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  • Nissan 300ZX
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What is the vac pump on a Nissan 300ZX?

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βˆ™ 2008-11-26 21:17:02

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Answer Because of differences in the vacuum characteristics of a turbo and non-turbo 300ZX the turbo models (Z31 seriers anyway) have a vacuum pump added under the front bumper that comes on when sufficient vacuum is not available from the engine for only the following....water solenoid for heater, ac/heater controls, cruise control.

2008-11-26 21:17:02
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