Squealing Noise on Cold Start

[caister]

When the cars cold and I start the engine I get a squeal for about 1-2 immediately as it fires up.

It only does it when the engine is cold. Both belts and the power steering pump were done in October. It's got power steering fluid etc and drives perfectly fine.

Could this just be moisture on the aux belt causing it to slip slightly in the morning or something like the starter motor?

 

[Damo_Sport]

fan belt.

 

[Da]

fan belt.

Aux belt, fan is electric.

 

[Damo_Sport]

people still call it fan

 

[caister]

Just the cold weather and some moisture thats causing this then?

 

[Da]

Might need tightening, with it being a new belt. I've had this before on a different Clio.

 

[Tom@JMS]

Aux belt. Did you have the tensioner replaced, or just the belt?

If just the belt I'd put money on the tensioner being seized and not doing its job properly.

Might need tightening, with it being a new belt. I've had this before on a different Clio.

Tensioner does the tightening if a non cup - manual tightening if it was a cup.

 

[Higgy]

Mine does this usually when it has been raining, I would not worry. The amount of components moving around we should all be thankfull that there is not more noise.

You should have heard my old Pug 405, it had a nasty knocking noise when cold from the engine (petrol), but it was my grandads old car and he said it started happening after 13k miles. I sold it on with 78k and it passed emissions fine and did 37mpg. So it showed the engine was in good health.

Higgy.

 

[caister]

It's self tightening on all of them bar the 172cup

 

[Jonff]

Mine does the same after it's been stood over night and when I fire it up for the 1st time. It's only started doing it since the cold damp weather has hit us so I'm inclined to think it's down to what you've mentioned.

 

[caister]

Aux belt. Did you have the tensioner replaced, or just the belt?

If just the belt I'd put money on the tensioner being seized and not doing its job properly.

Had everything done. Fred did the work so I know no shortcuts were taken and you know what hes like about making sure the full kit is used!

 

[Da]

I was referring to an older clio with regards the tightening, Mk1 IIRC.

 

[jaysjetski]

just give the belt a good coat of wd40, that should keep the moister away and stop any squeeks

 

[caister]

just give the belt a good coat of wd40, that should keep the moister away and stop any squeeks

That sounds like a bad idea to me

 

[Magic Johnson]

My dad's DCi does this too, he's also recently had the belts done. Maybe it takes a while for them to 'break in'.

 

[jaysjetski]

That sounds like a bad idea to me

why?
its not going to harm the belt or stop anything from working as it is under so much tension.
i have been doing this for years on all my cars.
i used to do it when servicing cars when i worked for brunel ford.

 

[Damo_Sport]

wd40 eats rubber you pleb!!!!

 

[Tom@JMS]

wd40 eats rubber you pleb!!!!

Doesn't exactly aid belt traction either.

 

[Damo_Sport]

Doesn't exactly aid belt traction either.

exaclty!!

edit :

i heard someone used a bit of talcon powder once.

 

[sideways danny]

cold is probably getting to the battery. I'd expect it to get worse over the winter

 

[jaysjetski]

wd40 eats rubber you pleb!!!!

perhaps you should get your facts right!

http://www.wd40.co.uk/media/images/a/8/LIST_OF_2_000_USES.pdf

just a few taken from the wd40 website

3. TRANSPORT
CARS ~ EXTERIOR​

• ​

Prevents rust on side trim​

• ​

Lubricates auto hood latch​

• ​

Stops squeak in alternator pulley​

• ​

Stops squeaks caused by brake cable rubbing against chassis​

• ​

Eliminates squeak from fan belt​

• ​

Lubricates stainless steel hood latches​

• ​

Lubricates convertible top gears​

• ​

Lubricates rear shock absorbers​

• ​

Cleans and protects windscreen wiper blades​

and less of the pleb!!!! it aint needed!!!!!​

 

[Damo_Sport]

it does eat rubber though

 

[jaysjetski]

it does eat rubber though

ok so you ask WD40 why they say it can be used on 2000 items/products alot of them being made of rubber such as hoses, wires, fan belts, door seal, exhaust hangers etc etc

 

[Damo_Sport]

not really bothered cause it does

 

[jaysjetski]

not really bothered cause it does

lol. lol. lol

back to the topic, you could use wd40 to stop/help the squeek.

 

[f0xy]

Mine has had an annoying squeel recently, for the first 10-15 mins of driving or so. I thought it was the box at first, as it only seemed to do it when pulling away, but it does it on idle and when being revved now.

I dont have an AUX setup like normal, just alternator/waterpump. The waterpump was replaced 10k ago too, although I think it has to be the waterpump bearing, or a cambelt idler/tensioner thats causing it..

 

[mgoode180566]

possibly clutch release bearing

 

[caister]

cold is probably getting to the battery. I'd expect it to get worse over the winter

What effect does the battery have on this noise?

 

[Fred@BTM]

weird one, it had new everything bar the PAS pump (2nd hand)

 

[sideways danny]

What effect does the battery have on this noise?

if the battery has started to get weak (and the cold will highlight this) then the alternator will be under extra electircal load just after startup. This can cause a little belt slip

 

[Sym0n]

Same happening on my Ph1.

Fred replaced the full Aux kit and PAS pump a month or so ago. Water pump was replaced a few thousand miles previously to that and the battery is holding good charge, even after it's stood over night. As above it first started when the damp weather started and so I'm tempted to think that could be a factor along with the lack of arch liner on O/S.

Either way it's f**king annoying as f**k, but thankfully f**ks off after 5-10 minutes of driving.

 

[Aluco]

Mine's doing this, haven't had my belts replaced yet. They're not due till may but think I'll get them done in jan/feb.

Could it be a pulley making the noise ?

 

[Sym0n]

Bottom pulley possibly. Damp in the bearing?

As you can tell from my ramblings this is a highly technical diagnosis lol.

 

[Aluco]

That was what I was thinking, pulleys don't get changed with the belts do they. Hmm.

 

[caister]

weird one, it had new everything bar the PAS pump (2nd hand)

Definately odd. Doesn't do it every morning either only when its cold or damp. May have exagerated how long it does it for as well as its probably only half a second straight after the car fires.

 

[Aluco]

Mine only squeaks for about 10 seconds after I start it then stops.

 

[Sym0n]

That was what I was thinking, pulleys don't get changed with the belts do they. Hmm.

IIRC the bottom pulley is part of the aux kit along with the tensioner belt.

 

[Aluco]

O really ? decent

 

[cliosportap]

würth silicone spray may help

 

[Gaz85]

My cup started doing this about a month or so after a cam and aux change because the aux belt on the cup is manual tightening it had came slightly slack, went back and got it tightened back up and its not squealing anymore.