Bad vacuum amplifier 85 300TDT???
I'm getting around 12" entering my blue vac amplifier on my 85 300TDT, only getting under 5" to my trans. When its cold the needle on my mityvac doesn't move when I increase throttle. Could a bad vac. amplifier be my problem? Has anyone heard of them going bad. I understand they are only on 85 and above model. Thanks PS I'm getting a reading of 20" off of the main line. This problem only occurs when theoutside temps go below freezing. ????
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85 300TDT 456,000 orig.  miles
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