Noises Under Bonnet.
#1
I have recently noticed when at 4500+rpm I get like a squeel sound, its not a hiss. Any ideas before I take the car back to the dealership, the problem only occours when you have got your foot well in. It is not an alternator belt problem or sound.
Darren.
Darren.
#2
What model and year is your car?
It may be a leaking dump valve... this was a known problem on 97 year cars... valve spring was uprated for 98 cars, so fitting a 98 valve might fix the problem. I did this on my STI 3 and it did fix it, for a while.
It may be a leaking dump valve... this was a known problem on 97 year cars... valve spring was uprated for 98 cars, so fitting a 98 valve might fix the problem. I did this on my STI 3 and it did fix it, for a while.
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