, but it sounds like its time to have them cleaned.

the shaking can, and most likely is, caused by the tires being out of balance.

Oct 28, 2009 | 2000 Ford Windstar

2 Answers

Engine missfire at 40 to 50 miles per hour


If you have recently replaced spark plugs, one could be misfiring. Most newer engines are designed to run hotter, thus the need for double platinum spark plugs are needed.

Aug 07, 2009 | 2004 Lincoln Aviator

2 Answers

2002 pontiac grand prix code reader says it is running lean dies runs rough


Sounds like a large vacuum leak. Possible hose off, intake gasket blown, etc. Listen for any vacuum hissing sounds from a leak somewhere.

Apr 04, 2009 | 2001 Ford Escort ZX2

3 Answers

Sputters


Many thinks it is the intake manifold gaskets... i will change mine this week-end and i'll keep you guys posted. i had the same codes as above with the coils and it still sputters. so i am going foe the vaccume leaks before the expensive repairs.

Jul 14, 2008 | 2004 Ford Escape

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