Hi team, pretty clued up with cars being a technician but I need your help.
serviced the car 3k ago genuine parts, car ran lovely and vastly increased fuel economy. One day joining the motorway uphill , the car acted like it had hit its rev limiter at around 3000 rpm, eased off and the car ran fine. Anytime you put it under load, rather than my usual tootling about it acts like its hit the rev limiter with a very very noticeable bang bang bang, not literally but the engines trying to rev but it won't like it hitting the Rev limiter but at lower revs. If you don't accelerate harshly it's fine , but under load not help would be appreciated
cheers