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| Audi Engine >> HYDRAULIC VALVE LIFTER NOISE
Hydraulic Valve Lifter Noise On
1988-91 Audi 2.0, 2.2 & 2.3L Engines
The AERA Technical Committee has been informed of hydraulic valve lifter noise on 1988-91 Audi 2.0, 2.2 & 2.3L engines. This noise may be heard both at engine start-up and during low engine RPM. To reduce the possibility of undesirable lifter noise, Audi now supplies a new lifter, Part #034109309AD for all 4 & 5 cylinder engines.
It is important to note that it may take as long as a week to purge all air from this new lifter after installation. At the time of this publication, AERA is unaware of an aftermarket supplier of this lifter.
The AERA Technical Committee
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