I have a 2004 Ford Focus ZTS 2.3L manual transmission. In the past When I try and push on the gas, I have to push it really hard to get the pedal to go down. This has happened twice since I bought the car once at 20,000 miles and once at 40,000 miles. I have 65,000 miles and I am expecting it to do it again. The first time it was covered under warranty, the second time they told me it was do to some carbon build up on the throttle cable, and told me they warned me when I brought ithe car for the oil change that this was going to happen. After arguing with them over whether they told me or not, I got them to take $100 off the bill. I was just wondering if anyone else has had this problem.