hi, so i have a 2002 wrx, and it has a fuel leak. i have had it fixed before, very expensive and it came back when it got cold again. my friend's husband, a mechanic, told me that the hoses contract when it gets cold, causing the leak, then heat up, expand, and everything's fine, but that i should have all the hose clamps tightened. he tightened all but 2, said he would have to take the whole thing apart to get to them, let's try this and see if it works, it didn't. so my question is, is this repair necessary? i mean, if it's just going to happen every time it gets cold, why repair it? but it also doesn't seem safe to drive around with a fuel leak. thoughts, suggestions?? thank you!