Vacuum Pump being an important component in Jeep Grand Cherokee vehicles is responsible for controlling important functions like braking system and air conditioning system. It works through blowing air resulting into its high or partial vacuum which assist in emissions control and ac systems. Different vacuum pumps have been incorporated in the Jeep Grand Cherokee production over the years including, mechanical vacuum pump that is normally driven by the engine camshaft, and modern electric vacuum pump which does not use any energy from the engine. Mechanical vacuum pump is usually dipped in engine oil and is necessary in automobiles where the intake manifold cannot produce sufficient vacuum as found in such automobiles with turbo or direct injection engines. However, modern models may use electrical vacuum pumps for better performance as compared to the old models, be it a vacuum pump or some other component, a damaged pump is likely to affect the performance of the Jeep Grand Cherokee negatively, for example, causing poor fuel economy and poor braking, all of which gives an implication of the need to maintain it or replace it as when required.
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