Join Date: Jul 2004
Location: Northern Virginia
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The belt squeak part and loss of power steering assist sounds like the belt is in need of change / check the condition of the belt tensioner.
The rumbling - could you be more specific? Metallic noise? Low frequency, high frequency? Chassis vibrations? Anything else seems to be non-functional/working weird other than the noise? Did this rumbling noise seem to coincide with the belt squeak?
When was the last time you got a comprehensive tuneup (ie., new plugs, check plug wires, clean TB, change fluids, etc.)?
2002 Toyota Corolla S, 1.8L 1ZZ-FE VVT-i
2003 Toyota Matrix XRS, 1.8L 2ZZ-GE, VVTL-i (RIP)
2009 Toyota Matrix XRS, 2.4L 2AZ-FE VVT-i
2009 Toyota RAV4 Limited, 2.5L 2AR-FE Dual VVT-i