Bought a used 2000 Buick Lesabre Custom from an estate. Very clean and nice riding automobile. SES light on, tachometer fluctuating, and intermittent and persistent misfire . Threw parts at it per codes; spark plugs/wires, coil packs, ICM, crank sensor, fuel pressure regulator, ECM, the list goes on. Referred by a friend to Northwest Auto Specialist Inc., He informed me that they are the best. He was correct. They found the issue that two other repair shops couldn't. To say that I am overjoyed with EVERYTHING about their service is an understatement. All of you backyard mechanics like myself who run into a brick wall, take your problem to Northwest Auto Specialist Inc. Their service, in my opinion, cannot be equaled. And their prices are great too. They most certainly ARE the best.