Timberman

Making me crazy! The gauge will go through spells, sometimes for weeks, where it will tell me I have 4 or 5 psi. Doesn't change at all during accelleration or whatever. Will go down to like 2 or 3 psi and linger. Then suddenly, like today, it jumps up to 15 psi, waves around during acceleration and all, works like a champ. What could cause this, a clog in the filter or line, an air bubble somewhere, bad electrical connection?

P.J

You running an isolator set up? Where are all your gauges grounded?

See here:
https://www.dieseltruckresource.com/...d.php?t=123065

Timberman

Thanks bud. Yeah I have an isolator, and the wire running to the cab is electrical I believe, and not filled with antifreeze. The diameter is tiny. Not sure about the grounds. I'll go check.

No way to run the fuel into the cab the way its set up now, I'd need new lines and all, I believe.

P.J

The line is probably similar to the one's a lot of us run (exact same one as the boost line, they are tiny).
It is an Isspro EV series, right? I doubt it's electrical. You can have someone re-plumb it for you with a needle valve. Honestly, a total of less than $15.00 in parts.

Check out Moparman1973's recent posts, he's got a nice up close picture of the whole get up, everything can be bought at a local NAPPY.

Timberman

PJ, you're the Man. Thanks!

P.J

I don't know about all that. If you lived a little closer I could help you spend all kinds of money on that truck!

adidasman23

where you from PJ

P.J

Port Deposit, Maryland. I'm at an elevation of about 360 feet here, but the town itself (about 6 miles from me) is known for being directly in that path of the Conowingo Dam on the Susquehanna River. Once they open up more than 17 or so flood gates, someone is getting wet. Pretty neat to see really, heavy rains in PA can cause a lot of trouble.