…but recently I’ve been experiencing some other issues.
When I accelerate there’s a high pitched ‘whistle’ or whine right around 4k, this happens in all the gears and only in the upper RPM range. At first I thought it was one of the belts but they seem pretty tight; it almost sounds like it’s sucking air in from somewhere like a crack or split in a boot or something, but I’ve checked and I don’t’ see anything obvious. Anyone else ever experience this?
Also (and this may or may not be related to the above), acceleration has not been so smooth. The car is noticeably jerky and the idle has been rough.
This is a 2000 OBW 110k miles. I replaced the plugs at 103k (when I did the timing belt, W/P, idlers, belts etc). Plug wires are OEM and I think they were replaced during the car’s 60k mi major service interval (previous owner, done at dealership).
My first hunch is the plug wires but how do you know when they need replacement? There’s no service interval in the Subaru Maintenance Schedule for plug wires, just plugs.
I realize I need to replace the knock sensor, but these little buggers aren't free! 80$ for one of these and I'm not sure it will make the car run smoother.
Need to prioritize at the moment.
Edited by 211, 21 May 2009 - 10:07 AM.