1990 Lexus LS 400 Front Brakes engage while driving

Tiny
SHAWNWO
  • MEMBER
  • 1990 LEXUS LS 400
  • V8
  • FWD
  • AUTOMATIC
  • 150,000 MILES
Last couple of days I felt a shimmy in the front, then today felt like a drag on the vehicle. The front brakes engaged and did not release, both sides were smoking hot, I let it cool and did not have the problem the rest of the ride, but it was not the first time during these last few days. What should I check?
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Saturday, October 25th, 2008 AT 5:12 AM

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Tiny
MASTERTECHTIM
  • MECHANIC
  • 4,749 POSTS
With both fronts locking up I would not suspect caliper or brake hose problems, I would look closely at the brake pedal under the dash to make sure the brake light switch is not holding the brake pedal down a little. You can try pulling on the brake pedal and see if you hear a couple clicks, that would be the brake switch adjusting. Also look under dash and see if maybe a alarm module or some wiring is caught behind brake pedal where the brake light switch is. Hope this helps
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Saturday, October 25th, 2008 AT 5:29 AM

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