My W reg Ford Mondeo 2.0 Zetec makes a funny noise when started from cold. It sounds like a belt screeching, but soon disappears when the car has warmed up a little (after around 5 minutes).
Any idea as to what this could be? It's not as loud as a worn fanbelt and the noise is quite high pitched. The car has done 76,000 miles.
The car is having a service next Thursday and I'd like to mention the problem.
Many thanks
Edited by Webmaster on 23/11/2007 at 17:09
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fanbelts make different tones of noises Dependant on what they're bolted too, belt tension and type etc. It's almost certainly a screeching belt.
As it's in teh garage next week, describe the symptons and ask the mechanic to investigate.
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I read often, only post occasionally
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High load on battery when starting to get the juice back in , so tends to starin. But should be silent so needs adjusting.
Unless it is other belts, steering?, hopefully not timing - too early for chain?
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Should be one serpentine belt feeding alternator,PAS and if fitted A/C.
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Hi,
Simple test is to start car up from cold as you normally do. Beforehand, arm yourself with a container of water. When you start up and hear the screeching, pour plenty of water in the area of the fan belt You might get sprayed a bit. If it stops screeching the fault is with the belt. It either needs tightening or replacing. A simple, free test that proves 100% diagnosis.
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These are the views of Robin the Technician with 35 years in the trade. I fix, therefore I am...
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Thanks guys I'll ask the mechanic to check these things.
Thanks again!!!
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It could be a problem on the charging side of the alternator putting extra strain on it during the first start up and initial charge of the battery.
I would get them to check the charging side of the system, and also probably worth while checking that the battery is holding full charge over night.
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It still shouldn't squeal no matter how hard the alternator is working.
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Agree totally with jc2.
Any car starting up from cold will load the alternator as it has to replace the charge lost on initial start up. My suggestion on how to test for the fault costs zip, zilch nada, nothing. Of course you could read into the problem lots of other underlying things. Go for the most cost effective FIRST. If that does not work, then you've spent nothing trying and you move on to test things that do cost money.
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These are the views of Robin the Technician with 35 years in the trade. I fix, therefore I am...
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