1988 chevy flashers come on when right blinker

spitz · Nov 10, 2016

Hey guys having trouble finding whats up with a 1988 silverado. When I put the right blinker on all the 4 ways come on. The other lights are working fine- left blinker, tail lights, and brake lights. Any ideas?

DeltaRed · Nov 10, 2016

Had a similar problems before. The turn signal switch is bad.Pull the steering wheel.Might be fixable,but replacement of the switch will probably be needed.

old · Nov 10, 2016

As Delta say good chance the turn signal switch is bad but some times you can fool it by pulling the hazard flasher out if is not the same one as the turn signals. Don't know if it has one or 2 flashers I know my 1980 has two and I have done that at onetime to it

donjr · Nov 10, 2016

Had a problem like that once, and it turned out to be a rusty ground on the bed to the frame. Drove me about half crazy trying to find it.....

Bob · Nov 10, 2016

Before tearing into the steering column, make sure the dim and bright lamp filaments on the RH side are not shorted together, and check that the RH lamps are properly grounded, especially the rear one, which includes the possibility of the printed circuit board at the RH tailite having failed in the bulb ground circuit area.

MARK ROBKE · Nov 10, 2016

Along with what Bob said,does it have a trailer plug? If so,it may have wires crossed inside it.If not,I would first lean towards a bad ground at the rear lamp assembly.Mark

GVSII · Nov 10, 2016

Ran into a very similar situation twice.Bad ground each time.No guarantee though!

1988 chevy flashers come on when right blinker

spitz

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DeltaRed

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old

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donjr

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Bob

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MARK ROBKE

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GVSII

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