Passat starting problems?

celica1994

Hey. My passat is having starting trouble in the morning time, when i start the car it judders and sometimes cuts out, but when i go to pull off the odd morning there is a complete lack of power in the car for the first 4 seconds, i did replace the coolant temp sensor a while back with a spurious one, could this be causing the issue?

Bpmull

Year model engine ?

sandydan

diesel or petrol model

celica1994

sorry guys shoulda said... its a 02 TDI 130bhp diesel

sandydan

sounds more like fuel supply,was diesel filter changed recently, could be coolant sensor but spurious are usually ok though. try diagnostics on it if you know a friendly mechanic usually around €30 will tell accurately,other sensors could be acting up, a friend replaced turbo twice before diagnostics showed sensor fault, it needed cleaning

celica1994

cheers, yea i changed the fuel filter recently, could it be to do with that?

sandydan

not unless a seal is twisted and that is unlikely,thought it might be blocked or contaminated with water.just check around engine for loose connections.

unless washed diesel and that would sound like ball bearings falling into plastic cup when revving under strain.

id still get vag diagnostics, usually accurate

sandydan

interesting article on Turbo Problem thread posted by Visual whose car was stopping after starting, might be similar to yours