Question about 1998 Oldsmobile Aurora

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Our 1998 Aurora has always made a whistling noise under the hood. It now has gotten louder and is ear peircing. Have you ever heard of such a thing? I have checked belts. All is good. What else could I check?

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Posted on Jan 02, 2017

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Look on page 6-70 of your owners manual. It is listed under Engine Accessories Belt

Posted on Dec 07, 2008

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SOURCE: Whistling sound coming from under the hood of my 01 exterra!

a vacuum leak for sure.

Posted on Apr 01, 2009

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SOURCE: My 1999 aurora tends to over heat when not moving traffic or idle

The temp sensor for the fan is along the radiator hose. You should see wires coming out from it. If you pull out the sensor from its plug, the radiator fan should turn on and if it does not then the fan could be faulty. Or the fan may be weak in blowing air in

Posted on Jun 04, 2009

  • 1129 Answers

SOURCE: I have the same problem with my 1997 Olds Aurora.

Sounds like a vacuum leak check all vacuum lines for loose connections, cracked hoses.

Posted on Jul 16, 2009

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SOURCE: 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.

Posted on Aug 29, 2009

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Making whistle noise on off on run and stopping.

There are basically two types of whistle noises.

* Whistle when you get more gas (increase RPM, put gas pedal, sometimes just idling but louder when you put more gas)
This usually intake-side leak.
Intake manifold itself, intake manifold gasket (most likely), even airfilter housing, Airflow meter housing (connector), anything where air goes to engine.
usually engine get rough or unstable idle when intake leak occur.
Engine knocking or pinging may feel.

* Whistle when you decrease RPM (engine brake, reduce speed, sometimes just idling but louder when it dropping RPM)
This usually Vacuum-side leak.
There are many vacuum hoses in engine room. even inside of cabin (heater control, etc)
Try to spot where it coming from.
Vacuum also connected to Brake servo, heater control and spark timing.

Put metal or plastic pipe (small PVC pipe will work fine) to one of your ear then isolate source of noise and find where it come from.

Feb 26, 2016 | Cars & Trucks

1 Answer

On occasion s loud whistling noise is heard from under the hood. If decelerate it stops. Usually happens drive on an incline

you may have a belt slipping and when you go up a hill and put more strain on the engine the more it slips and causes the noise. I would check belts make sure none are loose or look extremely worn

Apr 30, 2015 | Cars & Trucks

1 Answer

My 1998 chevy blazer is stuck in 4wd hi makes clicking noise under clove box

Clove box! How cool, you can bake a ham as you drive. (sorry, couldn't resist). Noise under dash is probably because you have a vacuum leak somewhere and a blend air door is flapping. Part of 4wd system is vacuum operated. There is a vacuum can under the battery (brilliant placement, huh) and the lines to it often fail over time. Use a vacuum gauge and piece of hose, one end in ear, to listen around for a small whistle = leak.

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Even the best ears sometimes miss the cause...your starter could be not completely disengaging after starting...(partially sticking into the flywheel) Hope you diagnos before a safety issue. Hope this helps.

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Sounds like a throwout bearing is dry.

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When I reach a speed of 30MPH I get a whistling noise

It is now sorted somehow the window had become slightly open and caused the wind noise.

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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

Battery light comes on and the van is making a deep whistling now

Sounds like the alternator. It has a clutch on the pulley that goes bad and make a lot of noise.

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Whistle noise when starting cold car

its proberly what they call a secondary air intake pump - what this does is increase the air flow only on cold start up - the colder it is the longer it stays on - if the noise gets louder and you will notice - get it changed - we have the same problem over here on the vauxhall omega and corsa's - bless em got to be GM

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