Most new cars today use electric power assist steering EPAS —replacing the previous generation of mechanical, hydraulic systems that take more space under the hood and are less fuel-efficient.
A conventional hydraulic steering system applies torque assist to the steering box based on the amount of pressure the driver applies to the steering wheel. The steering pump is connected directly to the engine, so it consumes a lot of energy, robbing the engine of five to eight horsepower while decreasing fuel economy as much as three miles per gallon.
The programming that controls the electric motor has improved in recent years so EPAS these days provides precise linear steering at all speeds, as well as these benefits:.
These advantages explain why an increasing number of aftermarket companies offer electric power assist steering conversion kits for a wide range of vehicles, including classics and hot rods. This electric-power steering kit is designed for a Ford Mustang from to Depending on the manufacturer, the conversion kit includes an electric power steering control module on-board computertorque sensor, brushless permanent magnet motor, and wiring harness. You might be able to modify your existing steering column to accept the kit depending on its width.
If not, see our guide to upgrading your steering column. The kit fits under the dashboard and runs off a volt power source. Some aftermarket systems work solely on steering wheel torque, while others can sense wheel speed and traction control input.
Some EPAS systems have a default mode. In the unlikely case of a failure, a warning light flashes on the dash. The vehicle is safe to drive, but the driver will need to exert more steering effort because the power assist has been disabled. An electric power steering assist system utilizes an electric motor rather than a steering pump, eliminating parasitic power loss from the engine.
EPAS kits work on vehicles with or without hydraulic power steering. In nearly all cases, the upgrade will deliver significantly better steering performance.
Converting to electric power assist steering is a significant investment in both parts and labor. But if you plan to keep your classic car for a long time and drive it with any frequency, an EPAS system is probably worth the money—giving your vehicle improving steering performance, increasing engine efficiency, and decreasing expensive repairs down the road.
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The comments about electric assist make me feel like converting my K10 Suburban however I have not found a system recommended for my truck? If anyone knows of a system please let me know! There are plenty of school buses that have the notorious 6.Original Poster. Search My Stuff What's New 3 12 24 Electric power steering retrofit, anyone had it done? Prev of 2 2 Next. Rapid rental Original Poster posts months. Hi all, i see there are a few Dutch companies advertising a retrofit to classics, to give a bit of life to heavy steering!
Has anyone had it done by either of the two main firms, one is called ooto. I am considering it but would like to see if its any good in real life.
Some rally Mk2 Escorts have electric Corsa p-steering. Might be worth a look. Looks interesting, very similar to the dutch system. Recomended modification if your steering is very heavy or you're not as young as you used to be!
Monza Phil posts months. Mind you, the workout is doing me good I'm sure. The actual powered part of the column looks quite easy to splice into my existing car but I've just had other stuff to do and as it already steers, the conversion is a low priority.
How Electric Power Assisted Steering Works, And Why It's Better Than Hydraulic
Make sure you get all the right bits if going down this route. You'll need the electric column, ECU and a module. Other option is to get a complete Corsa of course but there are plenty of people selling the right bits.
The Fiat Punto system is far more reliable and comes with a variable control button they call City Driving. Whilst it's fairly simple to rig a system like this up, you have to remember that your column is taking a good deal more stress because the assistance is being applied on the column inside the car, not at the rack or box, so make sure you beef up the column mountings properly.
I prefer this to hydraulic steering because you retain a standard rack and this gives better feel. Flatinfourth posts 90 months. The specialist i have watched in action in the workshop fitting electric systems takes considerable time tuning the system on a laptop afer fitting.
Does anybody have an answer as to how you attain that level of adjustability from a Corsa system, or even the Fiat one, which presumably simply has two operating levels of assistance? Flatinfourth, who have you seen it fitted by?
I agree, i think you must have the resistance spot on, otherwise it would be way too light. TonyBrooks 78 posts months. Just a warning. We fitted a second hand power steering conversion to our rally Absolutely superb in operation and made a huge difference BUT we had not noticed that the previous owner had modified it slightly and when one of the welds failed it left us with no steering whatsoever!
Fortunately we had noticed a possible problem literally seconds before and had slowed down so the following 'incident' was completly without damage. A few minutes earlier and I hate to think of what the outcome might have been. I fitted the Corsa column with no welding, I I have used the full corsa column therefore did not cut and join shafts as I have seen done, I have a dash mounted adjuster for sensitivity and its brilliant.
It's also easily switched off too.When going from a modern car to a classic, often one of the first things you notice as you pull out of your drive is the heavy steering. Unless you spend half your life pumping iron, some older VWs can really flex your muscles.
