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1991 500SL
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Discussion Starter #1
before i pull the cruise control amp...the other areas that could cause it to fail is vacuum, and an actuator...where is the vacuum line i should check...both under the dash and motor compartment? i will trace to see if that is the problem before ipull the amp...regarding the actuator...is there a way externally to determine if it is functioning properly? thanks...only want to go in there once..from what i have read..pulling the amp is quite the process.
 
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