left signal flashes fast

1998 GMC JIMMY
158,000 MILES • 4.3L • V6 • 2WD • AUTOMATIC
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ROYCAR71
  • MEMBER
  • 359 POSTS
I have recurring fast left signal. I have changed bulbs with 3157 on front and rear on left side.
May 29, 2017 at 9:25 PM
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HMAC300
  • CAR REPAIR CONTRIBUTOR
  • 48,601 POSTS
check for a bad ground on either front or rear lights. try rear first as it is on frame left hand side.
May 30, 2017 at 5:56 AM
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