Headlight Problems

[Justin Fleming]

When I turn on the headlights low beams both sides work well. when I go to high beam both light work on the driver side only and neither of the lights work on the passanger side???

 

[dremu]

When I turn on the headlights low beams both sides work well. when I go to high beam both light work on the driver side only and neither of the lights work on the passanger side???

Any time I hear this kind of thing, my first reaction is "grounds."

Go check that the ground on both sides actually connects to the body; also check that the connectors for the bulbs are clean and not corroded. I had to replace a socket on my '85 'cuz the wiper was freakin blue from crap

-- A

 

[Justin Fleming]

Any time I hear this kind of thing, my first reaction is "grounds."

Go check that the ground on both sides actually connects to the body; also check that the connectors for the bulbs are clean and not corroded. I had to replace a socket on my '85 'cuz the wiper was freakin blue from crap

-- A

I wouldnt think that it would be a ground issue if the lights on that side work while the low beams are on??

 

[Kiwi John]

First: Swap the bulbs from right to left and see if the problem is the same. That proves the bulbs.
Then check fuses. Are the L & R Hi beams on seperate fuses?

Then do what dremu said. dodgy earth connections cause all sorts of wierd effects.

then, if problem is still there, you will have to start tracing wiring to relays switches etc.

 

[Justin Fleming]

Does anyone have a diagram that they could attach of the lighting circuit for an 86 k5 blazer

thanks

 

[BrianDamage]

First: Swap the bulbs from right to left and see if the problem is the same. That proves the bulbs.
Then check fuses. Are the L & R Hi beams on seperate fuses?

QUOTE]


yep, either that or check with a meter


How are the headlights made ? Is it possible for the high beams to be out while the low beams still work? I've had this happen on an older car I had, but not sure if K5 lights are the same.