Quote Originally Posted by Big Girl View Post
Same problem, diesel 3L GU 2004. It seems to know when it's close to home and does it on the same hill every time! On the third MAF sensor. New air filter and thorough clean of the intake. She will be coasting along fine then suddenly loses a little power, like she is suddenly driving into the wind. And she does it constantly when towing the caravan! Any ideas welcome. No we haven't done a diagnostic, that's next.
Possibly a boost leak. Are you running the original intercooler?