Hello, I'm new to the forum and I have a 93 Blazer Sport, 4.3 Vortec. I am reading 42-44LBS pressure. I read the specs at 55-62Lbs.I know this is probably a ereally dumb question BUT, is there any leeway in the pressure. Although I'm fairly certain I'm way under. The engine is priming at the lower pressure and the engine won't start. Meanwhile I'll go but the fuel pump, I really would like to GET OUT of dropping the fuel tank to replace the pump. LOL thanks Rick

 

Try replacing the fuel filter first, its worth a shot.

 

Will Do, Planned on getting filter anyways so I'll just try the filter first. Thanks.