Soooo I always wanted a Ford Panther platform car just for my work commute. Preferably a Town Car, but I settled on a 2009 Grand Marquis that I found local. I posted a question about the Carfax on it a while back and got my questions cleared up, so I bought it. 5 grand, what could go wrong right? Well I drove it pretty extensively when I went to check it out. Rode pretty much like you’d expect an 11 year old car would, some rattle on interior parts but nothing out of the ordinary. Solid engine with no noise good transmission, smooth shifting. No leaks and the brake pads were new. All ok there. My first mistake was not bringing a code reader with me, but more on that later. Two days after I got it, the engine light came on. Wonderful. Took it to my buddy’s place, he hooked it up to the reader. Cylinder 6 misfire. Pulled the coil out, spark plug hole is full of yellow, nasty smelling liquid. Coolant? water? Who knows. Blew it out, re-installed the coil, no more misfire. I noticed the coolant reservoir was low, so I topped it off. For the next couple weeks, I noticed the level would change, and the heater would start to blow cold after a while. Anyone that knows about the Ford modular 4.6’s knows that the old intake manifolds would crack and leak. The newer ones with the aluminum crossover were supposed to solve this. I had a sneaking suspicion that the manifold on this car had a leak somewhere but the ground underneath and the engine valley were always dry. I was driving it one morning and got 5 miles down the road and the engine temp gauge wasn’t rising at all. This was after I replaced the thermostat thinking that would solve the heater issue (it helped but didn’t stop it from going cold completely). Took the stat housing off and there was a piece of plastic stuck in the stat, holding it open. Great, now I know the manifold is ****ed. Ordered an OE replacement manifold online and took it to the shop. 5 hours of labor and $500 later, new manifold is on. Seems to run fine, heater STILL doesn’t work right. Today I went to check the oil and I’ve got crusting coolant leaks around the stat housing, under the aluminum crossover where it connects, and around at least 2 coolant ports where the manifold meets the block on each side of the engine. TWO WEEKS after the replacement was put on, and it is already failing spectacularly. I’ve had it with this damn thing. It’s a pile of ****. I’ve replaced the spark plugs, the intake manifold, and done 2 coolant flushes and it still doesn’t work right. I’m going to take it back to the shop tomorrow morning to see what they say but I’m guessing I’m gonna be SOL on this one. I’ve never bought a used car before this and I’ll never do it again. It isn’t worth the gamble and the headache. Figured I’d be ok since this was like one of the top five most reliable and bullet proof cars that Ford ever made, but no dice. Thankfully I can still buy out my 3 year old Sierra from the leasing company, it’s almost as good as new still. I’ll never understand why people buy used if they have to deal with this on a regular basis. At least fixing guns is fun..