Question about Pontiac Grand Prix

1 Answer

When I unplug the temperature sensor the radiator fans work. I replaced the sensor and the thermostat and plugged the sensor back in and the radiator fan is still not coming on (causing overheating). What's up? A Fuse? A short? Patrick

Posted by on

Ad

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

  • Contributor
  • 29 Answers

Does the temp gauge go over 240 degrees? these coolant fans do not come untill 232 degres try turning the ac on and see if the fans come on then,if these 2 things are true this is normal,ck this 1st,hope this helps

Posted on Sep 30, 2010

Ad

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

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

2008 Chevy Avero is overheating, radiator fan won't come on


Find the coolant temperature sensor, usually near the thermostat on the engine. Unplug the connector, then with the ignition on but engine not running connect the contacts in the connector plug. Paper clip usually works well for that. If the fan comes on then, the sensor is bad.

Sep 14, 2014 | Cars & Trucks

2 Answers

97 saturn is overheating i changed the temp sen and still over heat if i unplug it the fan comes on can i drive with it un pluged


You might have changed the wrong sensor. There are two. The cooling fan sensor will be closer to the radiator, either plugged into the radiator or the thermostat housing. One sensor is for the temp gauge and the other is for the cooling fan, good luck.

Aug 31, 2011 | Saturn SC1 Cars & Trucks

1 Answer

1995 mercury sable engine electric fans will not come on. When sensor is unplugged they will work. But when sensor is plugged in the engine runs hot and fans will not work. What is problem


Check to see if the top and bottom hose are the same temperature when the car is running. If the bottom hose is cold than you have a ciculation problem. At the same time see if the top hose is hard. If not than you may want to replace the radiator cap which will hinder the circulation of your coolant, which could also keep the fan from working. Also a bad thermostat could stop the circulation. a bad water pump could affect the circulation.All I can say is go with the cap first than the thermostat. If you unplug the sensor and the fan comes on than the relay is working.Hope this helps some leave a comment.

Jul 27, 2010 | 1995 Mercury Sable

3 Answers

The radiator fan is working fine but the temperature sensor i dont know its locationmy car start overheating sometimes i need help.


The best way to get the exact location for the Temp sensor would be the Haynes Repair manual. As far as your overheating issue goes I would replace the Thermostat and see if that resolves the issue. Make sure the radiator has the correct amount of antifreeze in it.

Jul 01, 2010 | 1997 Saturn SL

2 Answers

I have replaced the radiator on my 2000 Grand Cherokee and now the on board computer reads" open circuit"in the place where the temperature should be displayed. please assist.


Either your temperature sensor is unplugged or it has failed and is giving you that reading. (most likely cause...if not, start checking wiring from the sender and make sure any electric cooling fans are plugged in as well.

Feb 04, 2010 | 2000 Jeep Grand Cherokee

2 Answers

Car overheats


The problem of over-heating could be due to one or all of these defective parts:
(i) thermostat
(ii) radiator
(iii) fan relay
(iv) fan switch
(v) water temperature sensor.
In your case, I suspect that your radiator probably is clogged, so needing replacement.

To Replace the radiator:
a. allow the engine to cool.
b. place a suitable container under the radiator, and drain it out by turning backward the wing-nut under it.
c. open the radiator cap to allow atmospheric air to further push down the coolant.
d. with a piece of pliers, depress the top clamp holding the radiator hose. Do the same for the lower radiator hose.
e. remove from the bottom of the radiator and plug wth suitable bolts, the two transmission fluid rubber lines.
f. with a 10-mm socket and wrench remove the two bolts holding the radiator to the front frame.
g. depress the electrical plug at the bottom of the radiator. Remove its thermo switch at the bottom left hand side of the radiator. (replace with new if changing to new radiator) Also notice two rubber cups at bottom of radiator.
i, installation of the new radiator is reverse of removal. Refill radiator with new coolant.

To replace thermostat:
a. disconnect the negative terminal of the battery.
b. drain the coolant into a container, as
explanied above.
c. remove the upper radiator hose from the thermostat housing on the engine block.
d. remove the two bolts from the thermostat housing. Please note the way it was bolted to the engine. Clean its housing and seating areas.
e. fit a new o-ring to the thermostat, and replace with a new thermostat.
f. tighten its bolts to 14-12-foot pounds.
g. Replace the top and bottom hoses back.
i. refill with new coolant.

