Hello all, I just bought a 2002 Escape from a friend of mine. It has 136,000 miles on her and is a V6. As I never drove it prior to buying it I do not know if this problem could be somewhat related to me cleaning the engine. I took delivery of the vehicle Sunday and quickly got to work gunking the engine down a few times when it cooled, and cleaned the engine more with cleaner. While it was still slightly warm (engine) I fired it up to let the moisture burn off, it ran just fine.
Fast forward to this morning when I just went out to fire it up for a few minutes. It is running rough, the RPM's drop and go up slightly around 850, when i tap the gas it stutters as well as very delayed. I called a ford dealer, they highly recommend I change the spark plugs first because they bet that's the problem. What other things should I check for this problem?
This is my first ford ever so please help me out. Thank you.