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Jeep Cherokee

Where is the vacuum supply for the climate control on a 1989 Jeep Cherokee 4.0 liter?


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2004-11-18 11:11:55
2004-11-18 11:11:55

It begins at the intake manifold.

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There is a vacuum problem to the internal vent control assembly. Either a vacuum leak, missing hose, or blocked vacuum port is not allowing vacuum to reach the ports of the door controls that direct air flow inside the HVAC box under the dash. Check for vacuum at the control assembly, and then that the assembly is porting the vacuum to the control pods.

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I am not sure what you mean by reconfigured. If the cruise is not working the first things to check are the vacuum supply to the servo and to check the pcm for trouble codes.

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It all depend if it is vacuum operated or electrical. If it is vacuum check the vacuum line attached to the intake manifold, it might have come loose. If its electrical check the heater control panel.


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