Intermittent Power Steering issue

rogerdodger · 08-09-2022, 10:36 AM

So I have an intermittent power steering issue in which when I first crank the car and drive it, there is no power steering. Then sometimes after a long drive, I get back in and crank it up and magically the power steering comes on and its good again. Then I cut the car off, and its gone again.

Here is what I have done so far:
1. Replaced the power steering pump
2. Replaced the pressure switch on the power steering pump.
3. Replaced the power steering control module behind the glovebox.

Not sure what is left that I can try? Anyone else run into this before. Wiring looks fine( 2012 370z sport). No leaks of power steering fluid. So weird how sometimes it comes on and then sometimes it totally shuts the power steering off and its hard as F to turn the car.

Averying · 08-09-2022, 10:47 AM

I’m assuming u don’t have any “whining” noises from the pump that would indicate low fluid?

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rogerdodger · 08-09-2022, 11:00 AM

No Whining noises I got all the air out from turning the wheel left to right after the Power Steering pump install. I'm Stumped on this issue .

SouthArk370Z · 08-09-2022, 11:26 AM

The FSM (link in my sig) may have some trouble-shooting tips.

BettyZ · 08-09-2022, 01:57 PM

Quote:

Originally Posted by rogerdodger

So I have an intermittent power steering issue in which when I first crank the car and drive it, there is no power steering. Then sometimes after a long drive, I get back in and crank it up and magically the power steering comes on and its good again. Then I cut the car off, and its gone again.

Here is what I have done so far:
1. Replaced the power steering pump
2. Replaced the pressure switch on the power steering pump.
3. Replaced the power steering control module behind the glovebox.

Not sure what is left that I can try? Anyone else run into this before. Wiring looks fine( 2012 370z sport). No leaks of power steering fluid. So weird how sometimes it comes on and then sometimes it totally shuts the power steering off and its hard as F to turn the car.

It sounds like there might be an intermittent short or loose connection somewhere. Are you throwing any codes?

If you've replaced the pump, switch, and control module... wiring's about all that's left. Unless you have damage or a pinch on the lines somewhere...

08-09-2022, 10:36 AM	#1 (permalink)
rogerdodger Base Member Join Date: Feb 2021 Location: Marietta, Georgia Posts: 14 Drives: 12 Nissan 370z M6 Rep Power: 4	Intermittent Power Steering issue So I have an intermittent power steering issue in which when I first crank the car and drive it, there is no power steering. Then sometimes after a long drive, I get back in and crank it up and magically the power steering comes on and its good again. Then I cut the car off, and its gone again. Here is what I have done so far: 1. Replaced the power steering pump 2. Replaced the pressure switch on the power steering pump. 3. Replaced the power steering control module behind the glovebox. Not sure what is left that I can try? Anyone else run into this before. Wiring looks fine( 2012 370z sport). No leaks of power steering fluid. So weird how sometimes it comes on and then sometimes it totally shuts the power steering off and its hard as F to turn the car.

08-09-2022, 10:47 AM	#2 (permalink)
Averying Enthusiast Member Join Date: May 2018 Location: Rhode Island Posts: 399 Drives: '09 370Z, '03 G35 Rep Power: 11063	I’m assuming u don’t have any “whining” noises from the pump that would indicate low fluid? Sent from my iPhone using Tapatalk __________________ 2009 Sport Touring \| Platinum Graphite \| GTM Stage 1 Supercharger \| BC BR Coilovers \| Hotchkis Swaybar \| Z1 FUCAs \| AME TM-02 Wheels \| Z1 2-piece Front Rotors \| Z1 Clutch & Flywheel \| Invidia Gemini Catback \| GTM Resonated Test Pipes

08-09-2022, 11:26 AM	#4 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324197	The FSM (link in my sig) may have some trouble-shooting tips. __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

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08-09-2022, 11:00 AM	#3 (permalink)
rogerdodger Base Member Join Date: Feb 2021 Location: Marietta, Georgia Posts: 14 Drives: 12 Nissan 370z M6 Rep Power: 4	No Whining noises I got all the air out from turning the wheel left to right after the Power Steering pump install. I'm Stumped on this issue .