Car problems - is i...
 

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Car problems - is it my clutch or gearbox thats failed??

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Driving along the car loses all drive and makes a horrible coffee grinder type noise. Had to tow it home.

I can select all gears fine, clutch goes up and down fine, but as soon as I raise the clutch and try and pull away there's a horrible grinding / rattling noise and no drive.

Same in all gears, including reverse.

It's a Toyota IQ. It's been crunching changing into 3rd gear for a year or so (assume syncro had gone, had similar on a previous Toyota but drove it fine for another 5 years) and recently making a whine with engine revs (I'd assumed alternator, but maybe it was a clutch bearing?!)

Any way of telling whats failed? Obviously getting it to a garage is quite tricky but could try a mobile mechanic.

 
Posted : 05/10/2022 10:43 am
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Do you have Home Rescue?

Call them and get it towed to a garage if you can. But don't say it's been trouble for a year! 🙂

"It's just gone mate, honest".

 
Posted : 05/10/2022 10:46 am
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It sounds like part of the clutch has broken/disintegrated and is preventing engagement.

The only way to tell what has failed is to get it on a ramp and start stripping it down. You'd have to start with the clutch anyway so fingers crossed it's that!

What's the age/mileage of the IQ? Toyota will honour the warranty out to 10 years if you've kept the servicing up with them. That won't cover a clutch but it should cover the worst-case of a gearbox replacement.

 
Posted : 05/10/2022 11:12 am
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I'm beginning to think it's the clutch after reading around. 2009, 100k miles ish so definitely out of warranty and have no AA/RAC or anything.

I wouldn't normally consider repairing, but there's very few cheap decent cars around at the moment and it's very cheap to run when it's working. Might get someone around to change the clutch and maybe get the gearbox refurbed while it's out.

 
Posted : 05/10/2022 11:19 am
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Sounds like clutch has died pretty dramatically

 
Posted : 05/10/2022 11:28 am
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Snapped driveshaft

 
Posted : 05/10/2022 11:33 am
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I'd guess clutch. I had something very similar once on a Clio. The centre carrier of the clutch plate had separated from the backing plate.

 
Posted : 05/10/2022 11:40 am
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The only way to find out is to inspect it and see. It could be a broken driveshaft, it could be a knackered clutch, and it's not impossible that the gearbox has failed (or the clutch has failed and damaged the gearbox). Impossible to diagnose on the internet, it needs to be disassembled and inspected to see how bad the damage is.

 
Posted : 05/10/2022 12:11 pm
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Clutch

 
Posted : 05/10/2022 12:21 pm
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It could also be something as annoying as the retaining clip on the end of a CV joint not being seated properly allowing the stub axle to pull out of the hub resulting in lose of drive and clangy bangy noise's. It's handbrake on, wheels chocked and someone you trust in the driver's seat whilst you look underneath it. Or in the IQ's case (my SIL has one) - tow it to a garage and let them sort it.

 
Posted : 05/10/2022 12:38 pm
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I wouldn’t normally consider repairing, but there’s very few cheap decent cars

Financially it's probably worth it even if the car is worth less, invariably you'd spend more on a replacement car and potentially risk taking on someone else's worries of impending doom.

You could drain the gearbox oil and check it for metal particles, also I think you can sometimes see inside the clutch housing where the linkages (fork?) goes in.

 
Posted : 05/10/2022 12:41 pm
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It could be a driveshaft fail, but more likely the clutch has failed, possibly including the dual mass flywheel. I had experience with my VW van when the clutch started to fail; initially thought it was the slave cylinder, but the root cause was clutch wear and the DMF was in poor condition with significant free movement.

 
Posted : 05/10/2022 12:45 pm
 StuF
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do the wheels rotate? When my gearbox went on my 306 (middle lane of m25 at night), no drive and lots of rattling, I had to coast to the hard shoulder. They had to drag it onto the transporter as the wheels had locked up as the rattling bits had then jammed in the gears

 
Posted : 05/10/2022 1:10 pm
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Cv joint separation.
If you can, javk up the car. Look at the outboard cv joints. Any weird shapes that aren't concentric and chances are the cage has separated

 
Posted : 05/10/2022 1:19 pm
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Iq probably shares the same pants clutch as the MK1 Aygo ,c1 and 107 . Coupled with people who think it can pull in any gear.

The clutch is not much larger than a Compact disk.

But your symptoms are the same as my old man's when the rear cluster shaft bearing in the box disintegrated and the axle dropped so they couldn't mesh.

Yours might be mainshaft bearings.

Godspeed to the garage because there's not much room or visibility working on an IQ

 
Posted : 05/10/2022 1:19 pm
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Thrust bearing.

 
Posted : 05/10/2022 2:02 pm

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