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When the car is stationary and the air condition is switched on, the whole car shakes.

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  • sam-007 Apr 22, 2009

    1996 Volkswagen Polo - do you think it will be very costly to repair?

  • sam-007460 Apr 22, 2009

    is it possible that the engine mounts could have been damaged? that probably could be another reason why the engine shakes? any idea?

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  • Master
  • 1,489 Answers

It sounds like the idle up system for the A/C is not working. When the A/C is turned on either a computer or a mechanical solenoid increases the engine idle speed to prevent the shaking.

What is the make and model?

Posted on Apr 22, 2009

  • Samuel Charles Spriggs Apr 22, 2009

    Well, of all the possible repairs you could encounter, this one is on the low end of the cost scale. My guess is $150-$500 -- but this is purely a guess.

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The driver side tire on my Nissan Altima shakes badly I've changed the brakes but I'm wondering if I need to change the lower control arm


Can you grab the tire/wheel assembly and it has looseness while stationary or is it a shake that starts when speed increases?
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If there is any looseness when you grab it while stationary,get a look under there SAFELY!! and replace any loose parts.

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My air conditioner is not working on my 2005 Nissan quest se. what may be the problem? it was working fine yesterday. there is plenty of antifreeze


anti freeze has nothing to do with air conditioning
shaking at speed is , tires, wheel alignment, suspension parts or balance and again is not related to air conditioning
working one day and not the next suggest a leak in the ac system and now the low pressure switch is not allowing the compressor to work
So to cover your problems
take the car to an accredited auto ac specialist shop and have it checked for leaks and gas
then take it to an accredited suspension for a thorough check of the front end , then have a wheel alignment done

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WILL I NEED TO CHANGE MY COMPUTER IN MY CAR IF IT STARTS TO SHAKE


The computer in your car is called the ECU, it is unlikely that it will need to be replaced and that your problem lies elsewhere.

Is the car shaking when only driving or when stationary too? If it is shaking when driving above a certain speed, the problem is likely to be a problem with your handling/wheels either being out of balance or a tracking problem

If your car is shaking when you turn it on. It will be ideiling rough which could be down to numerous problems such as not getting enough fuel or air, or there being a misfire on a cylinder. It is best to get a diagnostic check done by a garage and then come back and inform us of the problem.

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Po301 pd on mazda mpv 2004


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1 Answer

Air conditioning switches to heat when the truck hits a bump.


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I have a 2003 mitsubishi galant ES 4 cylinder and have a check engine light message on i had the code read at auto zone and they told me the third cylinder is misfiring and when it idles it jumps around...


Misfire means you need spark plugs replaced. Or spark plug coils.

That's why the whole car starts shaking because its running basically on 3 cylinders and not 4 as supposed. There is no gas compression on the 3rd cylinder because once again the spark plug is "misfiring"

There also might be even a bigger problem which could be the distributor cap where the coils are connecting outside the engine.
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hope that helps.

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Air condition not cooling. Indicator light flashes when air is on intermitantly.


Check the refrigerant charge of your system. If there's no pressure in the lines, the whole A/C system will shut-off. Check for leaks in the tubes, hoses, filter dryer, pressure switches, and compressor fittings. If the system has no charge and there's no visible leak from the items mentioned, the leak could be in the evaporator coil or condensing coil.

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1 Answer

Air Conditioniong not working


U may be low in Freon gas.
When Freon is low there's low pressure switch that will prevent A/C compressor clutch from engaging to protect it from failure.
So, first check Freon pressure & any leaks form lines & hoses fittings.
Even if the fan is working, that doesn’t indicate proper compressor OP'S.
Look at the compressor front side you'll see the clutch stationary while the AFT pulley moving.

Then put air-condition compressor switch to ON (Engage),
You should see the clutch engage & start rotate,
If NOT, this is very clear indication u r low in Freon.

Regards;
MAR

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