Mercedes W126 560SEL 89 chasing down a minute vacuum leak in EGR pipe & Cali EGR temp sensor solved

[@charlestimmis273]

Hi Peter: Very interesting that yesterday I used a vacuum pump to see if my EGR is working properly.. lol..... it help pressure and it closed when the pump removed. However, when I did a smoke test a while back, there was little smoke coming from the edges of the EGR valve,,,,,

[@inovahightechltd]

The EGR valve is holding vacuum just fine and opens and closes the exhaust side as intended. I should have mentioned it in the video. Thanks for reminding me. I will added in my next video.