Question about 1994 Pontiac Grand Prix

3 Answers

Coolig fans dont run

I cant get the two cooling fans to run. The fuses checked good. The one motor winding checked good. Ionly get 8to 9 volts at the connector

Posted by on

  • Frankie Z Sep 28, 2008

    yates210456



    thanks for the help! Do you know where the switch is?

  • arguiba Sep 29, 2008

    fff

×

3 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 1,263 Answers

The cooling fans are run by a relay it's located in the junction box. check this. there is also a thermoatic sensor located near the fans next to radiator. the fans should free spin when the engine is off this is a good indiacator that it's not the fan themselves. if the relay checks out(run engine and switch the fan relay with the a/c clutch relay when the engine reaches 180 degrees you will feel the upper radiator hose get hot the fans will turn on a short time later iof they don't it's the temp sensor near the radiator if they do it's a bad relay...please rate this thanks

Posted on Sep 28, 2008

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that has over 10 points.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 10 Answers

Turn on ac fan should come on if so replace coolant tempature sensor. Once coolant reaches operating tempature PCM uses resistance siginal from senor for coolant tempater and then sends voltage to fan relay

Posted on Nov 26, 2013

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Sergeant:

    An expert that has over 500 points.

  • Expert
  • 350 Answers

If the you checked the wiring at the fan and it is 12v and the fan motor is ok it will work unless you have a bad ground and you will proberly find that one motor will kick in first then at a certain temp the other will kick in they both don,t come on together unless the temp is at a certain degrees normally when the fans don,t work its down to fuses or the temp switch which operates the fans which can be tested by by-passing the switch or which is more likely the fans relay as the points burn out yates210456

Posted on Sep 28, 2008

  • paul yates Sep 29, 2008

    unfortunatly no they keep moving them round but i would suggest looking on the radiator itself to see if you see a switch or they can be located on the cylinder head sorry can,t be more helpfull let me know how you get on yates210456

×

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

The engine Temp gauge got real close to "H"but went down soon as i got rolling.Also engine cooling fans not coming on. even when i engaged AC. the fans are electric. . .?


The reason that you drive and engine cools down is that cool wind is blowing in the grille in front of the car and when you stop, that natural wind stops cooling it down.
First check the fan fuse. If it is OK check the fan itself: just apply wires on the connector of the fan and attache it to the battery (dont mix "+" and "-") If fan will not start, replace the fan motor. If it starts check for the Fan Motor Relay
25927494-gl0xs2s0pqcfqvyesya4nbi0-1-0.jpg

Oct 27, 2015 | 2008 Ford Escape

1 Answer

My cadi 1988 is running ruff and quit running feels like over heating but no leaks, just smells


REPLACE THERMOSTAT AND RADIATOR PRESSURE CAP.MAKE SURE COOLANT NOT LOW.IF ALL IS GOOD CHECK FOR LEAKING WATER PUMP WEEP HOLE IF LEAKING REPLACE WATER PUMP.MAKE SURE COOLING FANS RUNNING.IF ENGINE RUNNING HOT WHILE SITTING LONG TRAFFIC LINE AND COOLANT NOT RUNNING.CHECK COOLANT FAN RELAYS AND FUSE.IF ALL IS GOOD HOT WIRE MAKE SURE COOLING FAN MOTOR GOOD IF COOLING FAN DONT RUN WHEN HOT WIRED FAN MOTOR BAD.IF FAN MOTOR OKAY AND FUSE RELAYS GOOD YOU HAVE FAULTY COOLING FAN WIRING.YOU COULD HAVE BAD ENGINE COOLANT SENSOR OR FAULT IN ECM CODE SCAN TO CHECK THEM BOTH.CHECK ENGINE OIL.LOOK LIKE MILK SHAKE YOU HAVE LEAKING HEAD GASKET.IF OIL LOOKS OKAY.YOUR ENGINE BLOCK, RADIATOR AND HEATER CORE NEED FLUSHING.

Sep 20, 2011 | 1988 Cadillac Sedan DeVille

1 Answer

Cooling fan not running as temp. heats up.


most time coolant temperature sensor faulty.but check cooling fan fuse and relay.then hot wire the cooling fan if fan runs.problem in the fan wiring or pcm.if every thing else okay.if cooling fan dont run when hot wired the cooling fan need replacing fan motor has internal open winding circuit.

