Given your dandy description of the symptoms, a good suspect is the rear rubber flex hose on the side that's locking up. At the same time, you should notice the brake pedal is higher and harder to push than normal.
This photo shows the left rear hose for your model. My red arrow is pointing to a mounting bracket that's crimped around the hose. Over time, rust builds up inside that crimp and constricts the hose. You can still force brake fluid under pressure through the restriction, but it becomes trapped and can't return to the reservoir. That brake drags a little resulting in heat build-up. That heat migrates into the brake fluid causing it to expand and apply that brake even harder. When you park the car, the brake fluid has time to cool down and slowly seep through the restriction to release that brake.
The best way to verify this is to stop on a slight incline, place a block about a foot downhill of a tire so you don't have to chase after the car, leave it in "neutral, then crawl underneath and open the bleeder screw.
A dragging brake can also be caused by brake fluid contaminated with a petroleum product, but the symptoms would typically be more severe. In that case the brakes will usually release when you loosen the steel lines coming out of the master cylinder. You'll also find the rubber bladder seal under the reservoir cap is blown up and mushy, and you can't pop it back in place.
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Sunday, January 3rd, 2021 AT 2:00 PM
