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Electric power steering fluid?


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I've searched the web but have not found the information I am looking for. Is the hyrdrolic fluid for the 2014+ silverado/sierra electric steering serviceable or does it even have fluid? My other vehicle is a 2012 Jeep Grand Cherokee and it has electric power steering but also has a reservoir that states on the cap "only use hyrdrolic fluid designed for electric power steering". My Ford work truck also has electric power steering and also has a power steering fluid reservoir. So what is up with our trucks, I assume it also has hydrolic fluid but without an access cap kind of like Ford transmissions. What got me thinking about it is that my Jeep's fluid kept dropping during the first year and I or the dealership had to add to it. For my Jeep build year it was not rare and was told it was air bubbles working their way out and lowering the fluid but who knows.

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GM does not use a hydro-electric system like Chrysler. The Chrysler system, best I can tell and describe it, is an electric motor driven hydraulic pump. The engine does not directly drive the pump like in a typical hydraulic system.

 

GM uses a belt driven electric power steering system.

 

The power steering control module and motor assembly is attached to the base of the steering gear housing and applies power assist directly to the rack with a belt drive and a ball nut mechanism to maneuver the rack laterally depending on the direction the steering wheel is turned.

 

 

No hydraulics involved.

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Thanks guys. So I guess my Ford work truck is the same as what Chrysler uses, electric motor powering the power steering pump (no belt to drive it on the engine). Is GM the only one doing this on trucks?

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Thanks guys. So I guess my Ford work truck is the same as what Chrysler uses, electric motor powering the power steering pump (no belt to drive it on the engine). Is GM the only one doing this on trucks?

 

All GM with EPS are straight electric motor with belt drive. I think they use ZF and Nexteer (formerly Saginaw Steering Division of GM, then Delphi Steering, now Nexteer and owned by GM) as their main suppliers.

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Best part is I took my truck in for an oil change. They recommended that I do the 40,000 KM multi-point inspection. They called me up and recommended that I change my coolant (GM says 240,000 KM which is a bit long but still) as well power steering fluid as they checked it and it was dirty. I thought that is weird I swore that somewhere I read (owners manual) that it does not have power steering fluid. They kept insisting that I change the fluid. Lets just say I was pretty pissed with the service advisor and after I cooled down, I called the service manager the next day. Lets just say he was not pleased and refunded me the multi-point inspection, got someone else to redo the inspection for free and then suspended the mechanic that wrote in on the file.

 

Better yet the advisor has called me back twice asking me if I wanted to book an appointment to get the fluids changed. arg.

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That's a good one but unfortunately I think it is all too common at dealerships, main reason I try and do my own work on my vehicles. The first week we owned our Jeep I started going over and getting familiar with it and noticed the power steering fluid was low, I also saw the warning on the cap to use only fluid designed for electric power steering. I took it back to the dealer and watched the kid through the window pour in regular power Mopar power steering fluid. I banged on the glass and told him to stop and told the service manager that that fluid was incorrect. He just backed the kid up and said it would be fine. I kept arguing till they asked me to leave, stopped by another dodge dealership and bought the correct fluid and over the next few weeks I used a turkey baster to take out the old and put in the right stuff. That was 3.5 years and 50k miles ago and no problem with it but that is another reason I stay away from dealership mechanics.

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Also, I know people like to complain about recalls on the 2014 silverado/sierra but that Jeep has made me use alot of vacation time over the past few years for the amount of recalls where stuff had to be replaced. Never had a problem with it but makes me wonder why buy any thing new any more.

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I took it back to the dealer and watched the kid through the window pour in regular power Mopar power steering fluid. I banged on the glass and told him to stop and told the service manager that that fluid was incorrect. He just backed the kid up and said it would be fine. I kept arguing till they asked me to leave, stopped by another dodge dealership and bought the correct fluid and over the next few weeks I used a turkey baster to take out the old and put in the right stuff. That was 3.5 years and 50k miles ago and no problem with it but that is another reason I stay away from dealership mechanics.

 

I'd have started to look for a new dealer at that point lol.

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Also, I know people like to complain about recalls on the 2014 silverado/sierra but that Jeep has made me use alot of vacation time over the past few years for the amount of recalls where stuff had to be replaced. Never had a problem with it but makes me wonder why buy any thing new any more.

 

"Why buy anything new" because we only live once (period).

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