hi all, quick back story. 2008 xc70, 3.2, 150k. had the haldex serviced about a month ago, fluid/filter change. it was done by an indie who services all makes and model. i was just on a 500 mile round trip, got home and noticed a puddle of aoc fluid. took it back to the indie and he found his tech had pinched the o-ring on the filter cap. they replaced the o-ring and refilled the haldex. i suspect that the haldex was leaking the entire way home and ran extremely low on fluid.
got it home, checked vida, of course had a DEM code for the aoc pump. cleared the code and now i'm getting some drive cycles before i recheck vida this afternoon. of course, being september, can't really break the front wheels loose to see if the rear engages.
a couple of questions;
1) is the aoc pump running all the time, or only when the rear engages? thinking the pump may be smoked from low fluid?
2) i seem to have a clunk/ping now when in reverse and braking. it almost sounds like axle ping. could this be a symptom of a haldex issue?
thanks for any insight.
got it home, checked vida, of course had a DEM code for the aoc pump. cleared the code and now i'm getting some drive cycles before i recheck vida this afternoon. of course, being september, can't really break the front wheels loose to see if the rear engages.
a couple of questions;
1) is the aoc pump running all the time, or only when the rear engages? thinking the pump may be smoked from low fluid?
2) i seem to have a clunk/ping now when in reverse and braking. it almost sounds like axle ping. could this be a symptom of a haldex issue?
thanks for any insight.
