im working on a friend's 94 and im not sure where to begin. he complained it is haard to start, just have to keep cranking on it but after it starts it runs fine. It has been sitting in the shop for 4 days at about 40 degrees and it wont start at all. i cracked open an injector line and no fuel at all. The only thing i can think of is a bad lift pump or overflow valve? 
