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1994 marquis whistling noise when cold - 1994 Mercury Grand Marquis

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Posted on Jan 02, 2017

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SOURCE: Why does my 2000 Mercury Grand Marquis LS make a whistle noise when started when cold noise goes away when warm noise comes from front of engine

Engine vacuum leak . Videos on youtube showing how to find a vacuum leak . The intake manifold gaskets would be a likely possibility .

Posted on Dec 19, 2016

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Why does my 2000 Mercury Grand Marquis LS make a whistle noise when started when cold noise goes away when warm noise comes from front of engine


Engine vacuum leak . Videos on youtube showing how to find a vacuum leak . The intake manifold gaskets would be a likely possibility .

Dec 19, 2016 | Mercury Cars & Trucks

1 Answer

Why does my ford bronco make a whistling noise.?


Where is the whistling noise coming from? You are driving a classic, so it could be a vacuum hose, a partially blocked radiator hose, a bad window seal, an exhaust leak...we need more information to give an educated guess.

May 21, 2014 | 1994 Ford Bronco

1 Answer

Whistle noise near alternator


Can be the Alternator bearing or a serpentine belt pulley close by. A whistling noise can be a Vacuum leak. Sometimes when installing an Air filter, the ductwork is not reconnected perfectly.

A PCV valve can sometimes make a noise. The spring tension inside the PCV valve should keep it closed until a strong Vacuum pull opens it. This would usually be masked by the other engine noises at higher RPM.

About the only other thing you can do is use a water mist from a spray bottle on the engine seams as it runs. Follow vacuum lines and so on. Water will affect RPM so any openings can be detected.

Dec 26, 2013 | 1997 Mercury Grand Marquis

1 Answer

Rear differential has noise


Rear Diff don't exactly whistle,they whine

Is there fluid in there at the correct level?

Nov 24, 2012 | 1994 Toyota Land Cruiser

1 Answer

Can a air idle conrol valve whistle when cold


You are so right the IAC can make that whistling sound,

Nov 05, 2012 | 2004 Mercury Grand Marquis

2 Answers

97 grand marui rattling noise sounds like marble


sounds like your catalatic convertor,lifters?

Jan 02, 2010 | 1994 Mercury Grand Marquis

1 Answer

1993 Lincoln Continental v6 3.8L- whistling noise under the hood


if it's not running bad, it may be a simple crack in a pcv line, or a loose hose(vaccum). should be simple to fix.

Aug 29, 2009 | 1994 Lincoln Town Car

1 Answer

2003 Mercury Grand marquis utlimate edition Whistling noise coming from the rear and eerie annoying.


What speed?
In the trunk area?
Around the rear doors?
Only in crosswinds? Sometimes the antenna makes a whistle noise in cross winds at 50 plus mph.

Get a roll f 2 inch masking tape, and tape off areas one at a time and test drive.

May 12, 2009 | 2003 Mercury Grand Marquis

1 Answer

1996 grand marquis air conditioning


Depending on the year of the car, you may have to get the system recharged. It is actually common to do this in cars that are more than a few years old.

Apr 22, 2009 | 1994 Mercury Grand Marquis

1 Answer

Engine whistling when cold in morning


Your alternator is drawing alot of power trying to charge the battery.Try tightening the belt.That should fix your problem..The reason the alternator is whistling so much on cold starts is because thats when it takes the most power from the battery to start the car.And the noise from the alternator is it charging it back up..So I'd try tighting the belt that will fix the smell and watch for the battery light or alternator light in the dash come on the could be your alternator failing and you dont want that to happen..I hope this helps you fix the problem.Have a great day...

Mar 31, 2009 | 1994 Mazda 323

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