Question about 2007 Chevrolet Impala LS Sedan New Cars

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Overheating until i turn off A/C then returns to normal temperature, how do i repair? ,

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Hello rsgranados 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 2007 Chevrolet Impala LS, 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 like you. So here is the link to:
How to diagnose your overheating Chevrolet Impala engine

Anyways if that helps you any little bit, then feel free to follow me on Twitter. That one is at: twitter.com/acoates23234

Thanks for the vote, and good luck!

Posted on Dec 27, 2010

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Posted on Jan 02, 2017

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Why is my radiator fan staying on constantly until i turn off the car.


Hi Sian, I'm AL the owner of Big As Auto Repair in St Charles Mo

I look forward to helping you.

Sian, your engine is overheating and this is a crucial issue. This problem can damage you engine do not let it run very long until you find out the problem. First: VERY IMPORTANT for your safety, wait until the engine cools completely at least an hour, then take off the radiator cap, if you only have a recovery bottle make sure there is coolant in the radiator or recovery bottle. If there's no coolant top off the coolant and see if it overheats again. If it is full of coolant you can try changing the thermostat and see if that stops the overheating. To answer your question the fan is running all the time because of the overheating issue, its trying to cool down the engine. Hopefully it has not overheated enough to warp the heads or damage the engine. Let me know what you find and for further help click here: Auto Repair

Mar 14, 2015 | Cars & Trucks

3 Answers

2005 Kia optima is overheating, at high speeds 70 to 80 mph on a hot southern day, it cools down when I drive at slower speeds.the front end was wrecked and repaired, it has a new water pump, new radi


The suggested answer here about a bad electrical ground is a possibility, as gauges and senders do depend on good ground return.

Given that your cooling system was worked on, it is possible you have a big bubble in the coolant system which means it has not got all the capacity it should.

Go park nose up on the steepest hill where the handbrake will hold, let it cool down until you can safely remove the radiator cap, open the heater control fully, and idle the engine until it is at normal operating temp. If you see the level drop, it had a bubble in it.

You might also want to have it tested for combustion gases getting in the coolant via a slightly leaky head gasket.

https://www.youtube.com/watch?v=a3J00_e7fyo

Oct 28, 2014 | 2005 Kia Optima LX

1 Answer

2002 celica no heat /overheating


I doubt that the belt is the problem as you will be have problems with the charging and probably the air con. The most likely problem would be the thermostat. Thermostats have two purposes, firstly they stop water circulating when the engine is cold so that it can reach operating temperature quickly (which also gives you warm air quicker in the morning). Secondly it regulates the speed that the water circulates. If the coolant is circulating too quick then it wont stay in the radiator long enough to be cooled therefore causing the engine to overheat, the air con turns on a thermostatic fan to increase airflow so the cooling will improve that's why the temperature "returns to normal". You will find on colder days the temperature will drop "lower than normal" with the a/c on. It's worthwhile changing the thermostat as you will find that your car will actually run a bit more efficient on fuel. Also check that the fluid in the cooling system is proper engine coolant, that will help considerably with the proper cooling of the engine not to mention reduce corrosion of parts in the system which can be very expensive to replace.

Apr 04, 2014 | 2002 Toyota Celica

1 Answer

I have a 2003 VW Passat 1.8T. When I first start and drive the car, the coolant temp is normal. After a few miles, it will suddenly climb to the red, and STOP check coolant comes on. If I loosen the cap to...


Has coolant level been going down in return reservoir at all, as in have you had to add coolant recently to bring it up to top level? Have you tried running engine from cold, with heater on and let it run up to normal temperature with cap off return reservoir? If not do so, and watch level in reservoir and if it goes down, add as needed until engine running at normal, and not overheating. Allow rad fan to kick on & off a few times before re-installing cap on reservoir. Pay close attention to engine temp while doing this. If it goes high, shut it off and let cool. Be careful, my son's Passat just had overheat problem and turned out to be impeller on water pump ( internally) was spinning on shaft of pump. Thermostat is certainly a consideration if coolant is full, and all air bled out. Keep me posted on what happens when you run with cap off and keep reservoir full. Don't forget, heater on while doing this.

