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Error Code P0303 Ford Expedition

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If there is not a Cylinder Misfire Counter, then you might have to switch components—such as coils, spark plugs, etc.—in order to isolate the root cause of the misfire. A plugged injector won't be detected by the PCM and throw a code, it will just throw the misfire on #3. BAD spark plug or spark plugs BAD Ignition Coil Boot (on COP Ignition Coil Systems). is it possible...5 answersSeptember 15, 2009misfiringreplaced no 5 coil and miss cleared up two weeks later no 1 and 6 show misfiring,replaced coils...1 answerSeptember 22, 2009Related ItemsP0300 Random misfireRecurring misfire on

i clear the code and it will come back within 100 miles. 01-28-2007, 07:29 PM #10 ccculbreath Junior Member Join Date: Jan 2007 Posts: 9 Thanks: 0 Thanked What spark plug wires should I used? On my vehicle the problem was a spark plug wire. Later, Al (Admin note: Please don't take posts from other sites and paste them here.

Po303 Ford Explorer

One or more misfire codes (P0300, P0301, P0302, P0303, P0304) will be stored in the car or pick up's computer's memory. If so make sure it's installed properly If not clean it before you try to reset the cpu. __________________ . 01-28-2007, 07:22 PM #9 ccculbreath Junior Member Join If there are symptoms such as the engine is stumbling or hesitating, check all wiring and connectors that lead to the cylinders (i.e. As the spark plugs, ignition cables, distributor cap and rotor, and ignition coil wear over time, their ability to transfer the needed spark to ignite the air/fuel mixture inside the combustion

P0304 Cylinder #4 Misfire. Posts: 467 Like I say in my post on my experience with changing plugs for the first time, you are better off doing it yourself because you will never know if i also changed the TPS and the fuel filter.and checked for leakes around the intake manifold with propane. Code P0303 Ford Windstar It is important to determine what is causing this amount of compensation.

Even it has the spark and fuel, but the compression is low, that cylinder will misfire and set a misfire code. Code P0303 Ford Ranger Scan shows #2 misfire and somet...2 answersApril 24, 2009Mutiple cylinder misfireI have a problem the car runs fine until it warms up then it runs with a mis when I hooked Ford 4.6 and 5.4L Intake Manifold Gaskets are made of Plastic and are notorious for causing engine misfire conditions when they fail and start leaking anti-freeze into the spark plug tubes https://www.obd-codes.com/p0303 Password Register Forgot Password?

spark plugs). Code P0303 Ford Mustang I just had a thought, I need to search these pages to see what the cylinder numbers are, that would tell me where no 3 plug is. P0301 Cylinder #1 Misfire. It is not intended as repair advice and we are not responsible for any actions you take on any vehicle.

Code P0303 Ford Ranger

Another thing that will cause a misfire (normally at idle) is vacuum leaks coming from a large vacuum hose or the Intake Manifold Gasket. http://repairpal.com/OBD-II-Code-P0303 spark plugs). Po303 Ford Explorer Leave a comment below or tell us if the information above help you fix the code. Code P0303 Ford Taurus Instead, make your post in notepad and then paste it from there to both sites.) al52269 View Public Profile View Gallery Find all posts by al52269 #2 12-30-2007, 06:36

I install Motorcraft Platinum Spark Plugs, and Bosch Platinum Wires. The lean misfire may decrease or disappear as the engine speed increases because the efficiency of the volumetric flow into the combustion chambers increases dramatically. Veröffentlicht am 28.06.20132003 2004 Ford ExpeditionFriend called to see if I can figure out the DTC codes on his 2004 Ford Expedition. It had 98K miles on it when, I bought it around 3 years ago. Code P0303 Ford F150

I've also heard in other cases the problems were faulty fuel injectors __________________ . 01-28-2007, 01:48 PM #5 ccculbreath Junior Member Join Date: Jan 2007 Posts: 9 Thanks: Start by checking for intake leaks an if no leaks are found the next step is to replace the spark plugs on cylinder 3. Wird verarbeitet... Need more help with a p0303 code?

Wird geladen... P0303 Ford Windstar 2003 This material may not be reproduced without the author’s consent. i really do not think it's a burnt valve, the plugs and fuel filter was changed back in the summer so i don't think it be those.

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Depending on how many "old" ones you still have on the engine, you may want to buy a complete set, just to have as spares. Is your truck running ok and just showing a light still? What test can i perform on it to see if its clogged? P0303 Ford Focus More importantly, at the end of the article, I'll tell you where to find the step-by-step misfire test articles.

It took me 4 hours, due to after putting new plugs in the socket. Here are the main points of this article: What is a Misfire Condition? It is also important to note and record any other codes because the engine may be misfiring due to the failure or malfunction of another system or component. Should run about $100 for the set.

Schließen Weitere Informationen View this message in English Du siehst YouTube auf Deutsch. Is This Something I Can Do? Also i can feel the van going hard when accelerating like, sometimes i try to speed up and it lags to speed up. Wird geladen...

Though all ODB II vehicles have computer controlled timing, be sure to verify that it is within spec, even if it uses individual coils. Where do I Find the Test Articles? Well, while driving home about 2 weeks ago. Often the owner will bring the vehicle into a shop complaining that the timing is "off." This is partially correct because a misfire does involve a mis-timed combustion event.

www.performancedistributors.com __________________ FTE Sponsor Performance Distributors www.PerformanceDistributors.com PerfDistIgnition View Public Profile View Gallery Find all posts by PerfDistIgnition #5 01-02-2008, 02:09 AM LxMan1 Moderator Join Date: Dec 2001 Depending on how long the ignition components have been in the car, it may be a good idea to replace them as part of your regular maintenance schedule. i also checked for intake manifold leaks with propane. Anmelden Statistik 24.508 Aufrufe 38 Dieses Video gefällt dir?

I would suggest spark plugs, spark plug wires, distributor cap, and rotor (if applicable). The socket keep getting stunk on the new spark plug and boy it was a pain in the *** trying to get socket off. What motor? If the Engine System has a Misfire Counter for specific cylinders on the Scan Tool Data Stream, pay very close attention to the cylinders(s) named in the misfire code(s).