POWER STEERING PUMP SHAFT BROKE INSIDE PUMP

2000 GMC Yukon

Tiny

upsman

January, 3, 2012 AT 7:49 AM

Power steering pump shaft broke inside pump, replaced pump twice bled it both times and I still have no power steering!

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3 Answers

Tiny

caradiodoc

January, 3, 2012 AT 9:49 AM

Gonna sound stupid, but I've seen this happen more than once. Remove the return hose from the reservoir and check for a plastic dust cap on the pipe. They're often painted and get overlooked.

If that doesn't solve it, remove the high pressure hose from the gear box and run the engine briefly to see if fluid runs out. If it does, reconnect it and remove the return hose from the reservoir and see if fluid runs out when the engine is running AND you turn the steering wheel. If it doesn't, be sure the serpentine belt is routed around the pump correctly. The ribbed side goes around the pulley.

Tiny

upsman

January, 3, 2012 AT 8:05 PM

The pressure side has lots of fluid coming out, the return line has a small of fluid flow!

Tiny

caradiodoc

January, 3, 2012 AT 11:52 PM

The return line will only flow fluid when the steering wheel is turning, not when it is standing still in any position. If that isn't happening, the control valve has broken inside the steering gear box or something has blocked the fluid port in the gear box.

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