Question about 1998 Pontiac Sunfire

1 Answer

My 1998 pontiac sunfire is getting hot but not overheating

The fan will not turn on when the engine gets hots. how do i check the fan. i changed the relay switch for the cooling fan.

Posted by on

  • Anonymous Mar 26, 2014

    how do you chang the clutch in a 1998 Pontiac

×

Ad

1 Answer

  • 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.

    Genius:

    An expert who has answered 1,000 questions.

  • Master
  • 2,920 Answers

The fan may be bad but you can find the hot side of the plug and run a hot to the battery and see if the fan comes on. if it doesent you know you have a bad fan if it does you can run a wire to the fuse panel so that it comes on when the car does and shuts off when you shut the car off

Posted on Nov 21, 2008

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 Mechanic 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 repair professionals here in the US.
click here to Talk to a Mechanic (only 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

I have a 98 sunfire. should the cooling fan on the radiator come on from the initial start up?


The engine cooling fan is designed to come on when the engine reaches 225-235 degrees Fahrenheit. That is the only time it runs. Do you get a check engine light?

Apr 30, 2012 | 1998 Pontiac Sunfire

1 Answer

1998 Pontiac Sunfire Symptoms: -Overheating


What are you going by to say it's overheating , temp gauge ? Have you test to see what the actual temp. is > Hook - up a scan tool ,what's the PCM - engine computer seeing for engine temp. ? 223 degress the PCM should turn on the cooling fan . You could buy a Non-Contact Infrared Thermometer With Laser Targeting at harbor freight ! Radiator very hot ????? What is the right temp .
Non Contact Infrared Thermometer With Laser Targeting

Could be a bad temp gauge . Is the coolant surging inside the cooling system ? Does it have a radiator cap ? Have you replaced it ?

May 06, 2017 | 1998 Pontiac Sunfire

1 Answer

1996 sunfire overheating replaced thermostat, waterpump and heater core. Fan is working after cleaning relay. Still overheating ?


Does the top rubber engine to radiator hoes get hot? If yes then the new thermostat is working. Does the bottom return hose from the radiator back to the engine also get hot? If yes then the pump is OK. If not then there is a blockage in the system and this will need to be flushed out from both the radiator and the engine block using a high pressure hose. Does the radiator fan come on promptly. It should start before the bottom return hose becomes hot. If not then the temperature sensor (different from the temperature sender to the dash display) maybe at fault. Your relay maybe fine but it is the sensor that actually triggers the fan to come on. It may be just bad connection so try wiggling the wires to it when the engine has got warm. The temperature sensor is also important to let the engine computer management system (ECU)know that the engine has reached operating temperature. A failed sensor not only allows overheating but means that the ECU thinks the engine is still cold and runs the engine on a rich mix. Have you noticed lumpy idling when hot and excessive fuel consumption recently? these are symptomatic of a failing sensor.

Jul 13, 2010 | 1996 Pontiac Sunfire

1 Answer

Where is coolinf fan switch located on 2004 pontiac sunfire


It's inside the computer.

Turn the AC on. If the fan still does not turn on then you may have a fan relay or computer issue.

Also if the engine does not get hot enough the fan will not turn on. You may have a defective temp sensor or thermostat

May 26, 2010 | 2004 Pontiac Sunfire

1 Answer

02 sunfire overheating


make sure you have radiator full of coolant
run the car to operating temperature
check the operation of the cooling fan
feel the upper radiator hose and the lower radiator hose. they both should be hot.
if one is cold then you may have a bad thermostat or restricted flow
if cooling fan does not come on when engine is hot then you have bad cooling fan switch, relay or motor.
good luck

Mar 07, 2010 | 2002 Pontiac Sunfire

1 Answer

After spending 880 dollors on having a head gasket water pump and radiator replaced in my 1998 pontiac sunfire 2.2 liter it has no flow thru the brand new radiator engine runs supur hot 260 degrees in 2...


YOU COULD HAVE A DEFECTIVE WATER PUMP OR THERMOSTAT ALSO RADIATOR PRESSURE CAP.MAKE SURE YOUR WATER PUMP IS BEING TURNED BY DRIVE BELT.NOT SLIPPING.MAKE SURE COOLANT SYSTEM HAS BEEN BLED AND YOU HAVE HALF ANTIFREEZE HALF WATER.CHECK YOUR CRANKCASE WHEN CAR COOLS DOWN.IF OIL STILL LOOK LIKE MILK SHAKE.YOUR NEW HEAD GASKETS LEAKING.THE MECHANIC WHO REPLACED HEAD GASKET DIDNT DECK THE HEADS.THEY PROBABLY NEED SHAVED A LITTLE SO HEAD GASKET WILL SEAL.

Nov 11, 2009 | 1998 Pontiac Sunfire

2 Answers

Sunfire overheating, not low on coolant


Sensor on the engine sends info to the computer that triggers fan relay and sends power to fan. Most often problem is sensor or relay but quick check fan itself by hot wiring it to the battery Polarity is not an issue...if you get wrong it will run backwards. If it does not run, it's bad.

Jul 30, 2009 | 2001 Pontiac Sunfire

1 Answer

97 Pontiac Sunfire overheating


check the engine coolant temp sensor, if the sensor is failing it will read always cold and not turn the fan on, if everything else looks and tested ok try the ECTS (engine coolant temp sensor)

Jun 20, 2009 | 1997 Pontiac Sunfire

2 Answers

Overheating


check the engine coolant temp sensor.... this controls the computer to turn on the fan

Oct 10, 2008 | 1996 Pontiac Sunfire

Not finding what you are looking for?
1998 Pontiac Sunfire Logo

Related Topics:

529 people viewed this question

Ask a Question

Usually answered in minutes!

Top Pontiac Experts

yadayada
yadayada

Level 3 Expert

77499 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22306 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8826 Answers

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

Answer questions

Manuals & User Guides

Loading...