Common faults on E-spec mx6's
Early models:
Distributor failure. Can get rebuilt ones from a place in melbourne from 400$ or So.
Caliper leakage.
The rear calipers can develop leaks. I had this problem myself. After having the calipers reconditioned, I had them leak again. Only good solution for this is to get calipers 2nd hand from a wreckers, off a 95-97 model. Cost me about 450$ for them. They are a direct fit replacement.
HLA noise/Friction gear.
The top of the engine can develop a loud ticking/tapping noise. This will probably be either the HLA's( a glorified lifter) or the Friction Gear. HLA's are 30$ or so each and theres 24 of them. Friction gears are about 50$. The labour is the killer for this problem. The noise could also be the Timing belt tensioner Arm
Common complaints on HLAs link:
http://www.australdistributing.com.a...adjusters.html
VCG leaks
The valve cover gaskets can leak. To replace them the Intake manifold has to come off ( for the back on at least).