Thanks for the help. I bought the fuel system rely and replaced it myself. Very easy and I don't know Jack about cars. Still don't know yet if this was the problem, but have my fingers crossed. If not I'll try the other fuel pump or injection relay, but this looks harder to get at and may choose to do it by an inde when I have something else done. Hopefully though I won't need to replace this part. You are right, the fuel system relay is right where it could really overheat, especially in hot weather. I could see how these things might need to be replaced every 3-5 years. But there's nothing in the maintaince schedule about this per my inde Volvo mechanic. Thanks again. I may have saved myself a hundred bucks or so.