Dec 05, 2012 | Cars & Trucks

1 Answer

My 2001 Lincoln Ls is overheating


Overheating Due to corrosion block in Water Pump on Erratic engine coolant temperature or intermittent overheating can be caused by corrosion inside the water pump. ...Either condition reduces coolant circulation resulting in engine overheating.

Apr 12, 2017 | 2001 Lincoln LS

1 Answer

I have a 1994 Dodge intrepid 3.3 engine Just have New Radiator, Water Pump and Therma stat placed in car. However the Car kept leaking Fluid out of The coolant tank. My mechanic fixed that by Pressurising...


1) Your car should have a thermostat regardless of what your mechanic says. Fuel injected vehicles run better and more efficient at proper temperatures. So re-install thermostat properly before step 2.
2) Did the mechanic make sure the heater was on high temperature and blower on when he re-filled the cooling system?
Maybe not. So start engine when cool and rad cap off. Fill rad about an inch from the top and let the engine run up to normal operating temperature and keep an eye on coolant level in rad and keep it topped up as it's running. Rev the engine slightly for 5 seconds or so every once in a while to help with flow and pressure to make sure coolant is getting to and through heater core. Keep observing flow in rad to make sure it's good, when thermostat opens. You won't see much movement until thermostat opens at normal operating temperature, then you should see flow in rad and shortly after, rad fan should come on.Leave rad cap off and heater on until the rad fan comes on and off 3 or 4 times to make sure all air is out of the system. Then, make sure rad is topped up, put rad cap back on and fill return bottle to proper level. If that doesn't cure your overheating, then something was done wrong, or you have a possible head gasket problem but proper diagnosis should be done by a competent mechanic. What was the car doing initially to warrant these repairs, overheating?

Apr 08, 2012 | 1994 Dodge Intrepid

1 Answer

I let my car heat up to get frost of window for about fifteen minutes. When I went out the frost was still on window and no heat coming from dash and car was overheating. I shut it off, let it cool down...


Start with engine cool, remove rad cap, start engine and turn heater on. Top up rad level and Let engine run until it get's up to normal operating temperature with cap off and add coolant as you see it go down. Watch in rad for coolant to start moving quicker, once gauge gets close to normal temperature, indicating that thermostat has opened. Wait until you see that 2 or 3 times, then top up and install rad cap. Top up coolant return bottle to proper level . You'll want to keep a close eye on coolant return bottle level for next little while. If coolant got that low in the first place, you have a leak somewhere that will have to be found.

Mar 31, 2011 | 2002 Chevrolet Impala

1 Answer

Thermofans don't kick in, but temperature seems ok


Hello... You should not be concerned... This is normal... Also, normally you should not hear the thermostat. But the Fans don't normally turn on until about 100 degrees centigrade....

Good Luck

Apr 07, 2010 | 1989 Toyota Camry

1 Answer

.I am having a overheating problem on a 2007 E450


A van that is only 2 years old shouldn't have a cooling system breakdown. I think that with the hot humid weather this year your cooling system doesn't have enough extra cooling capacity. I would look at separating transmission and oil coolers from the rad to their own coolers to take the pressure off the rad. You should also probably look at putting in a larger rad and/or fan to help keep the temperature closer to normal.
That's my 2 cents. Hope it helps.

Aug 24, 2009 | Ford E-Series Cars & Trucks

2 Answers

Overheating


Did you bleed the cooling system after refilling the radiator ? to bleed the system, fill the radiator with water and coolant. Run the engine until it is at a good temperature. Then turn off the engine and look for a bleeding screw at the oulet of the thermostat housing and turn it with a screwdriver counterclock wise. The trapped air will go out and coolant will start coming out. refill the radiator and repeat until only coolant comes out and no air.be careful not to burn yourself.

Feb 16, 2009 | 1994 Dodge Caravan

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