2007 Ford Crown Victoria Ignition Coils

 

The 2007 Ford Crown Victoria needs 8 ignition coils for the 4.6L V8 it uses. Whether it's the Regular Crown Victoria, or the CVPI & P71 Police interceptors, they all use the same 4.6L V8 with the same DG508 ignition coils. When these coil packs fail, they tend to fail not too far apart from each other. This is especially true if the coils are all over 7 years old. Replacing these can seem expensive if you have called any of the local auto parts stores. There is no need to spend $40 or more per coil. We have the full set of 8 quality ignition coils for almost the price of just one of the local stores coil packs. At the same time, we also get the same or better quality of the expensive coil packs because we buy and sell direct, rather than sell to the distribution chain. Our goal to save you money on fixing your 2007 Crown Victoria doesn't stop at just the parts. We would also like to help you find the problem and do the work yourself. Especially turning a $500-$1,000 job into just fractions of that amount. Something that most of us can afford. While we're at it, we're going to back our statement up right here, right now. Literally. On this page, we are going to help you diagnose a misfire in your 2007 Crown Victoria, find the right OBDII scanner, and do the work yourself. Let's get started.

 

How Diagnose a Misfire in Your 2007 Crown Victoria

 

Remember, the 2007 Crown Victoria shares the same engine on all civilian and police (CVPI & P71) platforms. The coils are a common problem with these kind of Fords, and fixing the issue is quite simple, but most people just don't know what to do. First things first, if you don't own an OBDII scanner, get yourself one. Even if you don't know too much about cars. The 2007 and up Crown Vics use CAN BUS. Nearly every modern OBDII scanners have this. They cost under $10 from lots of online vendors and will save you thousands of dollars and a lot of time. There are also OBDII scanners with Mode 6 capabilities. Mode 6 is useful for the 2007 Crown Victoria because Ford is one of the manufacturers that lets you read data in the PCM (PCM= Powertrain Control Module/main computer). For example, it's common to have a misfire in your Crown Victoria with no check engine light. A check engine light is good because you can plug any basic OBDII scanner in and get a code. We'll talk about Mode 6 later.

 

If you get any code from P0301 through P0308, then you have a misfire for sure. Once you locate the misfire, you can check out the specific cylinder that the coil is on. Start by swapping the ignition coil. You will need a 7mm bolt to remove the coil and swap it over to the next cylinder. Fuel rail will not need to be removed to do this. Once you do this, reset your PCM with your OBDII scanner. You can also reset the PCM by disconnecting the battery. Now drive your Crown Vic until the check engine light comes back on. Rescan to see which code it's throwing. If the code follows the bad ignition coil to the next cylinder, then you will need an ignition coil for sure. If the code remains, then you may have a bad fuel injector, spark plug, wire harness, or something else. From here you can change all 8 ignition coils. It is a straight forward replacement from here.

 Now about that Mode 6 Diagnostic. If you have a misfire in your 2007 Crown Victoria, but there is no check engine light on, remember that there is a way to pull these misfires up. The PCM records all misfires and does not turn on the check engine light until the misfire exceeds 2.3% of the firing cycle. This is still enough to drive people crazy. Grab your Mode 6 scanner. Go into non continuous monitors (diagnostic monitors on some scanners). Select Test ID $81 and you will be able to see exactly how many times the specific cylinder misfires. To see the full Mode 6 steps, check out our article and video related to using Mode 6 on Fords.