2009 Saturn Ion - Knocking noise starts when turning key in ignition and while car is running. Sounds like it is coming from under dashboard. Does not fluctuate in noise while driving..just a constant knocking noise. Banging on dashboard, turning heat on/off does not help.Heat works fine, car runs fine except the knocking noise.
Bad motor or transmission mount.
SOURCE: SHAKING AND KNOCKING NOISE
This is the problem with suspensions problem of the car or major problem with the engine in the car get it check by the dealer as this may factory defective part install as this car is still under warranty.........................................................
SOURCE: SHAKING AND KNOCKING NOISE
it could be tht the exhaust pipe is loose and therefor makes shaking and kinda banging noise. hope i helped! ;-)
SOURCE: Knocking inside left rear panel
It is possible that this may be your electronic fuel pump cycling on off to maintain fuel pressure. It may be an indication that the fuel pump is on its way out.... Have you done a trouble shoot with an auto manual specific for your Explorer yet? There should be a process of elimination guide or chart to help isolate the problem.
Hope that helps...=)
patrick
SOURCE: Are my struts out on my 04 Saturn ION?
I agree. I see sway bar links go bad and make nosie much more often than struts on Ion's. Take it to a service center you trust.
SOURCE: I have a 2009 Dodge
sounds like u have an electric mode door motor,in ur hvac housing stripped . move the mode selector to different positions to amplify noise an sort of control noise. u have a blend air door motor, mode position motor, for example inside air an outside air recirculating door motor, or defroster mode motor or actuate the heater position an u should b able to control noise by changing modes, thats wen u know u found it wen u can make the noise come an go. also one of ur selector positions is obviously not workin due to a stripped motor or broken blend door. good luck
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