Question about 2005 Chevrolet Uplander

1 Answer

High speed fan running all the time

I have Chevy Uplander 2005 , since last week the high speed fan is running all the time once I start the AC. The rely was replaced but still the same issue. Can you help

Posted by on

  • Anonymous Mar 16, 2014

    Warning came on telling me to turn off ac to protect engine

  • Anonymous Mar 20, 2014

    fan doesn't come on and run at high speed while driving; just runs slow continuosly

×

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.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 625 Answers

If temperature is over 80 degres outside, or the ac pressure over 250, it will be on all the time, but if still doing it, like abnormal, then have the a/c presuure swtch replace or inspect.

Posted on Aug 17, 2008

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

My ac is not working I have a Chevy Tahoe 2005 the fans won't turn on either .


Hi Maria , The A/C system wouldn't keep the fans from running but none working cooling fans will keep the A/C from working ! This is a fairly complex system if your not familiar with this sort of thing ! I will add the description from the factory service manual.
Cooling Fan Control - Two Fan System
The engine cooling fan system consists of 2 electrical cooling fans and 3 fan relays. The relays are arranged in a series/parallel configuration that allows the powertrain control module (PCM) to operate both fans together at low or high speeds. The cooling fans and fan relays receive battery positive voltage from the underhood fuse block.
During low speed operation, the PCM supplies the ground path for the low speed fan relay through the low speed cooling fan relay control circuit. This energizes the low speed fan relay coil, closes the relay contacts, and supplies battery positive voltage from the low fan fuse through the cooling fan motor supply voltage circuit to the left cooling fan. The ground path for the left cooling fan is through the cooling fan s/p relay and the right cooling fan. The result is a series circuit with both fans running at low speed.
During high speed operation the PCM supplies the ground path for the low speed fan relay through the low speed cooling fan relay control circuit. After a 3 second delay, the PCM supplies a ground path for the high speed fan relay and the cooling fan s/p relay through the high speed cooling fan relay control circuit. This energizes the cooling fan s/p relay coil, closes the relay contacts, and provides a ground path for the left cooling fan. At the same time the high speed fan relay coil is energized closing the relay contacts and provides battery positive voltage from the high fan fuse on the cooling fan motor supply voltage circuit to the right cooling fan. During high speed fan operation, both engine cooling fans have there own ground path. The result is a parallel circuit with both fans running at high speed.
Do you have a check engine light lit ? The thing to do would have it check at the dealer or a ASE certified repair facility ! They could hook up a advanced scan tool an diagnose fairly quick ! Or you could find a wiring diagram an try testing with a volt meter yourself ! But watch yourself so you don't short out the PCM - engine computer !

May 01, 2015 | AC Cars & Trucks

1 Answer

Wiring pulsar meter 2010 in 2005 chevy uplander


what color is the speed secor wire and where is it located

Sep 01, 2012 | Cars & Trucks

1 Answer

I need to install a radiator fan relay for a 2005 Chevy Uplander but I don't know where it goes..In FAN 1, FAN 2 or FAN 3


A simple way is to exmine the relays, if they are all the same,number and configuration, you can swap them around until the fan you are trying to enable runs, then discard and replace the last one you unpluged, or look at a schematic diagram usually in the owners manuel or available at the dealership for reference.

Jul 24, 2010 | 2005 Chevrolet Uplander

1 Answer

2001 chevy blazer ac fan won't run


Check your fan relays by swapping them with known working relays of the same type. If the fans start to run, you'll have to buy a couple new relays. Your owner's manual should tell you which relays are the low and high speed fan relays.

Jul 03, 2009 | 2001 Chevrolet Blazer

1 Answer

Some fan switche on the blower of my 2005 tahoe don't work


Look at the connector at the blower resistor. They melt. Bottom of right side of dash under the black close out panel. GM sells a repair kit for this.

Jun 22, 2009 | 2005 Chevrolet Tahoe

1 Answer

The AC blows on #4 fan setting but doesn't blow at all on 1-3


That is the blower resistor. 4 is wide open, so, no resistance. I had 4 of them put into my truck. The wires were burnt and shorted the others until the problem was found. Check the plug if you do this yourself.

Jun 13, 2009 | 2005 Chevrolet Colorado

2 Answers

2001 Chevy Venture Cooling Fans always running on high


either the temp sensor is bad but, it sounds like the fan relay is stuck.
replace the relay its in the fuse box.

Mar 23, 2009 | 2000 Chevrolet Venture

2 Answers

I have a 2005 chevy silverado heater/ac fan stopped working . Checked fuses all were good .Removed fan and it works ,whats next?


Treed55508,

Try this solution. I have had the same issue three times. A Chevy tech told me that if it keeps doing it, to replace the blower motor, as it seems to be a chronic problem with the blower having to much resistance and thus burning out the resistors. I suspect that you probably had lost one speed first and then more. It has happened both ways with me, once the entire thing went out at once and then the other times it goes one speed at a time.

http://sparkysanswers.blogspot.com/2008/07/2005-chevrolet-silverado-blower-inop.html

Jan 06, 2009 | 2005 Chevrolet Silverado

1 Answer

2005 jeep grand cherokee 4.7 Ac fan lost the 3 lower settings, only the high setting still worked. For a while the lower fan settings would just come on, and then go out again. The high fan setting...


Well, the blower resistor handles the lower speeds and the hi-blower relay handles the hi speed only. if the fan still works on the lower speeds then the resistor is bad. if the fan doesn't work at all then your motor has failed and or burn't the relay out also. if you can get your blower to start by hitting the kick panel above the pass. side foot area then the motor is bad. if you are handy enough to drop the kick panel and access the motor then check the connections at the motor. Then wack the motor and see if it comes on then. you will most likely find the problem if you follow those simple rules above. Good luck.

Jul 31, 2008 | 2001 Jeep Grand Cherokee

Not finding what you are looking for?
2005 Chevrolet Uplander Logo

Related Topics:

671 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet 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 Chevrolet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...