Question about 2003 Chevrolet Impala

2 Answers

Check engine light is steady on 2003 Chevrolet Impala LS

I took my car to auto zone and did an OBD on it and it said the engine cooling fan relay is defective or the control circuit for cooling fan 2 so could I drive the car to shop to get fix should it be covered on my extended warranty

Posted by on

  • Wedge418 Jul 25, 2008

    I have the same problem but I haven't had it checked out. The engine temp guage shows temp climbing. When I turn the heat on the engine cools off. The coolant level is fine. I thought it might be the thermostat or the water pump. I have been concerned that the cooling fans don't run.

×

2 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

My fans that cool the engine do not come on at all. The temperature climbs when I sit still. When I drive, the car seems to cool down.What do I need to do.

Posted on Mar 19, 2009

  • christina neihardt Feb 27, 2014

    im having the same problem with my 2006 colbolt. my relay the cover came off in i can rubber band it and it will turn the fan on but when u turn off car it continues to run. n i replaced the relay in that didnt do anythyng still not working..

×

  • Level 1:

    An expert who has achieved level 1.

    Governor:

    An expert whose answer got voted for 20 times.

    Corporal:

    An expert that has over 10 points.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 2 Answers

Wedge, chances are your radiator might be clogged. Rads are designed to provide cooling even if a certain capacity is not flowing (10% or so). Beyond that, you will start to experience higher engine temperatures. You will usually start to see it when your vehicle is under load (AC is on, towing, steep inclines). By turning on the heat, you introduce your heater core into the cooling equation, therefore increasing the capacity of your cooling system enough to make up for the loss in your radiator. If your cooling system is ever low, rust develops in your block which is cleaned away by DEX Cool. However, this rust turns into a red mud which often ends up in the radiator (happens often in chevy pickups with the 5.7L). You have a few possible options if this is your problem.
1. Flush your cooling system. Not just the rad, the entire system. Make sure you get the dirty coolant out of the block.
2. This is rarely done anymore, but you can have you radiator rodded out. This involves a radiator shop taking you radiator out, removing one of the tanks, and pushing a long rod through each tube to remove any contaminates. It is not done much anymore as a new rad is often about the same cost.
3. Replace the rad.
Any route you take, make sure the ENTIRE system is flushed properly or you run the risk of recontamination your entire system. Hope this helped.

Posted on Aug 10, 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

Chevy Impala 2003. Replaced cooling radiator cooling fan. Fan now works (driver side). Hooked up code reader. Received code for cooling fan removed code because fan was replaced. Next day engine light is...


is the passenger side coming on? it is possible that it is setting the code for different speeds also. may want to check the cooling fan relays.

Aug 03, 2011 | 2003 Chevrolet Impala

1 Answer

2003 Chevy Impala, running hot. Changed fan shroud because cooling fan wouldn't turn on, switched out fan relays, no check engine light. Cooling fan still will not turn on.


Would turn the key on no need to start it and unplug the ect engine coolant temp sensor. If fans come on then suspect a faulty etc which may not turn on the engine light. Which engine is in the vehicle so I can help locate the ect which is usually by the thermostat housing.

Jun 12, 2011 | 2003 Chevrolet Impala

1 Answer

The A/C blower motor quits working on my 2003 Chevy Impala, it does not have auto temp. The blower Motor, Resister and A/C Control Head have been replced. Is there a common problem with the system quitting...


If your check engine light is on have a obd diagnostic check at auto zone or advance if it is a fuse. check the fuses under the hood first may be blown.

Jan 09, 2010 | 2003 Chevrolet Impala

3 Answers

The cooling fans stop working


check your sensor that controls the cooling fans.may need to be replaced.

Jan 01, 2010 | 2003 Chevrolet Impala

1 Answer

2003 impala is it a temp sensor or cooling fan switch


Maybe your radiator is clogged flush it out.

Aug 11, 2009 | 2004 Chevrolet Impala

2 Answers

Cooling Fan Fuse


Sounds like a short in the wiring, or a bad fan motor drawing too much current. Check the wiring for shorts, if none are found, replace the fan motor.

Jun 10, 2009 | 2003 Chevrolet Impala

1 Answer

PO481 code Chevy IMPALA 2003


Looked it up in Chilton's, confirmed in http://www.obd-codes.com/trouble_codes/

P0481 Cooling Fan 2 Control Circuit Malfunction

Each fan will throw a different code. See 3 fans listed for your model. Here's a link for the wiring schematic: http://www.chiltonlibrary.com/content/images/WD/GM/014/WD_GM_014788.pdf


Best of luck.
Greg

May 23, 2009 | 2003 Chevrolet Impala

1 Answer

My fans that cool the engine do not come on. The car seem to cool down when driving but the temperature goes up when I am sitting still. The check engine light is on steady.


Hi!

The first thing you're going to want to do is get that trouble code read. Some auto parts stores do it for free or you can buy a code scanner. Likely culprit is going to be the cooling fan itself, the relay, fuse, or the wiring/connectors leading to/from the fan and PCM. It could also be caused by a failed coolant temperature sensor.

So get that code read and start some diagnostics. I would suggest you start by checking fuses, relay, wiring. Then use a digital volt meter to see if the fan is getting 12 volts. Then try hooking the fans up directly to the battery to see if they work.

If you need more help, just let me know. Good luck!

Mar 19, 2009 | 2003 Chevrolet Impala

3 Answers

2003 chevy impala ls starts then stalls


I have replaced the radiator in my 2003 Chevrolet Impala LS. The car started running hot and shut down. Took it to a radiator shop and found a crack in the radiator. I have replaced 2 thermostats in the car already. I noticed water running from under my car today and it seems it was coming back out of the overflow. I am stumped as to what is going on with this car.

Jun 18, 2008 | 2003 Chevrolet Impala

Not finding what you are looking for?
2003 Chevrolet Impala Logo

2,158 people viewed this question

Ask a Question

Usually answered in minutes!

Top Chevrolet Experts

yadayada
yadayada

Level 3 Expert

70387 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22041 Answers

Jeff Turcotte
Jeff Turcotte

Level 3 Expert

6880 Answers

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

Answer questions

Manuals & User Guides

Loading...