Isspro Guages
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Isspro Guages
Installed a set of Isspro guages and A pillar in my 97 2500 5.9 and am very happy with them except that this weekend after driving about 150mi or so the fuel press guage started making a clicking sound much like a collapsed lifter and then the guage would not read more than 10psi and is very slow comming up from 0psi from start now any ideas would be appreciated, Thanks
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The problem is the isolator...ditch it.
Run fuel to the guage temporarily (or another test guage) and you will see what I mean. You should have a needle vlave in there to dampen the pressure spikes. and I would take the pressure off the Fuel pump inlet banjo bolt (you will have to tap it 1/8" NPT). I will try to find a pic for you.
Run fuel to the guage temporarily (or another test guage) and you will see what I mean. You should have a needle vlave in there to dampen the pressure spikes. and I would take the pressure off the Fuel pump inlet banjo bolt (you will have to tap it 1/8" NPT). I will try to find a pic for you.
Last edited by Dr. Evil; 11-26-2007 at 01:42 PM.
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A pressure snubber smoothes out the pressure spikes that are caused by the injector pump.
You can get it here: (sorry theres no pic):
http://www.vulcanperformance.com/ser...Snubber/Detail
or get a needle valve:
http://www.vulcanperformance.com/ser...h-8-NPT/Detail
Both do essentially the same thing.
I suspect the problem still lies with your isolator.
Gauge might be good or bad....if you are concerned, send it back to Isspro. I think they will deny warranty if you run fuel into the guage. Which guage is it BTW?
You can get it here: (sorry theres no pic):
http://www.vulcanperformance.com/ser...Snubber/Detail
or get a needle valve:
http://www.vulcanperformance.com/ser...h-8-NPT/Detail
Both do essentially the same thing.
I suspect the problem still lies with your isolator.
Gauge might be good or bad....if you are concerned, send it back to Isspro. I think they will deny warranty if you run fuel into the guage. Which guage is it BTW?
Last edited by Dr. Evil; 11-26-2007 at 04:49 PM.