New Electric Hydraulic Power Steering Pump (EHPS)

[dsatchell]

A lot of the threads that discuss replacing the standard power steering with an electric hydraulic power steering pump almost always use one of three models: the 91-95 MR2 (no attached reservoir); the 2000-200? MR2 (with an attached reservoir); or one that has been imported from Europe.

The problem is that the MR2 versions are getting hard to find and can be expensive even used and having a part that is only available as an imported item from Europe is plain scary.

A new alternative that I have recently found is that the 2011 3.6L Dodge Durango and the 2012 3.6L Jeeps now come with EHPS. I can't find any other info about them other than a couple of pics in the Jeep. They are a little expensive but not more so than the EU models and they are practically brand new and they should be available for quite some time.

Has anyone got any additional info?

David.

[99gst_racer]

Please post the pictures that you have. I've seen a few stateside cars that come with EHPS from the factory, but they had the system built into the rack and column, so it made it impractical to use on a different vehicle as a universal system.

[greengoblin]

What Paul said.

[1990AWD]

You really didn't need to post in half a dozen other threads before doing your research.

[greengoblin]

The mazda 5 uses a EPEP system too. However they are not cheap and I didn't know anything about them. Well that is not totally true. I have a 5 and they work great. I just didnt do any research since the clio pump was cheaper and is proven to work with the setup I'm going to use.

2010 MAZDA 5 TOURING Power Steering Pump

[Ludachris]

Availability and pricing will probably be similar to the MR2 for a while until more Durangos hit the salvage yard. Pricing new is pretty steep. But it might be nice to have another option. Wish the Renault was sold here so we can get the pump that Andrew Brilliant went with.

[ec17pse]

Originally Posted by Ludachris

Availability and pricing will probably be similar to the MR2 for a while until more Durangos hit the salvage yard. Pricing new is pretty steep. But it might be nice to have another option. Wish the Renault was sold here so we can get the pump that Andrew Brilliant went with.

What renault was it from? As i can get parts from them very easy, i use to own a renault clio williams, they are always being scraped here. Let me know and i might be able to locate some of them.

[dsatchell]

this is the only pic I have been able to find and from what I have read so far they are saying that it will only be in the 3.6L V6

the Renault is the Clio from 2000+ with the reservoir on top...there is a pic of it in one of the other threads

[greengoblin]

Renault Clio and Kangoo models from 01/98 - 07/05

[Ludachris]

Originally Posted by ec17pse

What renault was it from? As i can get parts from them very easy, i use to own a renault clio williams, they are always being scraped here. Let me know and i might be able to locate some of them.

Oh please do let us know. I'm sure there would be several here who would want one.

[dsatchell]

I just ordered one of the 2011 Jeep Grand Cherokee Power Steering Pumps so I will post some images when it arrives.

The think I'm concerned about with the Renault pump is the reservoir getting damaged or the pump going out and being unable to get a replacement for several weeks.

[99gst_racer]

Originally Posted by dsatchell

I just ordered one of the 2011 Jeep Grand Cherokee Power Steering Pumps so I will post some images when it arrives.

How much did that set you back?

[ed1380]

Anyone thought of fitting an mkv electric steering rack?

[greengoblin]

Switching racks opens up a whole lot of other issues. I toyed around with the thought of using an evo rack and scrapped that idea because of all the cross member modification.

Also how many wires does the jeep unit use? Amps? details details details.

[ec17pse]

Originally Posted by greengoblin

Renault Clio and Kangoo models from 01/98 - 07/05

So im looking from 1998 - 2005 models then correct? And the res is on top?

Originally Posted by Ludachris

Oh please do let us know. I'm sure there would be several here who would want one.

I will get looking for you next week, and will post here with what i find and prices etc
And just to confirm its just the pump im looking for right no lines or wiring?

[greengoblin]

Originally Posted by ec17pse

So im looking from 1998 - 2005 models then correct? And the res is on top?



I will get looking for you next week, and will post here with what i find and prices etc
And just to confirm its just the pump im looking for right no lines or wiring?

1998 - 2005
This one. I would love to have the OEM pig tail(off the harness) and I'm sure other would like it too.

It should look like this:

[ec17pse]

Originally Posted by greengoblin

1998 - 2005
This one. I would love to have the OEM pig tail(off the harness) and I'm sure other would like it too.

It should look like this:

I shall use this pic as reference, will it need to come with the ecu for it or just on its own? I shall try find them with wireing then so its easier to wire in,

Well i just had a basic search and wow get your wallets out guys, cheapest ive found is about £200 or $300 so i think im going to have to phone akd visit some scrap yards and get something a little cheaper lol, what kind of price range am i going to be looking at here? Is 300 bucks to expensive?

I will keep looking and see what i can find out for you all

[dsatchell]

Originally Posted by 99gst_racer

How much did that set you back?

This is what I ordered online:
Name : 2011 Jeep Grand Cherokee Power Steering Pump
Description : 3.6L, ELEC, P52124998AF, 3.6, Automatic Transmission, 4X4
Price : $126
Condition : 5 stars

For that price it was too good to pass up even though I'm not 100% positive that it is the correct part. I also don't see how I could be wrong but the problem is that I called a part locator about a 2012 pump and was quoted $600.

What I don't have is any details about connectors, wiring, specifications, layout, or anything else.

