Lossing power

[Loch doun ventures]

Hi, I have a 2012 merc sprinter 310 thats losses power around 2000 revs in 3 & 4 gears, there's also a little bit of vibration when this happens, there's no smoke coming out of the exhaust or engine management light on the dash, its starts & idols fine, runs fine in first couple of gears & in higher gears, any suggestions? Regards ian

 

[Steve@Avantgarde]

Sounds like youre losing turbo boost pressure. Youll have less boost at low speeds and top gears but loads in gears 3-4 so thats when youll notice it more. Probably a leak from a pipe or the inlet manifold.

Need to check the fault codes to have any idea what may be wrong though. No point guessing.

 

[Loch doun ventures]

Thankyou