So, I've done around 15,000 since new clutch, csc / dmf, etc was fitted and bled it again after a clutch master cylinder change and car has been sweet for last 15,000. Jumps in this morning to pedal travelling halfway down and biting right at the floor. So basically drove it 30 miles using the...

Vauxhall Astra H (Mk5) 2006 1.6 Petrol - Twinport Z16XEP Hi, I come here tonight seeking help or two fronts. I have a P0170 engine running lean fault for the past 6 months. For the past few months the car really struggles in first gear (juddering). I have replaced air filter, oil and filter...

Edit: Thanks guys, for other visitors - it's not compatible :) Edit 2: Upon trying to replace the cylinder, I uncovered a myriad of other problems. I took the car into a mechanics and it turns out those cast cylinders ARE compatible. Tl;dr: Replacing brake cylinders, old one looks like this, I...

So I have felt that on low gears that there was a lack of power and with low revs it rumbles very heavy. Having a look around my engine I tried disconnecting the cylinder switches one by one whilst engine was running so I could hear if they worked.. 1 of the cylinders (second from left) made...