Vanagon Syncro AWD F4-2109cc 2.1L (MV) (1989)
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verify proper thermo sensor
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P/N: 025 906 041A (Digifant I Vanagon)
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P/N: 025 906 041 (Digifant I Vanagon Syncro)
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replace with correct part if necessary
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check for vacuum leaks
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repair if found
CAUTION
Part numbers are for reference only. Always check with your Parts Department for latest information.
Step 2. Carbon Build-Up, Diagnosis
Visually inspect the intake valves and ports for carbon build-up as follows:
Cylinder to be checked has to be at top dead center (on compression stroke).
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remove either right or left side intake manifold
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using inspection mirror and flex-light, determine degree of carbon build-up on intake valves (through intake ports)
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compare your observation with chart
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reinstall intake manifold with new gasket
Step 3. Fuel Injection System, Cleaning
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engine MUST be at operating temperature
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remove intake air boot (except Syncro)
WARNING
Fire hazard. Do NOT smoke or have anything in the area that can ignite fuel when working on fuel system.
Vanagon