Hi Guys, I am new to the forum and have just purchased a 2001 7.3 PSD. Questions I have are my truck when it is cold will act like it has a miss running down the road 45-55 mph. Doesn't neccessarily need to be under a hard accelaration. It also has a hissing noise until it warms up also, almost like a valve is shutting. The truck came from up north around Milwaukee and another guy told me that they have a different set-up such as a heat riser would work on the older gas engines? Any suggestions would be appreciated. Also the speedo is off about 6 mph, can the dealer fix this? Thanks Again!
