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volkswagen Workshop Repair Guides


Jetta L4-1781cc 1.8L SOHC (ACC) Can (1995)

Maintenance > Timing Belt > Component Information > Service and Repair > Removal and Installation > Page 1132

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NOTE:  The ignition timing will also affect the manifold vacuum levels, verify the timing is correct prior to measuring the vacuum.

If the after-repair vacuum level is lower than the pre-repairs level this would be an indication that the timing belt may not be installed correctly.

NOTE:
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The vacuum checks should be made at similar engine speeds and temperatures.

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Check "manifold vacuum" at a source downstream of the throttle plates.

Maintenance > Timing Belt > Component Information > Service and Repair > Removal and Installation > Page 1132

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