Your car or truck relies on engine vacuum for a lot of applications, on things ranging from HVAC doors and pop-up headlights to critical vehicle systems like your power brakes and ignition timing. While most engines naturally create adequate vacuum, if your vehicle has a diesel or small-displacement engine, then there’s a good chance it
Intake manifold vacuum is a key indicator of engine performance. By measuring vacuum under different engine loads and conditions, you can track down problems within your engine and make the necessary adjustments or repairs. The key is having a reliable engine vacuum gauge and then knowing how to read it properly. We’ve said it before,
A vacuum gauge is an invaluable resource for tracking down engine issues. The key is understanding what your gauge is trying to tell you. We’ve put together this quick-guide to reading your vacuum gauge to help you identify potential mechanical or tuning issues more quickly. We’ve seen this topic covered before, but it’s information worth repeating,
There are a handful of telltale signs your catalytic converter is on the fritz. Poor acceleration when stepping on the gas pedal Noticeably less fuel efficiency Dark, sooty smoke exiting your muffler Engine starting trouble Failing an emissions test A pungent sulfuric or rotten smell A Check Engine light in conjunction with any of these
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