Expert: John Campbell - 8/27/2006

Question
Hi John,

I would be changing my rotors and brake pads this coming weekend for my 2000 Mazda MPV LX.  My question is that, can I just use a C-clam in pushing back the caliper pistons in installing new brake pads?  In doing so, is there anyway that will damage my brake cylinder and/or the ABS.

I would be also changing my Automatic Transmission Fluid and I am just wondering if my van has a filter or none?

Thanks very much for your time and looking forward to hear from you soon.

Victor (Toronto)  

Answer
You can purchase a caliper wrench for around $20 from an auto parts store if it is needed. It is a cube with 3/8" ratchet holes on each side and different shaped pins on each face. The compression of your caliper will not damage the ABS or cylinders.
A repair manual will give you any procedural details you need. I do not remember if there are any particular special procedures used for retracting the pistons. It has been a while since I replaced the pads on an MPV of that vintage.

The van has a filter, but the changing of the transmission fluid should be done at a repair shop as it requires the use of a Transmission Flushing machine. You cannot change the fluid completely by any other method.
The fluid lost in a filter change is only around 1.5 - 2 quarts in an 8-12 quart system. Not really all that effective in maintaining the vehicle. The whole process is usually around $150 and will last it another 80,000 miles.

Regards,

John