Apr 15, 2011 | 1995 Buick Skylark

1 Answer

How do i check the cooling fan my car is over heating


HOT WIRE COOLING FAN USING JUMPER WIRES TO BATTERY.IF FAN DONT RUN WHEN HOT WIRED FAN MOTOR BAD NEED REPLACING. IF FAN RUN WHEN HOT WIRED. CHECK COOLING FAN FUSE AND RELAY.IF ALL IS GOOD.YOUR ENGINE COOLANT TEMPERATURE SENSOR NOT WORKING.IT CONTROL COOLING FAN AT SET TEMPERATURE IF SENSOR OPEN OR FAULTY THE COOLING FAN WONT TURN ON.CHECK COOLING FAN WIRES FOR DAMAGE.IF ALL STILL CHECK OUT GOOD HAVE VECHICLE SCANNED FOR PCM FAULT.IF IT FAILS NO COOLING FAN WONT TURN ON.

Dec 13, 2010 | Hyundai Elantra Cars & Trucks

1 Answer

I have a 1995 Pontiac Bonneville. I replaced the radiator and now my fan dont work. Is it a easy fix?


It depends there are a few resons why the fan may not be workin. The first and easiest is the fuse see if it is blown if it is try to replace it if it blows again either you have fauylty wiring or you fan is pulling to many amps. you can check to be sure there is nothing jamming it up turn it by hand be sure it will spin freely. If your fuse is goood you need to check to see if it is getting power find where it plugs up. unplug take a voltage meter you should be getting twelve volts to it. If you are getting the twelve volts you can check to see if the fan motor is bad one check for this is too check the resistance across the moror windings this can be checked with a ohm meter if you put the meter leads on the two wires goin to the fan motor you should get a resistance this could vary with different types of motors but on most should be low 2 ohms or less (this is a normal winding resistance not exactly what yours may be tho). most of the time when one of these motors goes bad the windings actually burn open. So if your meter is reading open or infinate or a high resistance this means your motor is bad and need to be replaced. ths is just a few checks to do if you perform these and are still not sure what to do just come back and comment me with your findings and i can help you further. make sure you are carefull dont want you to lose any fingers and remember the key has to be on and the engine warm before your fan will come on. this is just the start of alot more steps you may have to do to find the problem and will only rule out the easy problems of many many more problems that could be causing your fans not to run. Good Luck and remember i am here just comment me if you need further assistance.

Nov 16, 2010 | 1992 Pontiac Bonneville

2 Answers

Cooling fan quit running and i cant find relay


Relay may be ok, check the temperature sending unit that signals the relay to run the fan, it may just provide the ground for the cooling fan! Temperature sensor for the cooling fan circuit!

Sep 06, 2010 | 2006 Chrysler PT Cruiser

1 Answer

2004 kia rio fan not coming on car running hot


FIRST CHECK FUSE AND RELAY.IF BOTH IS GOOD.SCAN CHECK FOR FAULTY COOLANT TEMPERATURE SENSOR IT TURNS ON COOLING FAN AT SET TEMPERATURE.IF COOLANT TEMP SENSOR IS GOOD.HOT WIRE COOLANT FAN IF DONT WORK FAN MOTOR IS BAD.IF COOLING FAN RUNS WHEN HOT WIRED.THEN YOU HAVE DAMAGE WIRE OR SHORT OR THE CONTROL SWITCH IS BAD.ALSO CHECK HVAC FUSE BEFORE BUYING ANOTHER CONTROL SWITCH THEY ARE NOT CHEAP.

May 20, 2010 | 2002 Kia Rio

2 Answers

I have a 1999 chevy cavalier and the cooling fan will not start


CHECK COOLING FAN FUSE AND RELAY.IF BOTH GOOD SCAN CAR TO CHECK COOLANT TEMPERATURE SENSOR FAULT CODE.THE PCM AND COOLANT TEMP. SENSOR IS WHAT CAUSE FAN TO RUN AT CERTAIN TEMPERATURE.IF ALL IS GOOD.HOT WIRE COOLING FAN USING JUMPER WIRES TO BATTERY.IF FAN DONT RUN REPLACE FAN MOTOR.IF FAN RUNS YOU HAVE SHORT OR BROKE WIRE IN THE COOLING FAN ELECTRICAL CONNECTOR.

May 06, 2010 | 1999 Chevrolet Cavalier

1 Answer

Cooling fan motor, how to fix it?


Check the fuse first. If the fuse is good, apply 12 volts directly to the fan motor. If the motor does not run then replace it. If it does run replace the thermal relay.

Nov 05, 2009 | 1998 Oldsmobile Silhouette

2 Answers

GRAND PRIX


are your electric cooling fans running?

Jun 30, 2008 | 1994 Pontiac Grand Prix

Not finding what you are looking for?
1994 Pontiac Grand Prix Logo

591 people viewed this question

Ask a Question

Usually answered in minutes!

Top Pontiac Experts

yadayada
yadayada

Level 3 Expert

64052 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

21990 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6812 Answers

Are you a Pontiac Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...