05 sunfire fan comes on at start up and stays on

Question 1

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2004 sunfire won't stay running when applying the gas starts fine but does stay running

does the check engine light come on? any codes set? Try tapping on MAF sensor while car is idling

Feb 17, 2015 • 2004 Pontiac Sunfire

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1answer

Why does the cooling fan stay on never shuts off?

If you are not the first owner it may be wired to the ignition, Previous owner may not have been able to get it to come on?

Aug 31, 2012 • 1999 Pontiac Sunfire

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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

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Keeps overheating. Heat works great, replaced thermostat, fan doesn't kick on so I replaced the relay, fan still doesn't come one. Coolant light stays on but plenty of anti freeze. I'm at a loss...

Hello, pgen0315 and thank you for asking your question on Fixya!

Here is a simple process that will walk you through a few steps that will pinpoint the overheating problem on your 1996 Pontiac Sunfire, without even using any tools. It has helped millions of people, and I am certain that it will help you, because I wrote it for people in your exact situation.
How to diagnose your overheating 1996 Pontiac Sunfire

Get more great money saving tips and tricks about your vehicle from: twitter.com/acoates23234

Thanks for the vote, and good luck!

Dec 09, 2010 • 1996 Pontiac Sunfire

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Why would make the fan stay on in a 2002 sunfire after you shut the engine off

It has an electric fan and is set to stay on to cool the car once parked nothing to worry about should cut off.

Nov 25, 2009 • 2002 Pontiac Sunfire

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1answer

I have 2005 Sunfire and my horn recently will start going on it's own. I'll hear a little clicking and then the horn starts randomly going off I had to remove the fuze for it to stop, how can I fix this?...

I would change the horn relay it is most likely the cuplrit, I will look into the CEL and get back to you, the light icon is telling you that you are running on driving lights. which is normal.

Aug 03, 2009 • 2005 Pontiac Sunfire

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1answer

Cooling fan

Yes, it's probably the PCM. I had the same problem, and upon replacing the PCM it started working again. If your cooling sending unit is new, and so many parts of your fan assembly are new, it's probably not receiving the signal from the sending unit. Hope this helps.

Jul 22, 2009 • 1997 Pontiac Sunfire

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1answer

2003 Sundifre won't STAY running

The gauge problem sounds like the common issue on the 03-05 Sunfire instrument clusters where the stepper motors on the cluster's circuit board fail over time. It can be fixed, check out this page for more on how to get it repaired - Sunfire instrument cluster fix

Jun 16, 2009 • 2003 Pontiac Sunfire

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1answer

Trouble with my speedometer starting off at 60 or 100

Pretty common on the 03-05 Sunfire instrument clusters. It's caused by the stepper motors on the cluster circuit board going bad but it can be fixed. Check out this page for more about how to get it fixed - Sunfire speedometer fix

Feb 21, 2009 • 2005 Pontiac Sunfire

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1answer

Sunfire cooling fans

run wire from fans inside car to ignition switch pink wire and it will go on and off with key these wires will be all togeather large along with yellow two reds and brown etc. use the pink.

Jan 04, 2009 • 1999 Pontiac Sunfire

Question 2

Jeff Armer

Pontiac Master 15,575 Answers
Posted on Apr 04, 2017

Jeff Armer

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Joined: Nov 22, 2012

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What fan ? radiator , heater ?

Testimonial: "rad fan....sorry"

1 more comment
Jeff Armer Apr 04, 2017

Maybe a relay has stuck contacts . Do you know about relays ?
Jeff Armer Apr 04, 2017

The engine cooling fan system consists of 1 cooling fan and 1 relay. The relay is powered by the battery positive voltage circuit and controlled by a switched ground from the powertrain control module (PCM).Cooling fan relay located in the under hood fuse box . Try different relay .
azeem Apr 05, 2017

Thanks a lot Thanks a lot

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05 sunfire fan comes on at start up and stays on

1 Answer

Jeff Armer

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Related Questions:

2004 sunfire won't stay running when applying the gas starts fine but does stay running

Why does the cooling fan stay on never shuts off?

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

Keeps overheating. Heat works great, replaced thermostat, fan doesn't kick on so I replaced the relay, fan still doesn't come one. Coolant light stays on but plenty of anti freeze. I'm at a loss...

Why would make the fan stay on in a 2002 sunfire after you shut the engine off

I have 2005 Sunfire and my horn recently will start going on it's own. I'll hear a little clicking and then the horn starts randomly going off I had to remove the fuze for it to stop, how can I fix this?...

Cooling fan

2003 Sundifre won't STAY running

Trouble with my speedometer starting off at 60 or 100

Sunfire cooling fans

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2005 Sunfire

2004 sunfire won't stay running when applying the gas starts fine but does stay running

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Trustworthy Expert Solutions

05 sunfire fan comes on at start up and stays on

1 Answer

Jeff Armer

Add Your Answer

Attachments: Added items

Related Questions:

2004 sunfire won't stay running when applying the gas starts fine but does stay running

Why does the cooling fan stay on never shuts off?

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

Keeps overheating. Heat works great, replaced thermostat, fan doesn't kick on so I replaced the relay, fan still doesn't come one. Coolant light stays on but plenty of anti freeze. I'm at a loss...

Why would make the fan stay on in a 2002 sunfire after you shut the engine off

I have 2005 Sunfire and my horn recently will start going on it's own. I'll hear a little clicking and then the horn starts randomly going off I had to remove the fuze for it to stop, how can I fix this?...

Cooling fan

2003 Sundifre won't STAY running

Trouble with my speedometer starting off at 60 or 100

Sunfire cooling fans

Not finding what you are looking for?

2005 Sunfire

2004 sunfire won't stay running when applying the gas starts fine but does stay running

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