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Old 26-07-2013   #16
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Re: Front right side brake sticking

That is intersting stuff Brian.
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Old 28-07-2013   #17
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Re: Front right side brake sticking

Hello our Croma eats brake discs and pads! the rear off side went to the metal on the way back from Cornwall . When I tried to fit a new set of pads the piston was stuck solid so off down to the shed with the caliper and with some grunt with the piston tool pushed the thing home,after a week it stuck again so new caliper.Back down to the shed and removed the piston and the seal .The piston is a loose fit in the cylinder and it look's like the seal has swelled .The front right needed a big lever to push it back and both front brakes squeek on and off with out brake application.My thought is this that it very much look's like the things have all ways been to tight I have never previously had to use WMD'S to push brake pistons back.If it takes any thing more than light pressure to push them in, it is the black square section piston seal that is the culprit just remove the thing and see how free the piston fits in the cylinder.
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Old 28-07-2013   #18
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Re: Front right side brake sticking

Hi,
Not got a Croma- so can't offer 1st hand experience,
but it's not uncommon for the seal to be formed in a way where it actually drags the piston back a little,
does the seal seem to follow the piston? or is the piston sliding through it,
out of interest do you know the calipers manufacturer..??,
I have had FIATS for YEARS ( without issue)-I suspect this MAY be a GM driven problem..!!,
Charlie
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Old 29-07-2013   #19
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Re: Front right side brake sticking

According to my manual the2.2 16v+ 1.9 8v have TEVES front caliper and TRW rear.
The 1.9 16v + the 2.4 20v haveTRW calipers front and back
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Old 29-07-2013   #20
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Re: Front right side brake sticking

Quote Originally Posted by tarquin1867 View Post
According to my manual the2.2 16v+ 1.9 8v have TEVES front caliper and TRW rear.
The 1.9 16v + the 2.4 20v haveTRW calipers front and back
And there I was thinking that all Carlitos did was save my beloved Hammers

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Old 29-07-2013   #21
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Re: Front right side brake sticking

Ah this would explain why there are no Croma owners @ Bu**erall Lane then, are you still subbing them with payments? You naughty rascals you!!
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Old 29-07-2013   #22
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Re: Front right side brake sticking

No, we've apparently paid up now.

Good to see that McCabe invested it wisely.....

I await Sean Beans march on Downing Street to get these calipers banned....
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Old 29-07-2013   #23
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Re: Front right side brake sticking

Ohh Yessss- the way they perform and the club is run it will probably turn out they succeed in banning calipers for hospital patients!!!
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Old 16-08-2013   #24
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Re: Front right side brake sticking

Right, thrusting things back on topic - pay attention at the back...

I did go for a drive the other day and got the familiar eee-eee-eee ricocheting off the central barrier while overtaking on a dual carriageway. I found that jabbing the brake (hard) had no effect on it - silence while actually braking, then squeaking again after.

So I put my theory to the test and pulled off into the next layby. I did about 10mph in reverse and walloped the brake pedal. Then continued in complete silence for another 80 miles, and it's been fine ever since.

This is pointing towards my theory of it being the brake pad positioning springs. Presumably the pads get continually pushed in the direction of the spinning disks and jammed against something in that direction. Reversing obviously pulls them back off. All evidence points to fitting kits.

I've finally got my full set of brake pads and fitting kits delivered today (Mintex part numbers previously mentioned on this thread). Here are some pictures - all filenames are the Mintex part numbers. All this lot will be fitted next week, hopefully then all will be well - we'll see.

This is the full complement of all parts recommended for a 1.9D 16v by Mintex themselves.

Thoughts from anyone who knows more about brakes than me (nothing) are very welcome.
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Old 16-08-2013   #25
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Re: Front right side brake sticking

Doofer,
I really hope it works because the noise from mine is driving me up the wall. Fingers and everything else crossed.
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Old 16-08-2013   #26
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Re: Front right side brake sticking

I'd be very interested in whether the reverse-braking works for you next time you get it - it's well worth a try as an emergency measure/diagnostic. Just tell your passengers to put their heads back first. You don't have to go fast - walking pace is plenty, but brake with a full 100% stomp. It was just fast enough to make the back end rise up as it stopped.
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Old 16-08-2013   #27
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Re: Front right side brake sticking

I'll give it a try tomorrow and post back with the result.
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Old 17-08-2013   #28
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Re: Front right side brake sticking

...or perhaps it was the front that rose up, thinking about it. One end went up, the other down, quite a lot. I don't think the suspension is designed for emergency stops backwards.
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Old 20-08-2013   #29
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Re: Front right side brake sticking

I've got my set of brake pads too, from Textar, they came with the fixing kit included like most of them come. The sticking brake can't be from the the fixing kit and I can bet on it, most likely its the ABS valve on that side or the software as the issue its very common. Fixing kits are changed every time we change the brake pads. I had changed the caliper, the hose, the disc and the brake pads with the fixing kits and still have the same problem. That's why I'm betting on the software which controls the ABS or the ABS module itself.

And if you want to get rid of the squeaky noise, you have to apply some copper or ceramic grease on the back of the brake pads, where they come in contact with the piston. This should solve it, if not, the brake pads are too hard, this depends on the make, usually the low quality ones are hard and they do squeak no matter what.
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Old 20-08-2013   #30
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Re: Front right side brake sticking

Thanks for the info, not the news I wanted. But we'll see what happens after the new pads and fitting kit - ruling the obvious/cheap things out first.

I'd doubt it's a software issue. I'd assume it's a Bosch system, and I'd have thought it would be common to a number of cars. I'm sure we'd know if everyone's car did it.

The fact it doesn't do it all the time points to something sticking, rather than something intentionally misbehaving. Perhaps just a moving part within something that needs a dab of grease more often than once every six years (since the car was built).
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