1997 Buick Regal GS 3.4" Pulley on Blower.
EVAP system DTC 1441. This is purge when not selected to purge. Trying to determine if it is normally closed vacuum switch or purge solenoid. Have checked all hoses and cannister and they look ok.
On my 4th set of front rotors. They last until the first time I have to throw out the anchors then they warp. Replace them and the pulsation disappears for a short time. Any ideas???? appreciated. Also seems worse when temperature higher. First stop in morning doesn't pulse much.
Thanks for any suggestions.

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