Don't forget that anything that comes from the EU will have around $75 in shipping.

[ec17pse]

Originally Posted by dsatchell

This is what I ordered online:
Name : 2011 Jeep Grand Cherokee Power Steering Pump
Description : 3.6L, ELEC, P52124998AF, 3.6, Automatic Transmission, 4X4
Price : $126
Condition : 5 stars

For that price it was too good to pass up even though I'm not 100% positive that it is the correct part. I also don't see how I could be wrong but the problem is that I called a part locator about a 2012 pump and was quoted $600.

What I don't have is any details about connectors, wiring, specifications, layout, or anything else.

Don't forget that anything that comes from the EU will have around $75 in shipping.

Thats a good price if it works, i found a system thats close the clios from a vauxhall astra ( the vauxhall brand is gm and sells under the buick regal and also saturn something.....) In the US that is, shipping from the uk to the USA is $50 for priotity 3-6 days and eco is $25 if i remember but will check again and thats 5-9 days, you can check here Parcel Delivery Services - UK and International - Parcelforce Worldwide

. This is the vauxhall unit i have found, looks close the clio and kangoo unit,

[miguelmcv]

Originally Posted by dsatchell

This is what I ordered online:
Name : 2011 Jeep Grand Cherokee Power Steering Pump
Description : 3.6L, ELEC, P52124998AF, 3.6, Automatic Transmission, 4X4
Price : $126
Condition : 5 stars

For that price it was too good to pass up even though I'm not 100% positive that it is the correct part. I also don't see how I could be wrong but the problem is that I called a part locator about a 2012 pump and was quoted $600.

What I don't have is any details about connectors, wiring, specifications, layout, or anything else.

Don't forget that anything that comes from the EU will have around $75 in shipping.

WOW, That's cheap (used) compared to the mr2, Maybe because they are not that popular, However, they both cost the same new.

[lowell]

What about direct electric without hydraulics? (not for this price tag though)
Motorsports EPAS only - (ECU and Wiring Not Included) - FR40105-1 - Electric Power Steering - Motorsport EPAS

[ec17pse]

These are super expensive from the stores even recon units are mega money!!! I think i need to stop looking and go to the scrap yards lol

[dsatchell]

The pump arrived today and i took some quick pictures (I'll replace these with better pics later). I also found a self study guide from VW about EHPS that discusses the steering sensor they use and the mechanical vs electrical power savings.

It's hard to make out in the last two pictures but I believe the high pressure line connector is on the left side just above the control wire plug. On the right is the power connector with the hot (+) wire on the outside edge and two low pressure ports just above that. The low pressure lines are just held on with standard flat spring clamps but I didn't have time to check out the high pressure side.

VW EHPS Self Study Guide

[miguelmcv]

How are you going to make it work?.
Did you get the steering sensor and the angle sensor that shows in the site?.

Interesting.

[greengoblin]

That looks like more work that two wires are two hose. This was one of the main reason I chose the clio/kangoo unit.

Anyone know what pressure our OEM unit produces?

The clio unit pumps out between 150-300PSI with no load .When loaded up it makes 1500PSI. Pretty sure that is plenty to run the rack and it you wanted the brakes too.
We may need a pressure reducer in line to keep from blowing out rack seals.


Kevin

[miguelmcv]

Our DSM pump produces 2000 psi, But the relieve valve will open at 1500 psi, so the rack only sees 1500psi, That pump will be enough to work with our rack.

Edit.
Steering pressure is from 1,209 to 1,309 psi.
With 1,500 psi, I don't think the pressure needs to be regulated.

[Th3DooM]

It's funny that about ten minutes ago I drove a Clio and thought about swapping a power steering pump out of this kind of car. I googled it and came up with this thread, haha

What does the 98-05 model pumps different to the 06-12? I work at a Renault Dealer and could get parts cheap I think.

[turboglenn]

I can'thelp but think that there's many many electric pumps for hydraulics systems out there. What are the specs that teh pumps need to adhere by on a minimum performance and maximum safety level basis?

I deal with hydraulics all the time and i want toask the guys at my local fluid power shop if they have anything that might fit the bill

Some things i'm assuming are that when retrofitted to an eclipse

1.) pump runs when the engine runs

2.)flow is one direction

3.) maximum PSI is probably 2700 or less

please help me with the rest and i'll see if i can find something cheaper to help all of us

[Ludachris]

Originally Posted by turboglenn

I can'thelp but think that there's many many electric pumps for hydraulics systems out there. What are the specs that teh pumps need to adhere by on a minimum performance and maximum safety level basis?

I deal with hydraulics all the time and i want toask the guys at my local fluid power shop if they have anything that might fit the bill

Some things i'm assuming are that when retrofitted to an eclipse

1.) pump runs when the engine runs

2.)flow is one direction

3.) maximum PSI is probably 2700 or less

please help me with the rest and i'll see if i can find something cheaper to help all of us

I hope some people can help with the info, I'm sure there are a few options available that we haven't found yet. I'd like to find one soon because I'm getting to the point where I need to make a decision with the build.

[evo1rice]

- pump needs to operate on 12v power and reasonable amperage (10A to 30A I would think?)
- pump needs to be compatible with power steering fluid
- must produce between 1200 and 1300psi, would eliminate any risk of broken seals.