These things rattle, shake, vibrate, and just seem a little less civilized compared to modern vehicles. But today I think I figured out my TPS was bad so I ran down to autozone and purchase a new one for $42 and changed it out right there in the parking lot. When I got back to the office my buddy was on the phone trying to fiqure out why his headlight on his VW touareg was flickering. The shop told him he needs a new bulb and quoted him $169 for the bulb and that did not include labor. He almost couldnt believe it was going to cost him over $200 for a bulb. I tried to help him find a cheaper bulb online and instructions on how to change it all the while being thankful I drive an XJ.