How do i take my radiator fan off of my 87 iroc-z

Question edited for clarity.
Question moved to model category.

Help here. The Camaro forums are a great resource.

https://www.google.com/search?q=1987+Chevrolet+Camaro+IROC-Z.+Wiring+diagram

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The rotary control switch on the dash controls the blower motor for the A/C. The A/C will not turn on unless the blower motor is functioning properly. The passenger-side radiator fan will not turn on until the A/C begins running. BUT the driver's side radiator fan should always work. Ergo, check the function of the blower motor (located underneath the dash behind the glove box). Usually when it goes bad, it's because of the blower motor RESISTOR (mounted inside the blower motor housing). When the resistor goes bad, the blower motor shorts out, causing it to fail. The switch rarely ever fails. The radiator fan relays are located next to & on both ends of the radiator. Check them too. In the link, the blower motor RESISTOR is #5.
Acura Parts AcuraOEMparts com Genuine Acura OEM Parts from Delray Acura

Well, yes and no.
Yes the relay or the computer could be faulty.
But the computer is not going to ground the relay until the engine temp reaches about 225 degrees.
Since the thermostat opens at 195 degrees running at 200 is normal.

Its either t

• HOME
• REPAIR HELP
• PRODUCT AND HOW TO INFO
• C
• COOLING FAN SWITCH
• TEST

Cooling Fan Switch ABCDEFGHIJKLMNOPQRSTUVWXYZ Inspect/Test/Replace

To find the RADIATOR COOLING FAN MOTOR RELAY, we need additional information about your 1995 Oldsmobile Aurora 4.0L SFI DOHC 8cyl.
Please select one of the following:

• Number one
• Number three
• Number two

The Radiator Cooling Fan Motor Relay is located: Under hood, passenger side, upper firewall, mounted in corner in relay block
When testing a cooling fan switch, first test it with the engine cold, then test it when the engine reaches a specified temperature. Check your vehicle's service manual for more directions.
To check a switch, disconnect the connector at the switch. with an ohmmeter, check for continuity between the terminals of the switch with the switch moved to the on position and to the off position.

To find the RADIATOR COOLING FAN MOTOR RELAY, we need additional information about your 1995 Oldsmobile Aurora 4.0L SFI DOHC 8cyl.
Please select one of the following:

• Number one
• Number three
• Number two

The Radiator Cooling Fan Motor Relay is located: Under hood, passenger side, front side of wheelwell, mounted in relay panel
The continuity through a switch can be checked with an ohmmeter. With the switch open, there should be infinite resistance. With the switch closed, there should be zero resistance. With the switch off, there should be no continuity between the terminals. With the switch on, there should be good continuity between the terminals. If the switch is activated by something mechanical and doesn't complete the circuit when it should, check the adjustment of the switch. (Some switches are not adjustable.) If the adjustment is correct, replace the switch. Another way to check a switch is to simply bypass it with a jumper wire. If the component works when the switch is jumped, a bad switch is indicated.
Voltage drop across switches should also be checked. Ideally, when the switch is closed there should be no voltage drop. Any voltage drop indicates resistance and the switch should be replaced.
he fan motor,the fan switch,or the coolant temp.sensor.

ITHINK THERE ARE SOME RELAYS ON THE PASSENGER SIDE IN A BOX...WHAT I DID TO SOLVE THIS PROBLEM WAS TO GET A METAL FAN OFF OF A V8 DAKOTA 4.7 I THINK AND JUST SCREWED IT ON TO THE TREADS OF THE WATERPUMP ...ASSUMING YOU HAVE A 4.0 LITER ENGINE.THEN I FOUND THE RELAYS AND JUST TOOK THEM OUT...ITS A TIGHT SWEEZE AND A LITTLE PAIN TO SCREW IT ON BUT IT WILL WORK.YOU COULD HAVE A BAD FAN MOTOR OR TEMP SWITCH THATS BAD.

i am familiar with the car and the problem . the best thing to do is go to the local parts store and ask for an adjustable thermostat fan switch its about 40 dollars you wire it to the battery the fan and a ground mount it near the battery start the car and adjust the knob to the desired fan turn on temp . to fix the setup you have there is a fan turn on temp switch on the passenger side head toward the rear should have one wire on it that grounds the relay on the radiator support . 87 should have one fan one relay sometimes the relay burns and melts the plug you have to buy a replacement plug from a parts store along with a relay so to test it ground the sensor wire with the key on and fan should turn on if it does that's the problem you could also buy a low temp one from summit racing.com the fan will turn on sooner if it still wont turn on the relay is the next culprit check if you have power and a ground with key on at relay plug if you do the relay is bad change it . hope this helps

There are 3 possible things;
The fan motor itself
The coolant temperature switch, which operates the fans, usually screwed into the engine block near the thermostat housing. Have to drian radiator to change it.
The relay-- It's a small black square shaped object, some are located in the fuse box in the engine compartment, and some are mounted on a bracket on the firewall, passenger side.
Could be in the wiring that connects these components.
To check the fan motor----- disconnect the wire plug from the fan motor, use jumper wires directly from the battery to the connector on the fan, If the fan works, then either the temp switch is bad, the relay, or the wiring.If the doesn't work, that is bad and needs to be replaced.

Fuel pressure? Do you hear the fuel pump running? Read the codes to see if ECM is still alive. Do you have spark at the plugs? Remember all motors need 3 things to run air, fuel, and fire at the right time.

I found that for some reason if you start your car and then remove and reinstall the hi and low relays that the fans work. I have done this numerous times on my 1995 lhs. I thought that my fans were defective until by chance checked the relays which engine was running.

One fan is for when the vehicle gets hot , the other for when you are running the ac. I am more concerned with your drivability problem when it gets hot and the reason it gets hot. one fan not running won't cause this. Due to the fact that it is backfireing and your speed is reduced, I wouild be looking at a possible pluged cat.