I have a 2001 bug, i have a lot of systems that are geing no power. my head lights, turn singals, wipers, heater/air. but my tail lights work and my haz work too, also my brights work if i flash them, if i turn them on they dont work. i checked all my fuse on the dash in the driver door and im getting no power to the systems that arent working.
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If your var has 55 fitted as standard then it is very possible that you have a fuse problem. In a lot of vehicles to run such high wattage bulbs create a lot of heat and as some refelectors are covered plastic they tend to melt. If how ever you have good refelectors and still wish to run 100 the I suggest you put a relay in the system and take the load off the circuit. Use the exexting head light wire to activate the relay and run directly from the battery( use a fuse in this wire)
Fortunately your 1991 Buick is pre-steering wheel airbag...you will need to remove the steering wheel to gain full access to the "smart stick" Not to difficult with the correct puller...on loan from most parts stores...Hope this helps.
3 THINGS WILL CAUSE CAR TO SHUT OFF ON HIGH WAY.LIKE ALTERNATOR - FUEL PUMP - SPARK IGNITION COIL OR MODULE.FIRST OF ALL IF YOU HAVE DASH LIGHTS AND HEAD LIGHTS.ALTERNATOR OKAY YOU GETTING POWER.LISTEN FOR FUEL PUMP TURN ON IGNITION SWITCH ENGINE OFF LISTEN TO HEAR FUEL PUMP RUNNING IN GAS TANK.IF YOU HEAR NO PUMP RUNNING IN GAS TANK.CHECK FUEL PUMP FUSE AND RELAY.BOTH CHECKED OUT GOOD MORE LIKELY FUEL PUMP AT FAULT.IF FUEL PUMP RUNNING CHECK FOR SPARK AT PLUGS.IF NO SPARK.CHECK IGNITION FUSE.IF FUSE GOOD YOU COULD HAVE PROBLEMS IN THE PCM SINCE IT CONTROLS SPARK IGNITION SYSTEM.
In a lot of cars, the turn signal relay (which also operates the hazard lights) is built into the hazard light switch. If the fuses are all good, I'd look at getting another hazard light switch and replacing it. They're only a couple bucks at a salvage yard, so I'd go to one and pull a couple out (just in case one of them is bad) and swap it in.