Test sequence
WARNING: This page is about a different car, the 1999 Volkswagen Jetta, 1998 Volkswagen Jetta, 1997 Volkswagen Jetta, 1996 Volkswagen Passat, and 1996 Volkswagen Jetta. However, it is still accessible from the selected car via links, so may be relevant.
- Start engine and run until radiator coolant fan has switched on at least once.
- Increase engine speed to about 2500 RPM for 2 minutes.
If the hydraulic lifters are still noisy, locate malfunctioning lifter(s) as follows:
- Remove cylinder head cover.
- Rotate crankshaft clockwise, until cam lobe of lifter to be checked is pointing upward.
- Measure clearance between cam lobe and lifter.
If clearance exceeds 0.1 mm (0.004 in.):
- Replace lifter.
If clearance is less than 0.1 mm (0.004 in.) or zero.
- Proceed with checking as follows.
- Press lifter down using wooden or plastic wedge. If free travel in excess of 1 mm (0.040 in.) is felt before lifter contacts valve, replace lifter.