To replace the fan relays:
a. open the hood.
b. disconnect the negative battery terminal.
c. locate the meduim-size black plastic box on the driver's side fender. This is where the fan relays are. Look inside the cover of the medium-size plastic box to see the fan relay positions.
d. gently and firmly pull out each fan relay. Replace with new ones as needed.

To replace the water temperature sensor:
a. this is bolted to the top of thermostat housing.
b. unplug it from it location.
c. use a 14-mm deep socket to remove the temperature sensor. Replacement is reverse of removal.

Dec 09, 2009 | 1995 Toyota Camry

1 Answer

Car is overheating


2 Inspect Belt Incorrectly routed, adjusted, tensioned, missing, or worn water pump belt(s). grey_line.gif 3 Inspect Oil Pan Gasket - Performance Ruptured, cracked or leaking radiator hose. grey_line.gif 4 Inspect Radiator Cap Worn or damaged radiator cap grey_line.gif 5 Inspect Thermostat Thermostat stuck closed grey_line.gif 6 Inspect Fan Blade Broken, missing, or defective fan blade(s). grey_line.gif 8 Inspect Water Pump Damaged, worn or leaking water pump. grey_line.gif 9 Inspect Intake Manifold Plenum - Perform Leaking water pump gasket. grey_line.gif 10 Inspect Cooling Fan Control Faulty cooling fan control or circuit. grey_line.gif 11 Inspect Cooling Fan Switch - Radiator Faulty radiator cooling fan switch or circuit. grey_line.gif 12 Inspect Engine Temperature Sensor Faulty engine temperature sensor or circuit. grey_line.gif 13 Inspect Temperature Switch Damaged or faulty temperature switch or temperature switch circuit. grey_line.gif 14 Inspect Fan Clutch Worn, loose or faulty fan clutch. grey_line.gif 15 Inspect Ported Vacuum Switch Damaged, leaking, or faulty ported vacuum switch. grey_line.gif 16 Inspect Radiator Obstructed radiator core or radiator cooling fins. grey_line.gif 17 Inspect Head Gasket - Performance Head gasket leaking coolant into cylinders here is a list of things to check Shaun

Nov 17, 2008 | 2000 Cadillac DeVille

1 Answer

Radiator Electric Fan Motor on a 2003 Buick Century won't come on when temp gets high


I have a 1997 Buick Century with the same problem. Both my fans work if the A/C is
on as they should. If your turn off the A/C the passanger side fan will not come on
and at an idle the coolant in the radiator will boil, you can hear it in the overflow tank.
If you are driving there is enough air flow thru the radiator that the coolant doesn't
boil and the car doesn't overheat. I have replace the water pump, the thermostat.
and the ETS or engine temperature sensor mounted just above the thermostat in
the thernostat housing, to no avail, I still have the same problem. The only other
thing is the coolant level sensor in the radiator, which I haven't replace yet due
to the fact you have to pull the radiator in order to replace it, which is a major
undertaking. I have a low coolant indicator on all the time on the dash so I have
a pretty good idea the coolanat level sensor is bad. The coolant level is not low
so that sensor is not working as it should. I hope this may help with your problem.
To test you fan raise the hood when it is cold and top off the radiator and fill the
overflow tank to the cold mark. Start the car and let it idle with the A/C off and
see if the drivers side fans comes on. It will have to get to operating temp
before the fan will come on. If it doesn't come on replace the radiator low coolant
sensor on the passanger side of the radiator. If that doesn't fix the problem
replace the thermostat and the Engine Temperature Sensor at the thermostat
housing with an A/C Delco Engine Temperature Sensor. Good Luck..

Sep 26, 2008 | 2001 Buick Century

1 Answer

95 mercury tracer trio/ ford escort wagon


engine coolant temperature sensor unit!? you say you had a thermostat issue some times if you over heat these the switch above might cause malfunction! I just spent 7 hours on relays!! with engine running un plug coolant sensor temp switch if your fan comes on you have no relay issues!! or ground problem keep in mind this switch tells the system the temperature then when reached sends signals to relay the fan to come on! when I unplugged mine fan ran plugged it back in off!!! replaced switch works great this is the true way to test don't get$$ it out hope this helps you out also be sure you have no air locks in your cooling system and you properly bleeded out all air sense you changed thermostat.John

Aug 18, 2008 | 1994 Mercury Tracer

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

159 people viewed this question

Ask a Question

Usually answered in minutes!

Top Pontiac Experts

yadayada
yadayada

Level 3 Expert

76682 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

8531 Answers

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

Answer questions

Manuals & User Guides

Loading...