I've got a 740 GLE (16 valve) that is having some engine problems. Recently the check engine light was on. Took it to the dealer (my wife's decision, it was her car at this point), and the tech cleaned the knock sensor. He said the engine had rod knock, and that it would need a new engine at some point. (To his credit, he wasn't trying to get more money out of me; he was trying to discourage me from putting any more money into it.) Anyway, since the engine does seem quieter after it is warm, I suspect it is only piston slap. Still, the car is not running well. Last night I could hardly get it out of its parking space after it sat at the airport for 4 days. I couldn't keep it running until I finally sat in the space giving it gas for about 10 minutes. I'd like to have another mechanic look at it. I don't want to go to the dealer, and I am just trying to decide whether I need to go to someone who calls himself a Volvo specialist. I have a good garage---a Shell station---only three blocks from me where I wouldn't hesitate to take most cars, and where I feel very confident that I won't get completely ripped off. (Their prices may not be the lowest, but they won't lie to me.) I am just wondering I can expect them to be competent to really evaluate the engine and help me decide whether getting a replacement is necessary, or whether I need to go somewhere that deals exclusively with Volvos (or at least with foreign cars). I assume that my Shell station would not be the place to go to if I had to have the engine replaced?