I have a 06 140 passenger that suffers from turbo lag and very rare LHM. The turbo lag is much more pronounced when the engine is cold. I have replaced every charge air hose multiple times, pressure tested the charge air system, torqued all charge air hoses over and over, replaced every sensor I know relates to the charge air calculations, cleaned and lubed the turbo actuator linkage multiple times, removed and inspected the wiring harness from engine to MAF/o2/ intake air temp ect. Nothing has made any difference.
Today I had my daughter blip the throttle while watching the turbo actuator and noticed a noise that sounds like an air leak coming from the drivers side of the engine bay. I can not for the life of my locate the source of this sound, but I have noticed that while the turbo is lagging on acceleration the noise is present, and when the turbo decides to kick back in the noise is gone. The turbo lag is very abrupt, no turbo then push you back in your seat. I have attached a video showing the noise. It sounds to me like it's coming from something near the fuel filter, but I can't see anything in that area that would to my knowledge affect the charge air system. Does anyone have an idea that I may not have thought of? https://vimeo.com/173164563
Sent from my iPhone using Tapatalk
Today I had my daughter blip the throttle while watching the turbo actuator and noticed a noise that sounds like an air leak coming from the drivers side of the engine bay. I can not for the life of my locate the source of this sound, but I have noticed that while the turbo is lagging on acceleration the noise is present, and when the turbo decides to kick back in the noise is gone. The turbo lag is very abrupt, no turbo then push you back in your seat. I have attached a video showing the noise. It sounds to me like it's coming from something near the fuel filter, but I can't see anything in that area that would to my knowledge affect the charge air system. Does anyone have an idea that I may not have thought of? https://vimeo.com/173164563
Sent from my iPhone using Tapatalk