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HDGENE
HDGENE, ASE Master Tech
Category: Chevy
Satisfied Customers: 4784
Experience:  25 years Auto experience, Ford, GM, Chrysler, Asian & European
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Turn signal prpblem. 2000 s 10 chevy pu 4.3 v6 2wd. lfet

Customer Question

turn signal prpblem. 2000 s 10 chevy pu 4.3 v6 2wd. lfet signal blinks double time. rear bake up light on right side blinks with left side turn signal. left brake light dims when brakes applied. left turn sign works fine if parking brake aplied before turning it on
Submitted: 1 year ago.
Category: Chevy
Expert:  HDGENE replied 1 year ago.

Hello, does this pickup truck have an aftermarket trailer wiring harness installed into the tail lights of the truck?

Customer: replied 1 year ago.
No
Expert:  HDGENE replied 1 year ago.

Ok for it to cross circuits and do odd stuff its usually either an issue with an add on trailer wiring system which you said it doesnt have, An issue with the bulb connectors in the lamps front or rear corrosion, a loose ground or problem with a printed circuit board in the rear tail lamps if this model year uses them or problem with the multi function switch/turn signal. Inspect the lamp sockets for water intrusion and wiggle the turn signal stalk and see if the lights start working properly to start.

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