Possible Stuck Actuator Or Blown Turbo?

[JamieB]

Hi,

I bought a ba xr6 Turbo over the weekend with 190, XXX km

It had a miss when it would come on boost so I replaced the coil pack and spark plugs with genuine ford items,

while I was doing this I also cleaned the TB, cleaned the PCV and as per a guide on here sprayed some WD-40 down the wastegate line.

After this I took it for a test drive and the miss was gone but it was making a howling noise from 3k+ and would go away further up. The noise sounded like it was coming from the exhaust

After a couple of minutes of driving I heard a 'pop' noise from under the bonnet and heard the sound of compressed air rushing out, when accelerating I could also hear a 'zzzzz' whizing noise so I thought an intake pipe had probably popped off so I babied it the 2 minute drive back to the workshop.

Checked all intake pipe's and vacumm lines and everything seems fine, when driving the car it seems very underpowered and feels like its not making any boost, however it starts and idles fine.

It it possible that the wastegate actuator is stuck open? or is it more likely the turbo has been damaged? Im going to check again for boost leaks tomorrow

What else should I be checking for

CLIFFS:

Replaced coil pack, Sprayed WD-40 down wastegate hose, clean TB and PCV

Now car is acting like it has no boost, underpowered and making 'Whizzing' zzzzz noise (Can hear turbo spinning?)

[Ralph Wiggum]

Rubber joiner on the tb.

25points for cliff notes. Forum needs more cliff notes.

[FPV TRANNY]

Agree as well.Sounds like you have popped off a hose or rubber coupling to the TB.Done it plenty of times...

[JETURBO]

Cliff is chit

But what custard bum said op

[arronm]

Actuator hose was off, built to much boost and blew a hose off. Check the actuator.

[JamieB]

Actuator hose is and was still on fine,

Check tb coupling and all the other hoses I touched yesterday, all seem fine, removed and installed again anyway and hasn't made a difference

[JamieB]

Found the poblem to be a bad leak from an intercooler pipe,

However now the howling noise from the exhaust is back, Its a stainless steel X-Force system, I will check for broken mounts etc

[Ralph Wiggum]

Check all your manifold to cyl head and turbo to manifold and turbo to dump pipe mate. Common as big toes for them to loosen up and make all kinds of funky noises.

[FPV TRANNY]

Check all your manifold to cyl head and turbo to manifold and turbo to dump pipe mate. Common as big toes for them to loosen up and make all kinds of funky noises.

Yep.. have to agree..Fuggin things come loose a few times..