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Having a little problem with electrics. If you can see it, the passenger high beam glows a little on low beam setting. I then switch to high beam, whole passenger side is lit while the driver side high beam never comes on and the headlight glows very dim. I've replaced all bulbs, replaced the step relay, and sprayed maf cleaner on the terminals (it was on hand). I'm just wondering now what wire(s) I should be replacing.
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>>14694884
High beam setting
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Pre-'87 Volvo 240s are known for having biodegradable wiring insulation, plus the car is just old. Check the condition of the wires for the headlights, and check all grounds for corrosion. If you find any corroded up ground points, unscrew them, clean the terminals and ground point with steel wool, and apply dielectric grease to the terminals and ground point before reconnecting.
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>>14695296
I checked, wires look ok from the outer sheath, the connectors look a little stained and green looking, would I have to strip an remake a connector or would just cleaning the connectors work enough?
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>>14695349
Cleaning the grounds and connectors should be enough. That kind of problem is usually a short somewhere in the wiring harness or a bad ground causing current to go where it shouldn't.
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in these cars all 12 volts also run through the actual light switch knob in the dash, so inspect and clean the knob too.
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>>14695657
New knob, taken care of.
This problem happened after the huge amount of rain we got around last year.
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>electrical gremlins in a volvo 240
Burn everything and start over.
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