
2009 Audi A4 Quattro 2.0L Engine
At idle only engine runs rough and has engine knock. Increase the idle slightly above idle and knock is gone and runs great. Is there an oil pressure check valve or controller for oil pressure that differentiates idle from higher RPM? Lots of reading, noth...
FIX posted 4/21/2021
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Message Closed
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VIN | WAULF68K79 |
Engine | 2.0 L / 4 cyl / GAS |
Trans | 6-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Affected | Engine |
Conditions | Knocking at Idle |
Message Closed
Vehicle Data
2009 Audi A4 Quattro
VIN | WAULF68K79 |
Engine | 2.0 L / 4 cyl / GAS |
Trans | 6-speed Automatic (Electronic) |
Delivery | Fuel Injection |
Affected | Engine |
Conditions | Knocking at Idle |