Last post on Nov 18, 2009 at 12:30 PM
You are in the Subaru Legacy & Outback
What is this discussion about?
Subaru Impreza, Subaru Outback, Wagon
#3118 of 3121 2004 impreza ts (wagon)
Nov 16, 2009 (9:31 pm)
Just a follow up to the previous post-
the vibration noise is coming from somewhere under the hood- engine, transmission, or otherwise. It doesn't sound like a loose dashboard or exterior problem-
#3119 of 3121 Re: 2004 impreza ts (wagon) [theredsub]
Nov 16, 2009 (10:29 pm)
If it's only happening at 1500 and 3000 and not at the speeds in between (like 2000 or 2500) try parking on level ground and rev up to 1500 and 3000 with the transmission in neutral. If you still get the vibration at those speeds, you know it's something vibrating in harmonics with the engine. It will probably not be in the tranny or drive line, because the vehicle is stationary. It might also help to have someone rev up the engine while you look under the hood. You might see something vibrating, like a power steering pump, AC compressor or mounting bracket for the alternator. You could also look under the car and see if any of the heat shields in the exhaust system are vibrating. If the vibration is fairly loud and coming from under the hood you should be able to find it . Good luck.
#3120 of 3121 Re: 2004 impreza ts (wagon) [propwash49]
Nov 17, 2009 (11:41 am)
Thanks for the advice! I'll try it and post the results-
#3121 of 3121 Re: 2004 impreza ts (wagon) [propwash49]
Nov 18, 2009 (12:30 pm)
My co-worker lease a new 09 Impreza sedan had similar concern. He accelerates the car from standing when it reaches to about second gear the transmission making humming noise. He brought the car back to the dealer. Dealer contacted the manufacture and claim there is no mechanical issue. The dealer did made some adjustments to reduce the humming noise.
I bought the Impreza Outback Sport in February and have the same power train as the sedan. I received no noise at all.