Question about 1997 Mercury Grand Marquis

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Air aond.not operating compessor won1t kick in when cooling is wanted

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The A/C clutch may be worn out. Replacements run about $40 plus labour.
1997 Marquis owner.

Posted on Aug 06, 2010

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What causes the cooling fan to operate non stop/ kicking in very often?


The temperature of the coolant (mixture)... is monitored by a thermostat... which then activates the cooling fan...

It is most likely in a ten year old car... that the cooling system has NEVER BEEN serviced... and more likely the FAN and Temperature sensor are the early warnings of a major cooling system failure.

Check your pump, hoses, fluid levels...for any obvious signs of leaks...

Invest in a pressure tester (see below) and test the integrity of your system... before buying that new anti-freeze.

Hope this helps

http://aideyouhuo.net/freereadbook-pdfonline/ford-bantam-2006-manual.pdf

http://www.manualspath.com/get~workshop-manual-bantam-2006.pdf

http://waterstoneaesthetics.com/ebook-name/f/ford-bantam-2006-manual-.pdf

May 06, 2016 | 2006 Ford Bantam 1.6i

1 Answer

2004 Mitubishi Endeavoe AWD 6cyl: AC is not blowing cold air. I try to recharge it but my gauge said that it was actually overcharged? My gauge works I know this. I even try to pump some coolant in but it...


Think you need a professional that knows how to work
on air conditioning ,to start from scratch
Since you were playing with it,I would leak check it,then
recover all refrigerant and air you let into the system & get
a system I could continue to diagnose, if there still was issues

Aug 07, 2013 | 2003 Chevrolet Tahoe

3 Answers

I have a 2003 chevy impala. just changed the thermastat because the temperature was fluxuating. Since changing the thermastat the temperature gage constantly read in the red, however the coolant level...


You probably need to bleed the cooling system properly.

Open the cooling system bleeder screws.

Slowly fill the cooling system with a 50/50 coolant mixture until coolant runs freely out of bleeder screws.
Close the cooling system bleeder screws
Install the coolant pressure cap
Start the engine.
Run the engine at 2,000 - 2,500 RPM until the engine reaches normal operating temperature. (midway on gauge)
Allow the engine to idle for 3 minutes.
Shut the engine off.
Allow the engine to completely cool.
Top off the coolant as necessary.
Run engine again at 2000 - 2500 RPM until the engine reaches normal operating temperature.
Allow engine to idle until cooling fans come on. It should come on with the gauge about 3/4 of the way to red. - if it gets to where is touches the red, shut down immediately.
When the fan comes on, put your hand behind the fan and observe the temperature of the air coming from the fan. It should feel hot. If it is blowing cold air, the coolant is not circulating through the radiator like it should. This could be caused by lots of things including an improper/defective thermostat, corroded water pump impeller, or a blown head gasket.

Dec 02, 2010 | 2003 Chevrolet Impala

1 Answer

My car 2005 Nissan Altima has been overheating when its 95-100+ degrees outside and when the needle hit the end of the icon on the dashboard the air condition starts to just blow normal air. After the car...


first useing a scanner or temp gun check the actual engine temp. if it is hot check for fan opperation, air lock in the cooling system water pump operation I think youll find the prblem to be the fan

Aug 18, 2009 | Nissan Altima Cars & Trucks

2 Answers

A/C does not blow cold when stopped or moving under 25 MPH


There is either an electric fan that sits at the front, or a relay operates the cooling fans to turn them on for the AC. Sitting there idling and the hood open, turn on the ac and see if a fan kicks on. If it doesn't then check your fuses and the relay for it. If it does then you just need more freon. But it really sounds like the fan(s) are not kicking on to push air through the core.

Jul 12, 2009 | 1999 Cadillac DeVille

1 Answer

Climate control does not blow cool air. When I turn the temp down there is no change in air temp. It blows full hot air. Sometimes I can give the dash a smack with my hand and it will blow cool air, but...


you going to have to tear the dash apart (ac control panel) to see why your switch is not working. The control valve unit works on vacum systems and you need to find out where is leaking or the hoses is old and broke off. If your ac compessor still working and blowing cold air but does not adjust the temperature, it will be in the control valve. Is very easy to fix if you locate the leaks or a bad valves. hope that help some.

May 14, 2009 | 1991 Buick LeSabre

1 Answer

I haver a 1989 cadi. and the air condi. compressor kicks on and offa and doesn't cool


if the compressor kicks on and off and doesn't cool this is the first sign of not having enough charge in the system. the a/c clutch will always kick on and off while running becuase this is dictated by the expansion valve which regulates the system, however you should have cool air about 50 degrees F for 134a at 35 psi on lowside and 130 150 psi on high side. the undercharge can becaused by degration of the 134a overtime or a leak in the system. have a certified ac tech look at the system and do a vaccum check for leaks if it holds a vaccum for 15 minutes at -29psi then there is no leak and the system just needs recharging.. please rate this

Oct 01, 2008 | 1989 Cadillac Sedan DeVille

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