Question about Cars & Trucks

1 Answer

I have an 05 Chevy impala that blows out cold air and the hot coolant temp light comes on which causes my car to decrease in speed. The car isn't over heating, there are no leaks, but antifreeze keeps running low. What could it be? Btw I put a new coolant sensor on already.

Posted by on

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

    Cheetah:

    An expert who has answered 20 or more questions within one hour.

  • Expert
  • 156 Answers

Possible heater core poss. thermostat ck. both heater hoses at fire wall 1 hot 1 cold its the core ck pass side floor wet its the core Maybe head gasket

Posted on Nov 08, 2012

Ad

6 Suggested Answers

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

Ad
  • 83 Answers

SOURCE: over heating

sounds like an air pocket or waterpump may be on way out.

Posted on Jan 03, 2009

countrysi248
  • 443 Answers

SOURCE: My 2001 chevy venture van

Make sure you have gotten all the air out of the system by running the car with the cap off for a bit.. also make sure the radiator overflow if at proper level.. next look at your radiator and see if it is plugged up with trash bugs what ever this will slow your cooling big time.. also look between your radiator and your air condition condensor and make sure its clean also there can be trash in there causing it to heat .. also check belts make sure they are tight.. really sounds like you started with air in system and system might be air locked needing to run a bit with cap off when cool. dont take cap off when hot ... make sure over flow is full also... thanks and holler if you need more. Jerry

Posted on Apr 22, 2009

  • 25 Answers

SOURCE: Why am I losing coolant and have no heat or air?

I would start by checking for coolant leaks. Common places would be in the waterpump or heater core. Heater cores can crack and leak. The heat from your vents inside the vehicle comes from air passing over the heater core, which is heated by the hot coolant flowing through the heater core. It acts in a similar fashion to your radiator, with the purpose of heat transfer. A coolant system that is low on coolant will not transfer heat through the heater core. Also, deposits from the coolant system can collect and plug the heater core which will restrict the flow and the amount of heat that is transfered to your heater. If you don't see coolant leaking externally, it may be leaking into the engine. this may be from a blown head gasket or warped head. If this is the case you may notice some whitish color smoke coming from the exhaust, as well as your coolant overflow/storage tank fluid level may increase.
The air conditioning is a seperate system and may be a seperate issue. The system contains liquid freon like a refrigerator. You can by recharge kits at your local autoparts store. If the kit works, you may find there is a leak in the system and you will loose cold air after some time. If thats the case, a certified dealer can fill the system with colored dye to help locate the leak. A bad compressor or evaporater can also cause a/c systems to fail.

Posted on Jun 10, 2009

  • 4 Answers

SOURCE: 2002 Chevy Impala low coolant light is on

I had this same problem with my 2002 3.4L engine impala. Unfortunately, there was a coolant leak at the lower-intake manifold, caused by a cracked gasket. I replaced the gasket, water pump, thermostat, spark plugs and wires and flushed out the heater coil. Didn't find out what it was until after spending 100s on Dex-Cool. I kept refilling it for months until I got a good mechanic to fix the problem whom told me that this is a common repair on older impalas and GM vehicles with 3.4 and 3.1 engines.

Posted on Jul 30, 2009

  • 6982 Answers

SOURCE: 2004 Chevy Impala no heat from defrost or heater

No heat is often a symptom of low coolant, usually followed by overheat. There are other controls that regulate heater, but right now, re-fill the cooling system with engine running and heater on high, then check for leaks (coolant you lost went somewhere...you need to determine where) Low coolant will damage your engine. Take care of that first, then if heater still does not work, then do diagnosis on that. (if you loose the engine heat won't matter, will it!)

Posted on Sep 22, 2009

Testimonial: "Very helpful! And I appreciate the input very much!"

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Daughter while driving temp light came on. However less then 3 days ago had all fluids and oil changed any thoughts?


Hello, if the water in the radiator was quite low, before topping up, there could be an airlock in the system. Does the internal heater blow hot air? If it only blows cold air, even when the control setting is set to hot this indicates either low water level or air lock in the heater matrix or pipe feeds to it. Quite a few models have bleed valves on the pipe runs under the bonnet just before the bulkhead.
Hope this helps you.

Oct 04, 2015 | Cars & Trucks

5 Answers

I have a 2003 chevy impala. Just recently come acrossed in issue where the heater blows nothing but cold air even with the temp gauge going as high as it can get. Weather its at an idle or being driven....


providing your coolant is full cause low coolant will cause no heat
and your temp gauge is normal in the middle then most likely u have a bad blend door actuator usually on the passenger side

Feb 25, 2015 | 2003 Chevrolet Impala

1 Answer

2008 chevy impala bows cold air when I come to a stop


Low coolant! Check the coolant level while engine is off.

Jan 29, 2014 | 2008 Chevrolet Impala

1 Answer

My 2004 Chevy Impala only blows cold air with heat on. The heater would only keep it a little warm the other day but now only seems to be blowing cold air.


Check in the main radiator with the motor cool that the coolant is full as if the coolant is low there will be no heat in the heater. If it is low you need to check for leaks or head gasket problems. If its full check that the temp guage is coming up to its normal position as the thermostat could be faulty. Then make sure that the heater tap is operating corectly.

Feb 27, 2011 | 2004 Chevrolet Impala

1 Answer

Chevy 2005 impala


sounds like you have a bad actuator motor that make temp go hot to cold

Feb 18, 2010 | 2005 Chevrolet Impala

1 Answer

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.

Mar 08, 2009 | 2005 Chevrolet Impala

1 Answer

Over heating


sounds like an air pocket or waterpump may be on way out.

Jan 03, 2009 | 2004 Chevrolet Impala

13 Answers

2006 Chevy Impala Heater only works when accelorater is depressed


Impalas are known for this issue, where the heating won't work properly.... usually caused by trapped air/bubbles in cooling system or slightly low coolant level. Park car so that the right front side is elevated and remove the coolant OVERFLOW bottle cap (NEVER the radiator cap) while engine is running.. This should allow the trapped air to escape. Also add a bit more coolant if needed.

Dec 25, 2008 | 2006 Chevrolet Impala

3 Answers

My 2002 Chevy Impala blows out cold air when I turn my heat on, even after the car is warmed up. PLease help.


this is caused in most cases by the air temp control blend door actuator being defective.

Dec 17, 2008 | 2002 Chevrolet Impala

Not finding what you are looking for?
Cars & Trucks Logo

Related Topics:

276 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cars & Trucks Experts

yadayada
yadayada

Level 3 Expert

76109 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22156 Answers

Randy Ohler

Level 3 Expert

14585 Answers

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

Answer questions

Manuals & User Guides

Loading...