answersLogoWhite

0


Best Answer
Copy

On mine, it's the fourth relay from the inside out. In case they are in a different order, it should be the relay with two large wires and two small wires coming into it. One of the large wires is power and the other goes to the fan. One of the big wires should be purple with a black stripe. Spray WD-40 into the socket before plugging back in. This has been a BIG problem spot for GM. The wiring, not the relay, is what causes the problem. the contacts get hot and lose contact, then get hotter and quit working completely. I your connector looks burned, it may still work if you use the WD-40. The relay may still be good, too. This cost GM a lot of head gasket repairs due to stupid engineering and overheating. Typical GM.

User Avatar

Wiki User

โˆ™ 2007-04-27 14:35:40
This answer is:
๐Ÿ™
0
๐Ÿคจ
0
๐Ÿ˜ฎ
0
๐Ÿ˜‚
0
User Avatar

Add your answer:

Earn +5 pts
Q: Which relay switch is the coolant fan plugged into on a 1990 Buick Century 6 cylinder?
Write your answer...
Submit

Related Questions

Why does my 02 impala not have heat when engine is hot?

Low coolant? Bad thermostat? Heater core air bound, restricted, or plugged? Water pump not circulating coolant? Temperature control switch not working?


What can be the cause of a 96 Dodge Intrepid to run hot?

No/low coolant, bad thermostat, dirty/plugged radiator (inside and/or outside of it), air pocket in coolant, electric fan relay, temp switch for fans, bad fans.


Your coolant light of your 97 sunfire 2.2 came on and it is full with radiator fluid what else can this be the light wont go off?

There is a sensor that is in the overflow bottle that may be bad causing the "low coolant light" to illuminate. The coolant level switch is located on the bottom side of the coolant tank. The switch contains a reed switch and a magnetic float. When the coolant level is normal, the float rests away from the reed switch, causing the switch to be open. When the coolant level decreases in the coolant recovery tank below a specified level, the float rests on the reed switch and the switch closes, illuminating the LOW COOLANT light. The coolant level switch is a part of the coolant tank. If the switch needs to be replaced, the coolant tank must be replaced.


Where is coolant temp switch on 1990 camaro 305 tbi?

It is located on the left side of the engine between the 6th and 8th cylinder on the block.


Where is the coolant temp switch locater on 2003 trail blazer?

It is on the driver side head, back by the last spark plug #5 cylinder.


Where is the low coolant switch located on 2002 Buick Century?

The switch is just across from the battery located in the rad reservor, to remove it and clean the sensor probe, you have to remove the battery.


Why computers don't want to switch on?

Not plugged in.


Does leaving the switch on to a switched outlet use electricity if nothing is plugged into the outlet?

No, if nothing is plugged in pulling current then you are using no electricity by leaving the switch in the on position.


No heat in 1990 Chevy Camaro?

Low coolant? Thermostat not closing allowing engine temperature to rise? Plugged heater core? Air bound heater core? Water pump not circulating coolant? Heater control cable not adjusted properly? Bad selector switch?


How do you fix the heat a 99 Chevy Silverado?

Check coolant level Test and/or replace thermostat Make sure heater core is not plugged restricted, or air bound Make sure coolant is being circulated by water pump Check heater control switch and /or cable


What causes both rear brakes to hang up?

brake switch out of adjustment, master cylinder comp port plugged, rear brake hose collaspsed or ebrake cables seized


Where is radiator cooling fan switch located on pt cruiser?

The computer uses the coolant temperature sensor to decide when to run the fans. It is below the radiator cap on the cylinder head.


How do you change the key cylinder of the ignition switch in a 1991 acura legend?

Remove the retaining ring at the top of your 1991 Acura Legend ignition switch. The ignition switch cylinder will slide out. Remove the wiring harness from the end of the ignition cylinder. Reverse the process to install your new ignition switch cylinder.


Where is the coolant temperature switch on a Ford Focus zetec engine?

There is no such thing as a: temperature switch, on your Ford focus, the coolant temperature sensor is located on the front of the engine.


What causes cooling fans not working on 1995 Chevy Caprice?

radiator coolant switch, pcm coolant switch, relay , pcm , related circuitry or fuse.


1995 40 6 cylinder-What's the name of the coolant system part between the radiator and heater; Coolant passes through two ports in it and it has a vacuum-activated switch?

its called your heater core No it is called your heater control valve


Why does the heat blow hot in front and cold in back as there is no temperature switch for hot or cold in 1999 Town and Country LX?

Could be,low on coolant, add coolant and look for leak, plugged up rear heater core, try flushing heater cores, stuck open thermostat, replace stat,


What components measures the temperature of the coolant and turns the radiator fan on and off to keep the coolant at a certain set temperature?

the coolant temperature switch


Where is location of fssw on a 2001 escape 4-cylinder?

where is the location of the fuel selector switch on a 2110 4 cylinder ford escape? or fuel selector switch circuit.


Where is the coolant temperature switch located on a 1999 Pontiac Montana or is it replaced by the coolant temperature sensor?


Where is the temp sending switch located on 2000 sarturn sl 4-cylinder?

Called an Engine Coolant Temperature Sensor, Located on drivers side of engine under the EGR with a 2-wire connector. 13mm deep dish socket is needed for removal


Replace ignition switch for 1993 Buick century?

Replace ignition switch for 1993 buick century?


Where is the backup light switch on a 2001 Buick century?

Where is the backup light switch on a 2002 buick century?


What is unidirectional current controller device?

A unidirectional current controller device is a type of electrical on/off switch. In order for an item to work that is plugged into a particular outlet, the switch must be in the on position. It is like having lamps plugged into outlets that are controlled by only one switch.


How do you replace an ignition switch on an 1989 camaro?

switch itself or key cylinder?