So I'm an electrician by trade..my problem starts when I change my brake booster. I bleed everything nice nice reconnect all... and then incant get the brale lights to go off??? I disconnect the brake switch on the pedal nothing,still on. I check and make sure I didnt pinch anything but there is not...

There should be 6 coil packs,very top of the engine. Or ignition coils they call them. Unplug the harness on each one one by one. If it sounds like its misfiring more,that coil is good. If you unplug one and it sounds the same it's that coil. Or do your sparkplugs or wires.... only 3 things make an ...

If you wikipedia Volvo 900 series. The 960 in late 97 was renamed v90 and a.s90 two diffrent cars prob almost exactly the same. Left trunk is your light bulb sensor. It's a blue box. You have.to pull up the carpet and the almost all the fabric stuff. I would start there because that is where all you...

Try your hazards/emergency lights. Does that work when headlights on?