Hello,
I have a 2014 Ford Fiesta ST (95k miles but oil changed religiously and not driven hard at all) that has power issues, issues and description as follows
- Car started to have loss of boost at top end of power band for a few months
- Loss of power progressively got worse and happened earlier in the power band over a few months as I was gentle on driving and thinking it was the turbo (specifically the waste gate)
- No engine light and computer code said misfire in cylinder 4, but I didn't think this was related
- I changed the boost solenoid and car started to drive better but still had issues - there was improvements though, which again made me think something in the turbo was wearing out, wastegate or bov module
- I had complete power loss and it drives a little above idle and sounds like compression is being loss - has a flapping noise - I limped the last 200 yards to get home
- I put a new turbo on it and it did not fix the problem, still behaves exactly the same -- new turbo was complete OE unit with boost solenoid, wg actuator, and bov module
Does anyone know what is wrong with it? No engine light coming on, but I will check the computer codes when able. If this was a carb engine without all the electronics I would say it is a compression issue, almost like driving a 4 cylinder engine with 3 spark plugs pulled out, again, it does not have rpm much above idle (chugs/limps) and it stalled when I was trying to get back up on ramps after installing the new turbo. Is there a mechanical module that controls the valves that is not on the turbo (as mine is new), based on symptoms it seems like a mechanical failure due to boost / pressure rather than an pure electronic failure (and currently is no computer error codes).
Thanks in advance and any help is much appreciated.
I have a 2014 Ford Fiesta ST (95k miles but oil changed religiously and not driven hard at all) that has power issues, issues and description as follows
- Car started to have loss of boost at top end of power band for a few months
- Loss of power progressively got worse and happened earlier in the power band over a few months as I was gentle on driving and thinking it was the turbo (specifically the waste gate)
- No engine light and computer code said misfire in cylinder 4, but I didn't think this was related
- I changed the boost solenoid and car started to drive better but still had issues - there was improvements though, which again made me think something in the turbo was wearing out, wastegate or bov module
- I had complete power loss and it drives a little above idle and sounds like compression is being loss - has a flapping noise - I limped the last 200 yards to get home
- I put a new turbo on it and it did not fix the problem, still behaves exactly the same -- new turbo was complete OE unit with boost solenoid, wg actuator, and bov module
Does anyone know what is wrong with it? No engine light coming on, but I will check the computer codes when able. If this was a carb engine without all the electronics I would say it is a compression issue, almost like driving a 4 cylinder engine with 3 spark plugs pulled out, again, it does not have rpm much above idle (chugs/limps) and it stalled when I was trying to get back up on ramps after installing the new turbo. Is there a mechanical module that controls the valves that is not on the turbo (as mine is new), based on symptoms it seems like a mechanical failure due to boost / pressure rather than an pure electronic failure (and currently is no computer error codes).
Thanks in advance and any help is much appreciated.