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cseidel's avatar
cseidel
Explorer
Aug 21, 2014

Cummins compressor

When I start my 8.3 cummins (2002) it seems very slow to build up air pressure unless I bring engine speed up to 1200 RPM. Air pressure holds for hours after it is up to pressure. Am I having compressor problems?
  • Thanks to all for the replies. It gives me a lot more confidents.
  • Mine takes awhile at idle but holds air and gets up quick if I push on the throttle. Sounds like you are OK.
  • My '96 8.3 is slow at idle too. I recently had the air dryer replaced and the shop said everything is good.