misfire and knocking noise when revved over 3500rpm
Posted: Sat Mar 12, 2011 3:50 pm
hi,my 2nd post here and unfortunately the same problem!
my 406 hdi 110 runs ok,drives ok but the engine sounds slightly knocky?the car drives ok but when i rev the car to 3000rpm or just over the engine shudders,misfires and almost cuts out(this is when stationary)if im driving and take it over this i get loss of power untill the revs come back down again.had the bonnet open and when i rev it and it starts to miss,i notice smoke coming out of the egr valve as if its overfueling?
me and my mechanic freind are stumpped????
changed the injectors,checked the egr valve and also checked the cat and these were all fine.
pls pls somebody help!
many thanks!
my 406 hdi 110 runs ok,drives ok but the engine sounds slightly knocky?the car drives ok but when i rev the car to 3000rpm or just over the engine shudders,misfires and almost cuts out(this is when stationary)if im driving and take it over this i get loss of power untill the revs come back down again.had the bonnet open and when i rev it and it starts to miss,i notice smoke coming out of the egr valve as if its overfueling?
me and my mechanic freind are stumpped????
changed the injectors,checked the egr valve and also checked the cat and these were all fine.
pls pls somebody help!
many thanks!