a5redwing Posted August 1, 2013 Share Posted August 1, 2013 didn't come the factory with one looks like it's prewired for it. mack can't send me parts cause computers don't show one. vin 107636 Quote Drew Link to comment Share on other sites More sharing options...
a5redwing Posted August 1, 2013 Author Share Posted August 1, 2013 a little problem I have is a popping noise under boost looks like it's pulling from my air tanks and I think a gauge would help me diagnose Quote Drew Link to comment Share on other sites More sharing options...
Solution Challenger Posted August 1, 2013 Solution Share Posted August 1, 2013 You could just add a manual gauge. You would need a gauge, 1/4" airline and a fitting to put in the intake. Your intake has a small pipe plug ( I think its 1/8 pipe thread). Remove the plug, add a fitting (90 degree, 45, or straight, whichever would work the best for you), install a manual gauge in your dash, and run the airline from the fitting to the gauge. Its that simple. 1 Quote Link to comment Share on other sites More sharing options...
a5redwing Posted August 1, 2013 Author Share Posted August 1, 2013 might try that thanks. Quote Drew Link to comment Share on other sites More sharing options...
Keffer inc Posted August 7, 2013 Share Posted August 7, 2013 Thats all my 1994 had, I thought that was factory.. Quote Link to comment Share on other sites More sharing options...
a5redwing Posted August 17, 2013 Author Share Posted August 17, 2013 Well put a gauge on today and ran it empty. I weigh 29,000 lbs empty and got 20 lbs boost. Can anyone give me an idea of what pressures I should be seeing empty or loaded? Quote Drew Link to comment Share on other sites More sharing options...
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