Question about 1996 Buick Riviera

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Ac blower my dash wont light up but the fan and the heat is still running...and i live in north carolina so u can imagine how hot it gets.... i have taken the fuse out but i would rather like to know how to fix it

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Try the climate control switch. unplug if and see if it stops

Posted on Sep 28, 2009

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1 Answer

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I had a 2003 caddy dts same issue the blower motor has probably gone bad u can order them online. What u can also try is kicking under the passenger side glove box area that's where the blower is located sometimes they get stuck. Try kicking or tapping under there and see if it pops on. I did this with my car

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after checking coolant level,thermostat operation and if heater hoses feel hot(be careful not to burn your hand) the temperature blend door is probably at fault. It directs the air from the fan blower motor either across your heater core or A/C evaporator, giving you either hot or cold air. Most cases the dash has to come out to replace this $80 electronic motor. Good luck, Mr.P

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My 2003 saab 93 arc ac isnt working properly whenever u turn off the car the blower fan wont shutoff ive checked the fuses and and relays under the hood and nothing? i had to pull the fuse out of the...


BLOWER MOTOR RELAY BAD MORE LIKELY.RELAY STUCK CLOSED.WHEN YOU TURN OFF CAR.THE BLOWER MOTOR RELAY CIRCUIT STAY HOT AT ALL TIMES.WHILE SOME OTHER CIRCUITS HOT IN CAR IGNITION SWITCH IN RUN POSITION.

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I turned on the ac and the light does not work, the vents are not blowing and the car is running hot. I have a saturn SL 1996


First check the 15 amp HVAC fuse located in the main fuse block inside the car on the passenger side of the center console, under a cover. If the fuse is good, then the problem may either be the HVAC blower switch (which is the fan blower selector switch), the fan blower motor resistor, or the fan blower motor. An auto repair manual will explain and illustrate for you the steps on how to check each of these components.

Even after pushing the ac light switch on, the fan blower selector switch has to be turned on as well (working) because it provides an electrical path to the positive side of the battery to complete the circuit and turn the ac light on. What the ac light switch does is provide the electrical path for the ac compressor clutch to come on through the ac control relay which is controlled by the car's PCM(computer) when you want ac, but the ac light switch still needs to run through the fan blower selector switch to receive its power. You can turn on the fan without the ac light switch because it gets its ground path(negative) from the blower motor. So the blower motor has to work in order to provide a ground path for the fan blower selector switch to be functional. You could have a faulty blower motor which is why no air blows through the vents. The fan blower motor is located inside the car on the passenger side underneath the dash at the bottom end of the glove compartment box. You'll see it. It's right above where a person rests their feet on the floor. Therefore, if your 15 amp HVAC fuse is good, check to see if you have voltage at the blower motor connector. Unclip the connector and with the ignition on and the fan blower switch moved to any one of the first 3 selections, check for voltage using a multimeter. The voltage will vary because there is a blower motor resistor. Voltage should be higher on setting 3 than 1. If you do have voltage at the blower motor connector, check for a faulty blower motor. The auto repair manual will tell you how to do it using jumper wires.

It's normal that your car is running hot because the radiator fan works in conjunction with your ac compressor. If the ac is on, the radiator fan will be on and therefore the engine coolant temperature will stay in it's normal operating range. If the ac is off, the radiator fan will stay off as well and the engine coolant temperature gauge will begin to rise and show pretty hot (especially at idle). It will do this up until a certain degree then the radiator fan should turn on thermostatically and stabilize the temperature. It's scary and I know what your saying because it does that to my car if my ac isn't on. Don't worry it won't overheat.

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Follow the wires from the blower motor back to the blower motor resistor, normally only a few inches away and held in by a 7 mm screw. Replace it

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check to see if there is a resistor on the blower motor. it should be located either beside or underneath the blower motor.. if that is bad it wont let you select different fan speed settings and if it goes completely out the blower will not work at all.

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After talking to a local mechanic, he suggested tapping on the blower motor. I tried that, and the blower motor did work. At first he thought it was the blower control module. I had the blower motor replaced, and all is fine now.

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clogged heater core ? low coolant level ? If the heater hoses are hot to the heater core in the engine compartment and your not getting any heat it may be a blend door motor that will not move to the hot position , it could also be the temperature control head in the dash , some earlier chryslers had problems with heater/ac controls

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