Is it ok to use Lucas poer steering stop leaks in a vehicle with electric power steering pump or is it too viscous and burn out the motor?
Any such product is going to be a temporary bandaid if it works at all. You could try ATP AT-205 Reseal which Scotty has talked about in his videos. The product purports to rejuvenate rubber seals. For a power steering system you'd only add a few ounces and it would not materially affect viscosity.
https://www.amazon.com/ATP-AT-205-Re-Seal-Stops-Bottle/dp/B000NVW1LM
https://www.youtube.com/watch?v=LgctUEfEE14
Does this exist?
Yes, electric power steering pumps are found in some Fords, Volvos, Mazdas, probably others. Here's a video showing an electric power steering pump from a Mazda 3 being rebuilt:
https://www.youtube.com/watch?v=el7xQBz1X6E
Amazing. How did I know it would be a Ford.
No doubt those high-tech marvels are much more expensive than a poor dumb old belt-driven pump.
What car is this question about? Year/make/model?
Just based off of your question if you are asking about an electric power steering system (like those on newer cars) those systems don't use fluid so there's nothing to leak in the first place.
I think he's asking about systems that are hydraulic but have an electric pump instead of engine-driven.
Yeah that makes sense. I wasn't sure either but just thought it was about an electric power steering system given he hadn't included any info about the car in question. In this case I'll edit my answer to say "you can use it but it's not going to fix the underlying reason for the leak. So my suggestion would be to actually fix the issue."
I think he's asking about systems that are hydraulic but have an electric pump instead of engine-driven.
Does this exist?
I think this is what he is referring to from my understanding: "
In electro-hydraulic power steering, an electric motor drives the pump...."
@fjcruiser2014
Yes I understand what it means, and how hypothetically a hydraulic power steering pump COULD be electric.
I'm asking does anybody know of an actual car model that does this? I don't understand why anybody would make such a ridiculously complicated system.
So you have an engine with rotating output (already perfect for a pump). But you use it to spin a generator and convert the rotational to electrical energy. Then you route the electricity through wires to a motor, to convert the electricity back into rotation. Then you use the rotation to drive a pump that converts the rotation into hydraulic pressure which then turns it back into rotating mechanical force to the steering shaft. Keeping in mind that there are energy losses at every conversion step.
Consider electric cars, where your primary source of energy (batteries) is electricity, so it makes sense to design electric power steering. There are less steps, and less losses along the way. BUT ... in this case the electricity simply drives an electric steering assist motor. There are no hydraulics.
So does this abomination you speak of exist in real life, or is everyone just being hypothetical here?
I guess my bad for not including the link to the whole thing which also stated what cars actually have it. But yes I understand it's a complex system that just increases the repair costs and things to break but some automakers just want to go complex.
Yes. I have a 2019 Dodge Charger Police Pursuit with a 5.7 liter Hemi, AWD. The power steering is a hydraulic and electric, and I have always put CHF11 S fluid in it and just recently put Lucas Power Steering Stop Leak in it. However I did not empty the reservoir first due to the viscosity of the product; I put maybe half and half in it and only temporarily.
Yes. I have a 2019 Dodge Charger Police Pursuit with a 5.7 liter Hemi, AWD. The power steering is a hydraulic and electric, and I have always put CHF11 S fluid in it and just recently put Lucas Power Steering Stop Leak in it. However I did not empty the reservoir first due to the viscosity of the product; I put maybe half and half in it and only temporarily.