2007 Chrysler 300c SRT8 Power Steering Loss after change of Power steering fluid reservoir and change of coolant reservoir tank done. Reinstalled old parts back but still no power steering. Replaced Power Steering rack as well as Power steering Pump but still no return of Power Steering. If car is jacked up then Power steering feels fine but as soon as lowered back to ground no power steering. I have run out of ideas and really need help.
Chirag
Did the rack get primed after the parts were replaced i.e. full lock left and right slowly to get all the air out of the rack hydraulics?
Are the hoses to the pump and the rack the right way around? Seems odd that a new pump and rack didn't work.
All seems fine and have replaced power steering pump for the srt8 and bled and replaced fluid but no joy. When car is sitting on jack off ground the power steering is light as feather but as soon as its down on ground its a complete loss of power steering. Any ideas and or suggestions ?
To bleed it properly the engine either has to be cranking or running while you turn the steering wheel lock to lock - was that done correctly?
Very strange. This usually only happens with a new pump that is dry, but with any head pressure (ie tank above pump/pump wet immediately) usually sorts itself.
"Light steering with wheels off ground" is normal with no power steer and no load.
I would have said what is said above, ie lock to lock to bleed. I have rebuilt racks on cars so system completely empty, and they squawk a lot as get air out, but usually purge it.
You could have an air lock, unlikely, but possible. A number of ways to check. Initially, top up and leave over night/allow gravity to seep in, maybe help.
We had a pump running on a 5 inch gun and the guys are watching the shaft spin, NO output pressure. They suspected the pump, I suspected it was full of air. So I cracked the output union, nothing.......... then header level dropped, fluid runs out. Started up - perfect.
If it were me, I would leave it for a day to settle. Then I would turn lock to lock (engine running of course). If ANY squawk at all (apart from full lock relief valve lift) keep doing it until it stops.
If no joy, I would find an easy access union downstream from pump. Crack while not running/see if get fluid/watch tank level. Then try . If that doesn't fix, VERY CAREFULLY crack a union very slightly while running, see if that works.
That is the last resort if all else fails.
But that routine works on a gun mount that has far more hydraulics than power steering does.........
"Light steering with wheels off ground" is normal with no power steer and no load.
I would have said what is said above, ie lock to lock to bleed. I have rebuilt racks on cars so system completely empty, and they squawk a lot as get air out, but usually purge it.
You could have an air lock, unlikely, but possible. A number of ways to check. Initially, top up and leave over night/allow gravity to seep in, maybe help.
We had a pump running on a 5 inch gun and the guys are watching the shaft spin, NO output pressure. They suspected the pump, I suspected it was full of air. So I cracked the output union, nothing.......... then header level dropped, fluid runs out. Started up - perfect.
If it were me, I would leave it for a day to settle. Then I would turn lock to lock (engine running of course). If ANY squawk at all (apart from full lock relief valve lift) keep doing it until it stops.
If no joy, I would find an easy access union downstream from pump. Crack while not running/see if get fluid/watch tank level. Then try . If that doesn't fix, VERY CAREFULLY crack a union very slightly while running, see if that works.
That is the last resort if all else fails.
But that routine works on a gun mount that has far more hydraulics than power steering does.........
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