× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
Re: Two tips for the price of one
Posted to Technical Tips Forum on 9/10/2020 2 Replies

Hi Joe,

Hook the gauge to an intake vacuum port (may need to be adapted). With the engine idling watch for a steady needle at around 18-20Hg (Average) on the gauge.

If the needle bounces, that often indicates and airflow disruption in the engine, such as a... Login to read more.

2 Replies Received (View Replies)