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Okay so 750 RPMs is normal. That makes me feel a tad bit better. Update: I reinstalled my old downstream sensors. So now I’m running the car with all original oxygen sensors. I reset the codes and I’ve been driving it to and from work everyday. It drives but definitely not as smooth as when I...

So here's an update: I reinstalled the old upstream sensors that were originally on my cats and all the codes went away. I kept the cheap sensors I got from amazon on the downstream connections. I reset the codes and they didn't come back for 100s of miles. BUT the engine started idling very...

Theres a leak in my roof, I haven’t been able to fix it completely. Although it is odd the storage part of the trunk is rusted to hell

I wish this car was manual. I really love driving it.

Okay that is very helpful. So I should be able to take out the coils and plugs inspect them for water damage/corrosion? I have never driven an LS before this one. I did notice, however when I first bought the car the engine was idling at 1500 RPM. After I changed the oxygen sensors the engine...

I am assuming 'COP' is the ignition coil? What does COP stand for exactly? Can someone explain to me how an improperly sealed ignition coil can cause gasoline to leak into the cats? From my understanding the coils are in the top of the engine. I just don't understand how there is something wrong...

I have a moon roof but that wasn't the problem. The leak was coming from the windshield and door. Okay so this is a little overwhelming but here's where I am with my thought process. As far as the catalytic converter goes I replaced all the oxygen sensors with these...

Hey guys I bought a 2004 Lincoln LS V6 with 90,000 miles recently. I traded my 2000 Toyota Celica and $1,600 for it. I thought it was a pretty good deal. My Celica had 142,000 miles, the exterior and interior was in really rough shape, and it had multiple cylinders with misfires. I valued the...