Loss Of Power

[glenwayne]

hi my 2001 ford galaxy 1.9tdi keeps lossing power seems slugish all the time its like when you put your foot down it takes time for the turbo to kick in wont go faster than 65-70 it is like it hicups and i have to stop and switch the engine of to reset it unpluged the maff and it seemed worse do anyone think is a dodgy maff

[chrispb123456]

hi my 2001 ford galaxy 1.9tdi keeps lossing power seems slugish all the time its like when you put your foot down it takes time for the turbo to kick in wont go faster than 65-70 it is like it hicups and i have to stop and switch the engine of to reset it unpluged the maff and it seemed worse do anyone think is a dodgy maff

Wouldn't think MAF if it's worse when disconnected, sounds like turbo is overboosting which could be sticking turbo vanes, you need to get under the engine see if you can move the turbo actuator rod the limit of it's travel, it's a tough spring on it so be prepared with a peice of rag to avoid sore fingers.

Also check inside EGR valve as this gets clogged up with soot.

[RogerCheshire]

My 2001 1.9 Tdi had similar problem and Ford Garage diagnosed ( incorrectly ) a faulty Maf.

My problem was actually a faulty TMap ( Temperature and manifold absolute pressure ) sensor which is downstream of the engine. Can be seen on top of engine next to engine cover on right hand side.