Fuel Pressure Gauge Question

[mconstable]

Hello all, finally getting around to installing my gauge, question is... do I need the isolator?

Also, could someone point me towards instructions for install, I've lost mine.

Thanks!

 

[RDyson]

Yes, you need the isolator to keep fuel out of the cab. Use antifreeze on the top side of the isolator to the gauge. Do a search for directions. There's a lot of info here on the site.

 

[CJ8Rockcrawler]

I would definitely use the isolator... you do not want to be inviting fuel into the cab. On a side note, mine keeps bleeding down... It worked fine when I first installed it, then over time it seems to develop a small leak (above the isolator) that I just can't seem to track down. I'll start the truck and it will work fine... but anytime I get on it hard or am on a long trip it seems to bleed down to zero and never comes back up. I'm pretty sure it is the gauge/hoses and that my lift pump etc is in good shape. Any thoughts on where to look or how to track the leak down?