Overfill power steering fluid

Asked by Dec 22, 2017 at 12:43 AM

Question type: Maintenance & Repair

I didn't but why does it specify not to overfill
on the power steering reservoir what would
happen if you do

3 Answers


Fluid heats up and expands and may be expelled from the reservoir through the vent. Leaking fluid could get onto the belts causing issues and fluid could get on the exhaust causing a possible fire hazard.

1 people found this helpful.

Too much fluid makes the pump build up too much pressure.If not releaved through vent holes,The "weakest spot" will pop.Probably a hose. Get a dollar store turkey baster and remove some fluid. Or do the old-piece of garden hose with your thumb over it trick

1 people found this helpful.

Too much fluid has nothing to do with too much pressure unless it is absolutely full with no air space. A power steering pump is only a simple hydraulic pump that has a high pressure outlet and a return line that returns fluid to the un-pressurized reservoir. The reservoir applies zero pressure to the intake side of the pressure pump. I agree that a turkey baster is the way to go for removing excess fluid.

3 people found this helpful.

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