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Check fuses first. Then relays. Then try appling power to the fan directly to see if there are wiring problems. If the fan runs and the fuses and relays are fine look to the switch.
Good Luck!!!!!
cooling fan relay could be bad,check relay by making a fuse jumper wire.look at the relay control circuits on relay look for control circuits terminal number 85 and terminal 86 hook fuse jumper wire terminal 85 on relay to good ground and take terminal 86 on relay hook up a jumper wire touch battery positive terminal relay should click if not, relay bad.
For this 1998 chevy cavaleir , the heater blower relay is located in the engine compartment inside the fuse/relay compartment, this box is located on the driverside near fender, i will enclose a picture of its location and also the location of each relay and fuse, you will see the heater relay. good day. hope this helps you.
Hi!!
Look in engine compartment close to battery for fuse box, remove cover and inside cover there is a diagram of fuse/relay locations.
You are looking for a fuse and relay, it should say blower fan or AC blower fan. First check fuse, if Fuse is ok. check Relay.
Good Luck!! Don't forget to rate this post!!
Sounds like the fan control knob has shorted out. You can check the fan "blower" relay and fuse in the engine compartment but you need to make sure the control knob is good or you will keep blowing fuses and relays. If your blower fuse and relay are good, then just have the control knob checked and replaced if needed.
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