Will they pay for the part if it turns out it's not necessary? I had a similar problem on my 98. It was a part located at the front of the engine and very near the fuel filter. It had many fuel lines running to it. When mine failed, the dealer said he had many more in the shop for the same reason. I'm sorry I can't describe the part better or be of more help but I'd think long and hard before I spent 1200 bucks on a guess.