Lack Of Power

[bcl]

Rapt,

I was trying to be helpful.

Peter,

That's well spotted if that was the real cause, as it's not an obvious problem to detect; for my info was it actually the valve sticking or a faulty spring. The ecu would not like too much overboost, before cutting power.

Still, it really pays to have a boost gauge.

Brian

[rapt]

bcl not having a go at u

Dont need a boost gauge

Go on how hard it throws me back in the seat :banghead:

[bcl]

Rapt,

Once you had a boost gauge in a turbo car, it's hard to live without one.

Perhaps another thread.

Brian

[rapt]

:banghead: thanks mate

[XR6T4ME]

Geez Rapt,

Others have been crucified for much less! No need to get your knickers in a knot - just having some with ya.

I will keep it in mind next time when replying to your posts. I will put on my 'Clever' hat.

Cheers

[twinxrs]

Rapt, you may have a sticky swing valve in the turbo housing, this can cause normal boost and then complete loss of turbo pressure. We saw ths problem on an xr6t in december and sorted the problem after the vehicle had been back to ford on 5 occasions. Need less to say the owner was stocked when we sorted the problem.

Peter

APS

Hi Peter

How did you diagnose the problem ?

Were there any fault codes logged ?

What was the fix ?

Just interested, as I suspected that I had a turbo boost problem, but the dealer claimed that it was just the "adaptive" ECU parameters were wrong...

Thanks,

Scott

[rapt]

No worries XR6T4ME

Been a bit snakey lately

Going on holidays on Wednesday should come back refreshed and better sense of humour :banghead:

[aps]

HI guys, We had a xr6t which was driving the owner crazy, normal power for 90 percent of the time approx 180 kW then the power would drop away to approx 120 Kw for a short period before returning to normal.The owner had it back to the dealer many times, and the dealer was really trying to sort the problem though they gave up after five attempts.We have seen this type of problem before on other turbo cars so we started by graphing the boost pressure, after sixth dyno test we saw turbo pressure fall away to nearly zero from that point we suspected a sticky swing valve in the turbo housing,our guess proved to be correct.Removed the turbo freed up the swing valve hey presto problem solved without much drama.Checked for fault codes all was clear and the engine is now running fine and making good power

[olcoolone]

Funny you had the same problem, our's went in for the 3000k service and about 500 k's after that the car went gutless, it just would not pull hard and when launching of the line it felt very doughy.

This lasted for about 2000K's until about 2 weeks ago we went for a drive in hills and went to over take a car doing about 60Kph, we were in 2nd gear (manual) and pulled out to over take it and agian felt sluggish and then all of a sudden this whistle started and it really launched hard, it has been great ever since.

[aps]

Would be worth checking the swing valve, if its sticky this may be the cause of the intermittant power loss.