2009 f150 fuel pump driver module problems

#2009 F150 FUEL PUMP DRIVER MODULE PROBLEMS TRIAL#

This could be caused by damaged honeycomb inside of the catalytic converter. Always be on the lookout if you have a converter failure because engine drivability issues kill catalytic converters.ДЄ lesser, more annoying, issue you might get is a exhaust rattle when idling or accelerating. If this happens, likely you have a catalytic converter that has been damaged due to misfires. Eventually, the truck will start to backfire through the intake and even fail to accelerate to over 30mph in severe cases. At the dealer, we generally see these trucks go a long time with this misfire condition. 5.4L 3v Catalytic ConvertersД«e wary of driving with this engine if you are experiencing a misfire of any kind. 2008+ Engines use a different design that does not break. More details are available in another article I wrote which include step by step instructions on Replacing the spark plugs on the 5.4L Triton at home. SP546 is the revised spark plug, the SP515 is the old one. This issue was fixed with an updated spark plug. They have extended sleeves that reside down inside the head that tend to break off because of possible carbon/rust build up. These plugs generally last around 100k miles but they are a bear to remove when you do go to replace them. The situation is slightly ironic since earlier 2 valve 5.4L (97-03) tended to blow spark plugs out of the head but later 3 valve 5.4L (04-07) tended to break off in the head. Due to the design of the combustion cylinder the plugs needed to protrude down through the head to the combustion chamber. Each of these sensitive coils are placed upon a specialized spark plug that tends to break when removed. Spark plugs are a whole different animal on this engine. Avoid cheap aftermarket coils, only use Motorcraft DG511. Generally we diagnose the cylinders with the misfire and replace the spark plug and ignition coil for those cylinders. The ignition coils easy to replace though. It will cause a light jerk or bucking that some describe as a transmission issue. Symptoms of a failing ignition coil is cylinder misfires under load, accelerating, or most notably cruising up a small grade at arond 55mph in overdrive. The ignition coil do fail internally as well. The spark plug wells can also fill up with oil or coolant from nearby leaks causing the spark to short to the cylinder head. These deteriorate with age and weak spots in the rubber can cause the spark to jump to the cylinder head instead of the spark plug. Most of the coil failures are actually because of the coil boot, the piece of rubber that covers the spring that touches the prong to the spark plug.

Most trucks will need multiple replacements in it's lifetime.

The general consensus is that this type of ignition system is the most efficient design offering independent control, but the coils do suffer from failures likely related to heat. COP systems are now very commonplace in the automotive industry. The 5.4L Triton features a coil-on-plug (COP) design a separate coil for each cylinder that sits atop a specialized spark plug (more on that adventure in a minute!). The most common thing we need to mention, but it is the easiest to fix, is the ignition system.

#2009 F150 FUEL PUMP DRIVER MODULE PROBLEMS TRIAL#

No harm in trying.ДЄlso, you can get a free 30day trial of Amazon Prime to get free shipping on most the products I link! Combined with the above credit card offer, you can save a lot of money. I can get you an easy $100 bonus and some available credit if you apply for a Discover Credit Card using this link. Repairing this stuff can get really expensive. This article is written with the 5.4L 3v Triton truck engine in mind, but it also applies to the 4.6L used in trucks, vans, and cars. These problems range from easy to change coils, to the dreaded spark plug, all the way to the scary and expensive timing chain issues. It does have common reoccurring problems you should be aware of. Everyone sees these late model F150's with the 5.4L Triton engine as a risky investment but I'm here to tell you this engine can be solid. There are many people who are looking at buying a used truck (New to them!) or considering keeping their old truck for a few more years. Ford 5.4L Triton Common Problems in Trucks Last Modified : Mar 30, 2021

2009 f150 fuel pump driver module problems