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Pat is correct as usual, the whine also occurs during acceleration, but ICE noise covers it up.
Many tires get noisier as they wear past 50% of tread thickness. My Nokian WRg2s started out very quiet but at 35k miles they began to show an...
In my case the periodic "Clunk" in the steering was fixed by replacing the upper steering column sub-assembly. $90 to diagnose and $800 to...
Since the problem is air getting into the hydraulic lines, check that all of the connections were done correctly. You actuator may not be the...
Don't buy a new rear refill. Just cut down the better of the two front refills that you just removed and use it to refresh the rear blade. JeffD
I can't vote since your choices are too restrictive. I am very disappointed in GMs assortment of cars, but I don't hate GM. I grew up in a...
your Prius will detect an overheated Inverter and protect itself. I replaced my Inverter coolant pump (electric) and the ICE water pump at...
Yes, a weak fob battery has this symptom.
I hope that you re-lubricated the slide pins. The US based Prii tend to have problems with stuck pins (in the front calipers, we have drums on...
There was a TSB on the brake chirp in 2004-2007 Prii. The brake system is identical in the 2010 so it likely to be the same cause. Air bubbles...
China is currently the dominant supplier of Rare Earth Elements (REE) and is using that position to pressure manufacturers of batteries and high...
The other factor is that the ICE is never subjected to rapid changes in torque. The Computers do very smooth changes (the cutoff of power when a...
Because of the price "premium" on premium. We are cost sensitive. The price you pay for "petrol" is scary. The ONLY car I have ever owned that...
That's 31.5 MPG in CS mode! How fast were they driving? I average 46 MPG in my 2004 Prius year around and just under 50 MPG in good weather. JeffD
I've trained that dealer :) (Three refreshes to date, 60k, 120k & 180k miles - each for about $100). You may have to discuss the price with them;...
They have no equipment that can do an ATF flush in a Prius. They are just trying to get extra $ out of your wallet. My Dealer charges me $100 to...
Not quite a chcken/egg. I agree that if you remove all of the heat from the exhaust, the exhaust volume will be greatly reduced thereby reducing...
You need the passive element in the loop to help stabilize the feedback control system. The system models the noise as well as the acoustic path...
When tuning for minimal sound , the system acts as a short circuit at the end of the exhaust pipe and reflects the pressure wave back towards the...
There are two forms of wasted energy in the ICE exhaust system. The waste heat is one and this thread has focused on it. The other is exhaust...