Review on ENA Set of 4 Ignition Coil Pack: Compatible with Ford Mazda Mercury - Perfect Replacement for FD505 DG501 DG504 DG541 DG507 - 2.0L 2.3L DOHC - Escape Focus Tribute Mariner by Walter Day

I used these coil packs on a 2006 Ford Escape. It all started with a misfiring on cylinder 4. Oil leakage at the spark plug, which is quite common on this model. I replaced the valve cover gasket, spark plugs and just one coil per 4 cylinder. I got it in the auto zone for $65. As a result, misfires began in the 3rd cylinder. So I decided to order these 4 packs. I was very skeptical but at this price it was worth it. Replaced all 4 coil packs a few weeks ago and haven't had any misfires since. Who knows how long they will last but if they are even a few years old I will definitely be buying them again. At that price you could buy a pack and keep them in the glove box. If they fail prematurely I will update my review but for now I am a very satisfied customer.