Town & Country Van 2WD V6-230 3.8L VIN L SMFI (1997)
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vacuum gauge.
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Heavy gloves should be worn.
CAUTION: Do not cover the tailpipe opening for an extended period of time as damage to components or overheating may result.
17. As temporary back-pressure is built, full manifold vacuum should be observed at the vacuum outlet fitting.
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Without back-pressure, and engine at approximately 2,000 rpm, the gauge reading will be low.
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This low reading is normal.
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At idle speed, the gauge reading will be erratic.
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This is also normal.
18. If full manifold vacuum is not present at the outlet fitting, but was present at the inlet fitting, replace the valve.
NOTE: The EGR valve, valve control and attaching hoses are serviced as one assembly.