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I think I'd be replacing the front flexi hoses as Martin says first as they're cheap and are likely due for renewal anyway. Then if that doesn't solve it, the master cylinder.
If it's definitely both sticking on I might be tempted to do the master cylinder at the same time as you've got to do a load of bleeding anyway.
Kirkynut
The underdog often starts the fight, and occasionally the upper dog deserves to win - Edgar Watson Howe.
Same issue started on my 05' car and I replaced both front callipers with a pair from Germany £58 ea. I can't remember the retailer but it was from eBay.
I remember laughing at myself, new callipers a performance mod...... well the car was quicker...... :laugh: :laugh: :laugh:
Check that you have clearance/free play between the brake pedal and master cylinder push rod.
Seen this problem many times where someone has over adjusted the push rod or the push rod lock nut has come loose.
Martin, thanks. From previous posts on here I also wondered about this, but as it affects both front brakes at the same time, I ruled this out. Also, when it clears itself, it clears both. It has never affected just one of the front brakes, so I was looking at something before the pipes separated.
RainerK, thanks for this. The pedal gets progressively harder up to the point that the brakes seize. If and when it clears itself, the pedal travel returns to normal, suggesting to me a gradual build-up of pressure each time I apply the brakes. I don't think that the pressure is building up without depressing the pedal, but I can't rule this out - I will try just using the handbrake for a run around some quiet roads and see if it happens without the brake pedal being depressed.
Thankyou CCBaxter. Someone on a previous post suggested changing the master cylinder, but I couldn't see that there was a way this could affect the front brakes without also applying pressure to the rear. There are 2 pipes coming from it, but on an exploded diagram I found, it names them as primary and secondary. They go to a connector/compensator/pressure differential valve (not sure which) and the 2 pipes coming out are then described as Front and Rear. I've got another one of these connectors on it's way and I'll have a close look at it and decide whether it's worth a try but if you say your Swift had a problem with just the front brakes seizing, I'll look at changing the master cylinder instead.
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