I never figured out why my fan all of a sudden stopped working. I checked the fan motor, it's still good. My car's temp will start going up, and the fan won't kick in. Can anyone help me out? 92 Firebird 305 TBI. Thanx! I'm new at this!
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92 Firebird 305 TBI
K&N Open Air Element
K&N Crank Case Filter
Just a begginer, soon i will advance!

 

Maybe your coolant temperature sensor is bad. How did you test the motor to know it's good? Voltage diectly to it's wire harness? Also, maybe check the fusible link on the wire that is passenger-side going to the fan motor...

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Joel Geerling
Red 91 Formula, 305 TBI
Edelbrock 14x3 open element
TBI 1/2" spacer
Hypertech street chip
Crank/Alt Pulleys
*
Exhaust is next!

 

Out of curiosity, what is a crankcase filter??

 

About that crankcase filter, that's just fancy for the "K&N Breather".......it's just chromed out, looks nice!

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92 Firebird 305 TBI
K&N Open Air Element
K&N Crank Case Filter
Just a begginer, soon i will advance!

 

If the fan motor is good it sounds like the fan switch. The switch should be on the passenger side of the block.

 

CHECK SENSORS AND FAN SWITCH...

 

ok, i'm new at this. is the fan switch the relay? where is exactly located, and how do i know if it's gone bad? and about the censors, where are those? Please help. I hate not cruising around thinking that my car might heat up! Thanx!

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92 Firebird 305 TBI
K&N Open Air Element
K&N Crank Case Filter
Just a begginer, soon i will advance!

 

The fan switch is in the side of the block on the passenger side. If you unplug the wire and jump it to a ground and the fan turns on its the switch. ALl the switch does is ground out the fan when the engine gets to a certain temp.

 

Your fan aint startin'? Well she-it, thats not good, your motor must be gettin dat-gum hotter than a Sumbitch under that hood. You better fix that one. OOOOOOOOOHHHH YEAH BABY

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Yo MAMA!

 

If you have A/C turn it on while the car is running. The fan should immediately turn on. If it does, then your relay and fan motor are OK and the prob is your fan switch.

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92 Camaro RS, LO3, 5-spd, T-tops

Performance:
K&N Open Air Filter, Edelbrock performer TBI intake, Fastchip Prom, Timing +4 degrees, Centerforce clutch, Xact 8mm wires, SLP 1 3/4" Headers (coated), Flowmaster Catback Exhaust, Richmond 3:42 gears, Torsen HD Posi
Sights & Sounds:
Alpine 8030 Alarm System, Valentine One Radar Detector (How did I ever drive without one?), Pioneer DEH 7450 Head Unit w/6-pack CD changer, Pioneer DEQ 7600 Sound Processor, 2 Kenwood KAC-846 Amps powering 2 12" Pro Red subs, 2 Pioneer 6x9 and 2 MTX 4x6 speakers. Z28 grille w/aftermarket lights, MacEwen whiteface gauges
NEXT UP: TBI & Suspension mods

 

the fan switch on the pass side of the block is the liely cause. those things die eventually from the heat of the exhaust being so close. not a big deal, just unscrew the old one and replace it with a new one. i think they are like 15bucks.

later
tim

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91 Camaro RS-LO3,Auto
New Times Coming Soon!
Check Out The East Coast F-Body Nationals Home Page
www.geocities.com/njspeeder
My MAFB.ORG Home Page
www.mycar.net/mafb/registry/detail.cfm?id=299
DSI Racing Home Page
www.geocities.com/foff667

 

My fan did the same thing, first hot day of summer when i temp climbed over 240 near 260 i realized it was a bad thing. I paid someone to fix it because it was before i started learning about my car and all. It turns out it was the fan switch.. Simple way to check is to see if it turns on when you turn your ac on. If it goes on then, its your switch.

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1991 Firebird
-LO3 305 TBI
-5 speed
-Open Element Air Filter
-Edelbrock Tower Strut Brace
-Kenwood Excelon Headunit w/ 10 Disc Changer
-Alpine MRP-F256 Amp
-Polk EX 4x6's, DX 6x9's, and EX Tweeters
-Kicker ZR240 amp (bridged)
-Dual JL W0 12" Subs

-------------------------------
My wonderful page with pics, stuff, and my own car stereo tutorial..
http://members.aol.com/deadtrend1/index.html

 

Guys, thanx for the help! But everyone is stating that it's the fan switch only if the fan turns on when i turn on the ac. But the thing is that when i turn on the ac, the fan still doesn't turn on! Any more ideas, please post........thanx!

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92 Firebird 305 TBI
K&N Open Air Element
K&N Crank Case Filter
Just a begginer, soon i will advance!

 

First check the fuses. If you are ABSOLUTELY sure your fan motor is good then replace the relay. It is against the firewall on the drivers side. You should see to black box-like-thingys with wires going to them. Its the one with the green & white striped wire going to it (on the right as you face it). I can send a pic if you need one.

 

Funny. My fan didn't shut off last night and killed my battery, apparently. Soon thereafter I entered a mad rage. Then I got a jump from my other car and went to work.
:P

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1992 Camaro RS (Auto) 5.0L TBI
-
Performance mods
NOS (125 HP shot), Dynomax cat-back exhaust, Hedman headers, no cat, custom high beam delete ram air w/ K&N, MSD 6A ignition, MSD 8.5mm plug wires, LT1 camshaft
Soon to be installed:
Edelbrock Perfomer TBI intake, B & M 2200 RPM stall torque converter, Trans Go shift kit, World Products Torquer heads, Ed Wright Fast Chip

Audio
Sony Xplod CDX-M610 head unit, Pioneer 2-way 4x6 front speakers, Pioneer 3-way 6x9 rear speakers, 12 inch Pioneer VCCS PRO subwoofer, QLogic sealed box, Kicker ZR360 amplifier, Lightning Audio 1 farad capacitor

Other
Macewen White Faced Gauges/Shift overlay, A-pillar gauges (Phantom oil pressure, Air/Fuel), 180* thermostat, Window Tint, chrome valve covers, xenon headlights

 

Time for a new fan. Just the fan motor, not a whole setup. I had to replace my fan motor last year. The darn thing barely moved. I still made it to work and back 45min drive without the fan. The trick was to keep it moving 40mph or faster. In traffic I had to take a lot of back road shortcuts but I did it and the car never got over 210 , I'm just that good and yes, it was in 90+ degree weather with 90:10 percent water too coolant .
Simple way to tell if your fan motor is dead: Use a multimeter or test lamp and check to see if the wires going to the motor (there is a weather pack connector) have 12v when the a/c is turned on. If it does, you've pin pointed the problem. If it doesn't, then you'll probably need to rewire and chase a few wires. It's really a very simple circuit with short wires all exposed! Let us know if you need more help.