1999 Infiniti Q45 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1999 Infiniti Q45

Intermittent failure of a purge control valve in the evaporative emission system can cause the Check Engine Light to illuminate. A failed valve should be replaced to correct this problem.


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I Replaced the pump and it still does it. I have also replaced the tensioner

Sometimes when I turn the key nothing happens. I have to wiggle the gear shift then it will start. The dealer says it must be in failure mode for them to diagnose the problem.

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this is a great car for the mileage. nonsmoker, taken great care of the car.

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