Ask Honest John

Honest John Ask Honest John » Fiesta 1.4 TDCi (05 plate) engine whooshing noise when accelerating
What is life like with your car? Let us know and win £500 in John Lewis vouchers | No thanks

Fiesta 1.4 TDCi (05 plate) engine whooshing noise when accelerating

My Fiesta 1.4 TDCi (05 plate) has started to make a whooshing noise when accelerating hard from about 1700rpm upwards. This has just started happening since all four injectors seals were replaced.

I noticed this immediately when driving home after the injector seals were replaced. The car has been back to the garage who have checked everything was re-assembled OK. The noise sounds like it is behind the dashboard but you can only hear it when accelerating.

It may be just me, but there also seems to be a slight loss of power when accelerating.

Any suggestions or pointers to give the garage when it goes back for the third time later this week would be most helpful.

Asked on 5 March 2011 by MYFIESTA

Answered by Alan Ross
Well what you are describing is in fact the failure of the injector to "seal" against the injector seat. It may be that although they have replaced, the seals that sit in the cylinder head have been eroded away by the escaping gases resulting in damage to the seat. If this is so then it may require that the seats need refacing usuing a seat cutting tool.

Looking for a garage you can trust? Honest John's Good Garage Guide has thousands of reader recommended garages, plus how-to guides and tips on servicing.

The Good Garage Guide
Similar questions
When I brake, the brake lights stay, if I pull the pedal back, the lights go off but the engine starts reving its head off. It's the same when driving: the engine always seem to be racing. Computer says...
I recently purchased a 807 2.0hdi 136hp. On test drive it seemed to have good acceleration. It was given a basic service and cambelt change before i picked it up. Now I have it, it seems to be very slow...
I have just got my first car which happens to be a Ford Ka 2010. I've noticed that compared to the other cars I have been driving recently the accelerator seems to sit very high, so much so that if when...
Related models
Good handling and comfortable ride. Tidy design. Reasonably spacious. Plenty of choice second-hand. Good reputation for reliability.