1.9TDi won't boost when cold

[tsalta]

Local dealership said turbo has gone but whern the car warms up it's fine! Changed the fuel filter and Air meter to try and sort it. No faults showing.Seems to be only faulty for first few mile, like I say when everything warms up it seems to be okay. Any ideas peeps?

[martin1810]

Get someone to start it and watch to see if the turbo actuator moves. It sounds like this isn't moving properly until the car warms up which suggests a vacuum leak.

[tsalta]

Thanks for that. We'll check the hoses next. Wouldn't it always be down on power if there is a leak though? Listen to me! If I was that good I wouldn't have to ask in the first place.HeHe.

[martin1810]

Your are right but sometimes the engine manages to compensate for a slight leak as you use more revs.

[gordo73t]

Definately worth checking hoses, remember things expand as the warm up so it's maybe a small enough leak that closes itself when warm