12-09-2013, 07:42 PM
bought a 306 there and sorted out a few niggles with it, but there's a slight problem with the engine.
its not so noticeable from the front of the car but the noise is quite apparent from the rear of the car.
it sounds like a 'puff-puff-puff' noise from the exhaust through the rev range, almost like a misfire. The note changes as you rev it but there's a constant 'putter putter' noise that speeds up as the revs increase. It happens both under load and off load revving, and i'm not sure what the problem is.
the car does let off some black smoke during off load revving which i have been told is unusual for a standard hdi, which tells me there's definitely an issue on the fueling side. When i removed the fuel filter the fuel in the bowl was quite mucky with dirty deposits in it, so i'm thinking that it could be a problem on the injection side of things.
The car DOES need a service so i will be doing this, but in the meantime hopefully get this issue sorted.
things i have tried so far are;
remove back box in case of collapsed baffles
drained fuel bowl (really dirty in there)
put some injector cleaner into the fuel (been told this is a bad idea)
checked air filter for water
removed MAF and this makes the engine note change on idle but doesn't alter the main issue.
its not so noticeable from the front of the car but the noise is quite apparent from the rear of the car.
it sounds like a 'puff-puff-puff' noise from the exhaust through the rev range, almost like a misfire. The note changes as you rev it but there's a constant 'putter putter' noise that speeds up as the revs increase. It happens both under load and off load revving, and i'm not sure what the problem is.
the car does let off some black smoke during off load revving which i have been told is unusual for a standard hdi, which tells me there's definitely an issue on the fueling side. When i removed the fuel filter the fuel in the bowl was quite mucky with dirty deposits in it, so i'm thinking that it could be a problem on the injection side of things.
The car DOES need a service so i will be doing this, but in the meantime hopefully get this issue sorted.
things i have tried so far are;
remove back box in case of collapsed baffles
drained fuel bowl (really dirty in there)
put some injector cleaner into the fuel (been told this is a bad idea)
checked air filter for water
removed MAF and this makes the engine note change on idle but doesn't alter the main issue.