- Mar 5, 2002
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Recently I noticed that my car seems to make more of a high-pitched whine at 3,000+ RPM than before. She's a 2001 GT with a stick-shift. The noise is not deafening, just loud enough so that I notice.
At first I hoped it was a pulley tensioner or idler pulley burning up. But now I am starting to wonder if the noise is valvetrain-related. I even put my ear on the oil filler cap and opened the throttle by hand. And, sure enough, I could hear the high-pitch noise more clearly. Otherwise,the performance of the car seems to be OK.
I read the TSB about the "ticking noise" that can be heard at the left front fenderwell on some 4.6L SOHC cars. I remember following the TSB diagnostic procedure myself, and thinking that my car passed the test. So I do not think I suffer from the "ticking noise," at least not to a great extent.
But I am not liking this whine. Can anyone help? Is this normal behavior? I am inclined to say that it's not, since the car was very quiet before. The car is out of warranty. Is there something I can have adjusted, e.g. cam chain tension, that might help? Or am I just screwed? If I need new heads, I may just trade the car in. I don't like owning something half-a$$ed, nor do I see the economic value in putting brand new heads on the car.
This really sucks... I really want to keep the car, but I want her to run well.
At first I hoped it was a pulley tensioner or idler pulley burning up. But now I am starting to wonder if the noise is valvetrain-related. I even put my ear on the oil filler cap and opened the throttle by hand. And, sure enough, I could hear the high-pitch noise more clearly. Otherwise,the performance of the car seems to be OK.
I read the TSB about the "ticking noise" that can be heard at the left front fenderwell on some 4.6L SOHC cars. I remember following the TSB diagnostic procedure myself, and thinking that my car passed the test. So I do not think I suffer from the "ticking noise," at least not to a great extent.
But I am not liking this whine. Can anyone help? Is this normal behavior? I am inclined to say that it's not, since the car was very quiet before. The car is out of warranty. Is there something I can have adjusted, e.g. cam chain tension, that might help? Or am I just screwed? If I need new heads, I may just trade the car in. I don't like owning something half-a$$ed, nor do I see the economic value in putting brand new heads on the car.
This really sucks... I really want to keep the car, but I want her to run well.