5000S Wagon L5-2309cc 2.3L SOHC (NF) (1988)
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replace vacuum check valve/hose assembly 3 (arrows)
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Part No. 443 820 620 C
Note
Arrow on vacuum check valve must point toward intake manifold (vacuum source).
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check vacuum reservoir 5 for oil contamination and clean if necessary
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replace (hard black plastic) vacuum supply line 1 (located in engine compartment) with new (white) vacuum line
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Part No. N 020 139 1
Filter Installation
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locate rubber vacuum supply hose 1 (in engine compartment) leading from intake manifold to vacuum check valve 2
Note
The location and routing of the rubber vacuum supply hose differs from model year to model year and between turbo and nonturbo engines.
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cut vacuum supply hose 1 between intake manifold and T-connector at a location where the hose runs horizontal
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install hose clamps (2), Part No. N 024 510 3 over cut ends of hose
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install filter Part No. 811 201 511 D into hose ends so that outlet 1 of filter is on top and arrow on filter points towards intake manifold (vacuum
source)
Note
The filter acts as a trap for the engine oil and must be installed horizontally.
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position hose clamps over filter ends and tighten
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check climate control/programmer operation