I starting noticing a rattle
ing noise coming from my gauges and it seems to be coming from my fuel pressure gauge. I don't see anything visually loose and think it could internal. Does this happen alot? I have isspro mechical gauges...

 

When does it rattle? Key on pump on, engine running, while driving? Is it pressure related? I ask it determine if it is a loose bulb, or something pressure related.

 

all of the above... i checked the bulb already. i read somewhere a needle vavle hepls if u dont run an isolator

 

Does the needle jump around?

 

it just vibrates alot. it keeps steady psi if that what you are asking.

 

Its better to have a isolator,but if you have a needle valve try to close it a little more to keep the VP from making it jump around.

 

You will quickly damage that guage if you dont put a needle valve or pressure snubber to dampen the pressure spikes from the VP-44.

 

Why isit just starting to happen now though. I have had the gauge isntalled for a couple of months and it didn't start making noise till recently.