Question about 2000 BMW Z3

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Whistle noise in the water pum of bmw z3 2000

Engine 2.3

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  • 431 Answers

Have it replaced before any damage occurs

Posted on Feb 18, 2012

6 Suggested Answers

6ya6ya
  • 2 Answers

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

  • 117 Answers

SOURCE: Will the wheels from a BMW Z3 M fit a 1999 BMW Z3 2.8 ltr roadster?

yes they will you just may need to use a wheel spacer

Posted on Jul 01, 2008

  • 1 Answer

SOURCE: 2000 BMW Z3 -- lost owner's manual

I don't have a manual for 2000 but I do have a manual for a 2002. If you'd like a copy send me an e-mail and I'll send it to you.

Posted on Jan 23, 2009

  • 1 Answer

SOURCE: Check engine light on 1998 Z3 BMW

my trip computer posts ppp after a winter storrage
disconnection from the battery

Posted on Sep 16, 2009

dizzytats
  • 38 Answers

SOURCE: I have a 2000 BMW Z3 roadster. The switch for the

This is a problem with your wiring harness near the cab/trunk line. I've been trying to diagnose my faulty top (looks like all mine is sensor problems) and I came accross this problem many times on bimmerfourms.com There is lots of useful information there.

Posted on Sep 16, 2009

  • 22 Answers

SOURCE: 2000 BMW Z3. When it rains and my car is parked

I had this same problem - 2 things to check:
Most likely it's the 3rd brake light - check the seal on the inside (you need to remove the black plastic cover inside the boot lid to be able to see - this has 4 or 6 little tabs that hold it in place and break very easily, so take care as you remove it. I suggest using a blunt knife or similar to ease it out). I had mine replaced not that long ago and as far as I can recall they're pretty inexpensive.
Also check the rubber seal that goes all the way round the boot opening, make sure it's attached all the way round and has no defects.
Hope that helps!

Posted on Oct 30, 2009

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1 Answer

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.

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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).

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ck for excessive play in the electric cooling fan blades - theses usually only come on when the car is hot or ac is used. You can also check this by locating the fan relay(s) and removing them when you hear the noise.

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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

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You have a stuck or leaking valve that is letting oil into the cylinder when it sits. You need to have the Engine serviced and possible the Head repaired.

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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-

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