I have a 2006 Toyota 4Runner and my wife has a 2008. Her blower fan, when it is on high, almost blows you out of the seat while mine doesn't. I can tell that I have 4 distinct speeds but they all seem less than what hers are. Is there a problem or is it just the difference in the 2 model years? What should I be looking for if mine is having a problem?
It's probably just in the design between the two year models, check the cabin air filter behind the glove box these sometimes get clogged up and reduce fan air volume.
SOURCE: Camry 1991 4 cyl.LE.Blower fan in dashboard stopped working
heater fan speed switch located in heater box by passengers feet up in heater box one plug on it cant miss two screws hold it in!!!!
SOURCE: 97 4runner blower motor needs replaced. Do you
Hi. The removal is really easy; unplug the motor under the glovebox, and remove the 3 screws that holds the assembly in. You can have it out in 10 minutes.
SOURCE: blower motor resistor
Two bolts a little neck twisting 5 mins...
Look under the dash follow the wiring from the blower any two of them will lead you to the resistor. It's in the air box about.
SOURCE: I have 91 Toyota camry & just recently my fan
No.
Probably not. If it runs on high, it is probably good.
Unless is sounds slow or 'tight' on high, or squeaks or chips , etc. Run the fan with the engine off and then shut the fan off and listen and see if you can hear how long it takes to slow down. If it stops in just a second or two, the bearings are tight (dry). If it spins down normally, maybe three to eight seconds or more, the motor is fine. You really don't need this check.
It is most likely your blower relay.
Most cars have one or two relays to control the fan motor, which is a single speed motor that the relays and speed switch and blower resistor control the power to.
One relay is for high speed, also switch contact.
One relay is for other speeds and divert current through a blower resistor located by the fan duct under the dash or under the hiid by the fan.
Also the switch contacts for each speed.
It cad be the dash switch, which has to handle the blower resistor current for all the lower speeds is burned out at those speeds.
It can be the low speed blower relay, as I mention above, is burned out, this is most frequent cause.
it can be the blower resistor is burned out, this can give no low speeds, or loose speeds below a certain speed setting.
Try you manual for the blower relays' positions. Try swapping with the horn relay to test if it is the same type of relay.
Take out the blower resistor carefully (pretend you are defusing a bomb or playing "operation" game as it has exposed coils that are delicate and if you bump the sides of the opening as you extract it you will damage it and short the coils against each other). the wire coils are very fine bare wire coils that look like springs and if touching can burn out.
Switch is harder to test because hard to get at, check the other things first.
You should be able to test for voltages at the resistor plug to see if power is coming from the switch, but wiring schemes can vary.
Post back or use shop manual to troubleshoot the switch.
SOURCE: 2006 Tacoma fan blower only
the blower resistor is bad. find the blower motor and follow the wires to the resistor, its bolted to the air box.
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