Posted 15 December 2012 - 07:40 PM
My 2006 1.6tdci focus has developed a very high pitched whistle within the last mile or so. I have a recording which I'll post later when back home. The whistle started out of nowhere, and is always present. At idle, it is very quiet, and increases in both pitch and volume as revs go up. After about 2k revs, i assume its still there but engine noise takes over.
A quick Google search has suggested either a split pipe somewhere, auxiliary drive belt or the alternator. I opened the bonnet and, with the engine running, felt a warm draft in one place, near where a pipe meets the front of the engine. I'm unsure of whether this is normal or not.
Any ideas of what it could be?
Thanks in advance,
Posted 15 December 2012 - 07:59 PM
Posted 15 December 2012 - 08:08 PM
Posted 15 December 2012 - 08:53 PM
Posted 15 December 2012 - 10:11 PM
Good news: Progress!
Bad news: My car's now refusing to start. (Luckily it happened after we got back home!)
I charged my car battery up a couple of weeks ago as the battery was ever so slightly flat. Not majorly flat, however, but especially due to the cold weather I wanted to charge it to avoid, well, this.
It's not even turning over, and the battery is registering a low 11v.
This was after a journey of about 10-15 miles, with lights and heater on. The whistling started at the very end of the journey before this. The car started fine at the start of the journey, so the battery must have drained over the journey. As mentioned in the first post, this suggests the alternator.
Also, the whistling is loudest at 1000-1500rpm. Below this it's not really loud enough to be heard that well, and above this engine noise becomes too loud to hear the whistle properly.
Posted 15 December 2012 - 10:35 PM
Posted 18 December 2012 - 10:48 PM
Also tagged with one or more of these keywords: whistling
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