no1kicker Posted December 11, 2006 Report Posted December 11, 2006 I have read that you tap it when the car's running and see if your idle changes. Never tried it before. What is the problem? Quote
GnatGoSplat Posted December 12, 2006 Report Posted December 12, 2006 You can most likely test it with a hand vacuum pump and a multimeter. I think the output voltage will correspond to a certain "hg of vacuum. The service manual probably has info on what kind of voltage you should be seeing based on the vacuum on the port. Quote
ron350 Posted December 13, 2006 Report Posted December 13, 2006 Some one posted this on another forum but I would like to see info on testing a GM MAP. http://www.autozone.com/servlet/UiBroker?ForwardPage=/az/cds/en_us/0900823d/80/04/f7/cf/0900823d8004f7cf.jsp Quote
dcjredline Posted December 14, 2006 Report Posted December 14, 2006 Bring it to AutoZone or Advance Autoparts they can test it for FREE no muss no fuss for you. Quote
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