My car has started to make a weird sort of popping/clicking noise from the front driver side when I turn it at slow speeds even at a dead stop. Then if i accelerated some what hard theres a definite pop from the left front. My guess is the CV joint is bad or blown but I would like some opinions or maybe what to check for. It's an 06 STI. Thanks
Classic way to diagnose a busted CV is to drive in slow speed full-lock circles (parking lot, cul-de-sac etc). If you hear the popping/clicking, then yes, it's gone. As Jimmy says, a blown boot would let the grease out, causing a giant mess and speeding up the demise of the joint.
'03 Evo VIII : '90 Corrado G60 : '05 Legacy GT wagon : '11 Fiesta hatch : '77 Capri 2.8
When they die, the axle shaft itself is mainly kept in place by the cv cup. You'll loose all power to that wheel, the grease boot will tear and the big all ball bearings will go flying out.
If this happens, Stop the car IMMEDIATELY! No, the axle wont go whipping around taking out vital components, but you will fry your ring and pinion and spider gears "or your limited slip diff if so equipped" at highway speeds. Or worse, the sudden transfer of torque to the now free spinning axle could blow up your center diff.
For an STi its probably a different story, but for older Imprezas i makes more financial sense to search the big forums for used axles that people are selling from parted out cars, rather then trying to repair the boot / CV.
I found 2 axles for an 00-01 RS on RS25.com for $60 shipped.
And yeah the sound shouldnt matter if the car is warmed up or not. its goes: *Clickity-Clickity-Clickity-Clickity-Clickity* as you turn.