Car Stalls on full lock some times........??

[r0dd3rz]

hi chaps n chapet's, lol, i have a 172 and sumtimes when i full lock it, it stalls, this mostly happens when parking in a bay, but it can also do it when driving. i notice that the revs can drop, but it also goes higher at sum points. any help would be most appreciated. thx.

 

[Henry]

it's a power steering problem.
are you losing any fluid that you've noticed?
if not, there's apparently an electrical sensor that costs around £50 and could well be at fault. i don't fully understand but am guessing that it regulates the revs at idle to compensate for the load that the PAS pump draws at full lock