I did some brake caliper cleaning the other day and when I went to make sure everything was in order I noticed that when I pumped the brakes my idle would drop from 750RPM to 400-500 RPM. What would cause this and how can it be fixed. At the time I had trans in neutral(manual). Also, want to replace engine coolant temp. sensor, how much PITA is it to remove intake manifold? The bolts on the manifold are pretty well aged, where they may not come off. Any advice appreciated.
Thanks for any help.
Rob Mac
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