Question about 2005 Chevrolet Impala

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2005 chevy impala overheat light comes on, the car was shaking when I started it and cold air when idling but when given a little gas the car starts blowing out hot air what do you think it might be?

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For car running hot and overheating issues, I suggest to you go through this help links. Click this link below and go through the troubleshooting procedure to take care of the problems: ----Car runs hot? http://howtobyme.blogspot.com/2011/11/car-runs-hot-in-traffic.html
-----------All types of car overheating problems and troubleshooting?

http://technoanswers.blogspot.com/2011/11/all-types-of-car-overheating-problems.html
Car freeze overnight and started overheating while driving?http://technoanswers.blogspot.com/2012/01/car-freeze-overnight-and-started.html-----------Engine Overheats and heater blowing cold?

http://howtobyme.blogspot.com/2011/11/engine-overheats-and-heater-blowing.html

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Car overheats and Air blows hot at idle?
http://howtobyme.blogspot.com/2011/11/car-overheats-and-air-blows-hot-at-idle.html
--------overheating? http://schematicsdiagram.blogspot.com/2011/12/buick-century-overheating.html
----------Car engine Overheats and transmission starts slipping?http://schematicsdiagram.blogspot.com/2011/12/car-engine-overheats-and-transmission.html
----------This details will help.Thanks.

Posted on Feb 18, 2012

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6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

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Posted on Jan 02, 2017

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meannic

  • 34 Answers

SOURCE: 2002 Chevy Impala low coolant light is on

make sure coolant level is where is suppose to be. take of radiator cap let engine run. might be air bound. if still doing it might have waterpump problems. but it sounds like air in system.

Posted on Aug 09, 2009

Anonymous

  • 251 Answers

SOURCE: 2006 chvy impala when idling dont blow hot air

1 Inspect Cooling System Mix Coolant level low or flow is restricted. grey_line.gif 2 Inspect Thermostat Thermostat stuck closed grey_line.gif 3 Inspect Heater Control Valve Leaking or defective heater control valve. here something to help u

Here to help Shaun

Posted on Nov 23, 2008

Anonymous

  • 118 Answers

SOURCE: How do i change the Blower motor resistor on a 2005 chevy impala?

The blower motor resistor is located behind the glovebox mounted in the fan housing box under the dash.

Posted on Jul 20, 2009

deschilz

  • 44 Answers

SOURCE: my heater is blowing out cold air in my 2005

I can suggest three things that will normally fix this.

They are:
1. Fluid level
2. Clogged Heater Core
3. Bad Thermostat
------------------------------------------------------------------------------------

Section 1. Fluid Level
First, check the fluid level in the radiator (not the expansion/overflow tank) when the car is cold.

You will need to remove the radiator cap (push down and turn), as I say, when the car is cold so you don't get burned. If low, start the car with the cap off, turn on the heater and top off the radiator with antifreeze when cold then again after the car gets up to normal operating temperature. The thermostat will normally be open to the heater core at that time. Top off the radiator with the car running (since you have the cap off there will be no pressure build up so this is safe to do).

Recap the radiator making sure it is all the way on (push down and turn) and check your heater.

If no heat, feel the rubber hoses that go into your heater core. These are typically on the firewall and close together. Feel both hoses.

If one is hot and the other is cold, do the steps in section 2. If neither one is hot, skip to section 3.

Section 2. Clogged heater core

With one hose hot and the other cold... you have a clogged heater core (a small "radiator" inside the heater). One way to fix this is to back-flow the heater core. This can be done without removing the heater core with a garden hose. To do this, remember which heater hose is cold.

Remove both hoses that go to the heater core at the firewall, you will then have two metal pipes that come out of the firewall. Take a garden hose and force water into the "cold" water pipe. Sometimes you will need to get another hose that is slightly smaller than the pipe at an auto parts store or, cut the end off the garden hose to get some good water pressure into the heaters core from the garden hose. This will force water in the reverse direction it normally flows and blow out gunk that probably has collected inside it.

If nothing comes out (really clogged), you will need to replace the heater core or take it to a radiator shop to be cleaned and reconditioned.

You may want to flush the whole cooling system as well because that gunk came from somewhere.

Section 3. Bad thermostat

If neither heater hose is hot... you probably have a bad thermostat and this should be replaced. You can normally find this by tracing the top, large main radiator hose to where it connects to the engine block. The thermostat is normally inside where this large hose connects to the block. (make sure to use a new gasket and silicone to seal it).

Good luck and stay warm this winter! -Dan

Posted on Oct 14, 2009

Anonymous

  • 491 Answers

SOURCE: 2005 Chevy Impala driver's side heat blows cold.

First....buy a drivers side air flow actuator at a auto parts place for dual zone heating/cooling.
(NAPA etc will have it.....or the dealer)
Open the glove compartment.....all the way....you may have to take the screws out at the bottom......look in at the heater assembly....look over to the left....you will see the two air flow actuators.
Look at the part you have and match it to the part on the heater assembly.
The actuator that is closest to the engine is the drivers side control.
Replace it.
Try your controls and check for heat and cooling on both sides.
The stepper motor in these actuators goes bad on quite a few...but over look that.....you have a great car,good for many miles of trouble free driving.


Posted on Nov 03, 2009

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For rough idle issues and problem troubleshooting,go through the help links provided below :----- van idles rough?

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http://howtobyme.blogspot.com/2011/11/car-overheats-and-air-blows-hot-at-idle.html

------
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http://schematicsdiagram.blogspot.com/2012/01/while-stop-engine-idles-like-cylinder.html

---------

This will help.

Thanks.

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2008 Chevy Impala, was in a front end collision, the heater only blows hot air when the rpms are above idle. when at idle it blows cold. Any ideas?


There's probably a little vacuum actuated valve in one of the hoses going from the engine block to the heater core. make sure this valve is working.

Also... check coolant level

and

Your water pump may be marginal, only circulating adequate collant at engine speeds above 1000 RPM or so.

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1 Answer

Over heating


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