Question about 2000 BMW Z3

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Whistle noise inthe front of the engine of bmw z3 2000 2.3

Whistle noise in the front side of the engine

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A leak in a hose or a bearing on a motor

Posted on Feb 18, 2012

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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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

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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

Whistle noise


Start the car, open the hood, remove the oil filler cap off the valve cover, if the noise goes away, the problem is in the "positive crankcase ventilation" system (blown diaphragm).

Jan 12, 2014 | BMW Cars & Trucks

1 Answer

I have had intermittent hi pitch noise from the engine(sounds like a tea kettle or stem engine whistle) they were two oweeks apart. 1st one not veryloud two weeks latter it was screeching loud while was...


possible belt noise. Does it happen with A/C on? Also have the bearings checked on the idlers and tensioner for the belt system. Ive had a 03 bmw 325i do something very similar. Let me know I am super curious if that is it

Aug 12, 2013 | 2009 BMW 3 Series

1 Answer

Whistle noise in the water pum of bmw z3 2000


have it replaced before any damage occurs

Feb 18, 2012 | 2000 BMW Z3

2 Answers

Hi i got problem with my bmw e39 540 i auto .when engine warm it changes gear late and got a whisle noise .it only does when engine warmed and if i turn engine of and wait for 20 min or less it gets normal...


Look for vacuum leaks, late shifting can be a result of lower than normal manifold vacuum, look for dislodged or broken hoses.

My thought is when you find the whistling, you will have the solution...

Doc

Sep 18, 2009 | 2001 BMW 5 Series

1 Answer

Fuel injector noise???


yes sometimes injectors whistle try a new injector use a stethascope to pinpoint the whistle

May 31, 2009 | 2006 Dodge Durango

2 Answers

BWM 318 DRIVE BELT NOISE


bearing in the a-c ,sounds like it needs a new 1 .not a easy fix

Jan 06, 2009 | 1997 BMW 318

1 Answer

Squeak in front of engine 2002 taurus


I assume that the noise changes with engine RPMs, not vehicle speed since you mention washing down the engine - something pretty hard to do if the car is going down the road-
Is it possible that what you describe as a squeak is instead a whistle? The symptoms you mention related to water could mean that an intake manifold gasket (or another part of the intake system) has a bad gasket and is causing a whistling noise from air being pulled in where it shouldn't happen. If the failed gasket is allowing water into the intake system, that would explain why the engine sounds like it wants to die. 
You might take a 2-foot length of vacuum hose or similar, hold one end to your ear and move the other end around the engine to see if you can more accurately isolate the source of the noise, be it squeak or whistle.    Obviously, don't hold the hose too tight in case you get tangled up with a belt or rotating part.
Good luck-

Nov 10, 2008 | 2002 Ford Taurus

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