Engine squeal

REDAUXR6II · 23-10-2007, 10:49 AM

Hey All,

I have a problem with the XR6, every time I start the car I get a loud squeal, much like a stuffed fan belt, I have had the fan belt changed to eliminate that but the squeal remains.

Every time I turn on the aircon the noise dies down a little bit.

Would I be safe in assuming that I need my aircon re-gassed?

FGII-XR6 · 23-10-2007, 10:52 AM

you need the tensioner reco'd or replaced

REDAUXR6II · 23-10-2007, 10:54 AM

is that the belt tensioner?

james22 · 23-10-2007, 10:55 AM

Check your pulleys. Bearing are probably stuffed. Sounds like one of them may be on their way out. Tensioner pulley tends to be a bit of a culprit. Start your car, and (carefully) use a long screwdriver like a stethoscope to find where the noise is coming from.

james22 · 23-10-2007, 10:56 AM

Quote:

Originally Posted by REDAUXR6II

is that the belt tensioner?

Yes...

REDAUXR6II · 23-10-2007, 10:59 AM

Cheers, will check this arvo

What should tensioner pulley cost me to replace?

sly · 23-10-2007, 11:20 AM

Quote:

Originally Posted by REDAUXR6II

Hey All,

I have a problem with the XR6, every time I start the car I get a loud squeal, much like a stuffed fan belt, I have had the fan belt changed to eliminate that but the squeal remains.

Every time I turn on the aircon the noise dies down a little bit.

LOL exactly the same on my Courier once, until one day the Mrs rings me complaining that it made a funny noise and is down on power. Got home from work, lifted the bonnet & found 2 plug leads sheared in half and no A/C belt.

Looked like the bearings or clutch in the A/C compressor were stuffed & the belt chafed on the pulley until it snapped... taking out the plug leads on the way!

If your tensioner & idler pulleys check out OK, that'd be the next place I'd look.

REDAUXR6II · 23-10-2007, 11:26 AM

just to clear something up, are the tensioner pulleys and the idler pulleys one in the same?

GK · 23-10-2007, 11:35 AM

Quote:

Originally Posted by james22

Check your pulleys. Bearing are probably stuffed. Sounds like one of them may be on their way out. Tensioner pulley tends to be a bit of a culprit. Start your car, and (carefully) use a long screwdriver like a stethoscope to find where the noise is coming from.

May I add my caution to be careful to Jame's?

Think carefully before you decide where you're going to place the screwdriver and where moving parts will be in relation to both the screwdriver and your hair, clothing and any jewellery you may be wearing.

It's soooooo easy to get focussed on isolating a noise etc, that you temporarily lose the safety focus.

All the best with it.

GK

REDAUXR6II · 23-10-2007, 11:44 AM

thanks,

So are the tensioner and idler pulleys the same pulleys? I ask cause I have had the idler pulleys changed.

NC1183 · 23-10-2007, 05:06 PM

The tensioner and idler pully are on the tensioner unit, i got both pullies for about $50, or could get the whole unit inc. pullies for a couple of hundred

wazza69 · 23-10-2007, 05:40 PM

I have the same problem, i thought, until i got all pulleys replaced and still does it - had a listen and it seems to be coming from inside the timing cover... any ideas what it could be?

DoreSlamR · 23-10-2007, 10:16 PM

Quote:

Originally Posted by wazza69

I have the same problem, i thought, until i got all pulleys replaced and still does it - had a listen and it seems to be coming from inside the timing cover... any ideas what it could be?

mate, is your car a V8? if it is i had the EXACT same problem, to make sure its not a pulley, take the serpantine belt off and start the car (only do it for a short while) if the squeek is still there then you got what i had.

I will quote what is written on my bill from ford:

Attend to squeak in front of motor. Diagnostic traced to CMP Sensor shaft squeaking, removed cleaned & lubed. refit, checked OK.

They told me to monitor it, if it returns then they say i need to replace the CMP sensor unit, and they aren't cheap.

hope this helps you out.

FGII-XR6 · 23-10-2007, 10:23 PM

Quote:

Originally Posted by DoreSlamR

mate, is your car a V8?

it is an XR6

sly · 23-10-2007, 11:01 PM

CMP (Cam position sensor) may be similar in the 6 to the V8. Up to & including the AU, the CMP mounts on a dummy shaft fitted where the camshaft was on the old 250. I wouldn't rule it out.