Question about 2007 Nissan Murano SE

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New sound heard when AC turned n AC on. Metalic

New sound heard when AC turned on. Metalic like rattle can be heard under the hood when AC turned on, goes away when AC turned off

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Compressor problem ,is the most likely cause ask a local mechanic to have a look

Posted on May 30, 2010

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What would cause an audible vibration under hood when car is running at low speed with ac on? Turn ac off, no rattle. No warning lights come on.

Could be just about anything.
The engine is under extra load when the ac is running. So any small vibration is amplified with the ac on.
My first guess would be a weak motor mount if the vehicle is several years old.

Aug 30, 2015 | AC Cars & Trucks

1 Answer

Why is there a rattling sound under my hood after i re charged my ac?

The possible problem here is that you put in too much gas and the compressor pistons are pumping liquid and not gas . This is hammering the rod ends on the swivel plate and if allowed to continue will result in compressor failure requiring a new compressor Have an accredited ac specialist shop check the pressures in the system and adjust to correct levels.

Jul 28, 2014 | 2006 Scion xA

1 Answer

P1391 engine died no restart

sounds to me as if u may have locked it up have u tried turning the engine over manually to see if it is
seized up or not

Nov 21, 2013 | Chrysler 300M Cars & Trucks

1 Answer

98' Pontiac GTP, When i start my car there is a rattle sound until i turn the ac on. If I do not turn the AC on and just hit the gas it stop rattling. What is it?

where is rattle?under car ,i'm just going to give this a shot , loose heat shields on exhaust system . hope this helps ,good luck

Oct 01, 2012 | 1998 Pontiac Grand Prix

1 Answer

Exhaust rattle

Broken hanger that holds exhaust system intact. Need new pipe and hanger(s).

Jan 12, 2012 | Volkswagen Cars & Trucks

1 Answer

Rattling under hood

Sounds like time for a new engine to me. (severe engine damage due to oil loss or overheating)

Nov 13, 2011 | 1996 Ford Mustang

1 Answer

I hear a rattling noise under the hood and it sounds like something is loose and then I also heard like a boiling sound comeing frm under the hood i checked my gauges and they were fine

from your description it could possibly be the radiator / coolant overflow operating. Although, it's unusual for the noise to be loud. With your engine stone cold, check your radiator forcoolant level and also check the coolant overflow bottle for having the correct level of coolant. Also check the hose which connects the two units.

As`a precaution, check to ensure that the radiator cap is fitted correctly and securely., again with the engine stopped and stonecold.

Hope this helps.

Jan 29, 2011 | Ford Focus Cars & Trucks

2 Answers

Battery light turned on. Lost power steering and AC.

You broke your serpatine belt. Needs replacing. It's a $50ish part and easy to do if you have a diagram under the hood of how the belt fits. But if it was "rattling" for a couple of weeks take it in for crying out loud. Let the mechanic look it over to make sure your lack of vechile care didn't destroy anything under the hood.....

Jun 12, 2010 | 1998 Saturn SC

1 Answer

Start with intermittent sound behind dash board

Their is a fuse box under the driver side dash, and their is one under the hood but I'm not exatly sure were at under the hood hope this helps

Oct 22, 2009 | 2006 Lexus ES

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