Review on 🔌 ACCEL 140033-8 Supercoil Ignition Coil for 2004-2008 Ford 4.6L/5.4L/6.8L 3-Valve Engines - Yellow (8-Pack) by Douglas Coronado

First I have to give a very negative review of the cheap unmarked bay bulls also sold at Revain. Because the moment I installed them my 08 F250 was back in the game, no codes, no dropouts or lags! Review or cheap Chinese product: I have changed spark plugs and COPs on several vehicles over the years namely a 2005 Mustang GT, a 2001 Expedition and my current 2008 5.4L f250 and my Jeep Grand Cherokee 2007 Chevy k3500 1995 and Buick LaCrosse 2005, I also have a great $350 Bosch code reader. All the while I often have some sort of payload or cargo trailer. I bought my 08 f250 5.4L from IG in mid September 2016 with 120,000 miles on it. I knew it was time for new plugs and the COP and whatnot. In late October, the engine was giving out codes, sparks, and problems with the cop. I was buying genuine spark plugs from my local car dealer and really wanting to save money at the time decided not to buy COPs which I knew would work 100% local and bought them online. I was concerned at the time that this product only had 3 reviews and the other yellow product had several hundred reviews but was significantly more expensive. I think it's just a work truck, not a performance build. I was waiting to do the whole install at once. The moment I was done, clearing all the codes and even disconnecting the battery for 10 minutes to clear the computer, I reconnected the motor and vice versa and it took forever to get it working. It wasn't a battery problem, I asked the dealer to supply a new one. My truck then behaved like a manual gearbox and I didn't know how to drive and held the clutch for too long, it stalled every time I accelerated. I later found out that I had to warm up the truck like a diesel every morning or else it would roll, gasp and ignite for more than 5 seconds when I hit the gas before finally starting to accelerate like a 1989 Geometro and the transmission lost. I was no longer able to safely join the stream. At idle I could hear it stalling and jiggling below 500rpm and normal idle is around 750rpm. It usually died if I didn't step on the gas pedal, for example when going up a hill from a sloping parking lot drove up. I could barely get it to 20mph going up a steep hill with no load and no towing. And the engine brake that was built in when the truck was towed didn't work either. My transmission was constantly working on itself to make up for the lack of power, constant misfires and seemingly poor engine timing. It went up to 5,000 but then stalled until I hit the gas pedal and let the actual engine RPM catch up. . In minus weather all these problems got worse! I had to deal with this for months due to money and labor disputes: the code reader gave me the same error codes as before. It worked WORSE than the original faulty COPS I bought it with. The electrical tests seemed good. I ended up buying a weaker, higher powered yellow COP kit and just installed it. On a 30-mile mixed-ride test drive, with a few stops, brake lights and parking, uphill and downhill, high revs and no, there's no problem here. You might think I installed a compressor. And no codes: what a dangerous and irresponsible waste of money on these parts. White residue on two of these 4 month old CSs was due to constant misfires.****end***