This is where a helping hand in the form of power assistance will come in useful. But before you start hunting around for all the bits you need to fit it to your car, or book it in at a specialist to get it done, carry out some other checks first.
Specifically, are your tyres pumped up to the correct pressure and is your steering working as it should? These work the steering in the same way as a traditional power steering setup with its hydraulic rack, pump, hoses and accompanying PAS fluid reservoir. A custom wiring loom takes power directly from the battery.
Mk2 Golf The Mk2 Golf is a delightful car to drive, but being quite a bit bigger and heavier than the Mk1, early examples without power assistance can feel tiresome to steer when negotiating tight parking spaces or when doing lots of town work. In a nutshell, the subframe needs to be dropped, or the engine removed, so that you can bolt in the PAS rack. The necessary PAS pipes, along with a reservoir, UJ boots, pump and brackets will be required to get it all to work.
The Mk3 Golf setup is a popular choice, too, being more modern and a bit lighter than the older systems. That said, you will need to swap over the alternator and pulleys. A word of advice if you do go down this route; it might be worth buying a new PAS rack as fitting a secondhand one that later turns out to be duff will be a real pain.
The opinions expressed here are the personal opinions of the author and do not necessarily represent the views and opinions of VW Heritage. I have my VW camper type 2 steering column fitted but the wiring needs to be fitted and the fuse needs to be identified. Can you help please.
Hi Christine. This would be best discusses with one of our team, or better still a VW mechanic who has the van in front of them. Please send some photos through to esales vwheritage. Not that we are aware of, but the same principles apply so a company who specialise in this should be able to help. This type of PAS coversion can typically be retrofitted to most vehicles Kelly. Contact the companies mentioned in the article for pricing.
Any advice would be very welcome. I recently had power steering fitted. Your email address will not be published. Ian The opinions expressed here are the personal opinions of the author and do not necessarily represent the views and opinions of VW Heritage. Please contact us for more info and pricing structures. Regards, Ben — Slaughter House Customs. Leave a Reply Cancel reply Your email address will not be published.TDI s : jetta sportwagon. Electronic Power steering failure.
I'm a newbie, and I am sad to admit that I changed the battery in my Jetta and accidentally connected touched the positive lead to the negative post. It was look enough to arch. Several fuses were blown which I replaced.
All of the dash indicator lights are On as a result, and I have no power steering. I can not find any information on power steering fuses or relays.
Any insight to what I should look for or do would be very helpful. My car is going to the shop, but I would like to know in advance what I can expect as far as service work goes.
You will need to have the car scanned to determine what isn't working. Our VW's are highly computer controlled and they can tell you what's wrong. Unfortunately it may not be as simple as blown fuses.
You can't tell without the scan. My 2 cents On the front of the fuse panel behind your battery, there are some fusible links on the front of the fuse panel that have red wires attached to them. Perhaps you blew the fusible link for the steering. VCDS isn't some sort of magic. Just one step in a diagnostic process. The first step is to always fix obvious problems first such as blown fuses, blown fusible links, broken wires bad grounds, vacuum leaks etc.
A blown fusible link or fuse will throw a code which might cause a tech without a clue to replace your steering rack. I have heard of folks that put their battery in backwards without major damage, but there is a real good chance you may have turned a controller or two into a brick. VCDS would tell what controllers are not responding anymore providing those controllers are getting power. I find it amazing folks can even put a battery in backwards.
It looks like on my car anyway, it would be a major fight to get the cables to reach Last edited by Ol'Rattler; April 15th, at Certified Volkswagen Nut Vendor.Many more of new cars and trucks today are using a new kind of power steering system. This system is all electric. That is, there is no hydraulic power steering pump that is driven by the engine drive belt. No fluid to build pressure to operate the rack and pinion.
No power assist of any kind from fluid. There is not fluid reservoir to check and fill, and thus no chance of it ever having a fluid leak. Conventional power steering uses a belt driven pump to direct high pressure to the rack and pinion or gearbox.
The force you put on the steering wheel is enhanced by this pressure to allow for easy turning of the wheel, even when the vehicle is not moving. When the vehicle is moving, it is easier to steer, even without any power assist from hydraulics or an electric motor. All of the power assist for the electronic steering is generated by an electric motor.
This motor is under the dash on most vehicles. It connects the steering wheel and column to what is called the intermediate steering shaft. This shaft is driven by the electric steering motor, then sends steering assist to the rack and pinion.
This is all controlled by a module or computer. Here is a pic of a typical steering motor…. General Motors had a few problems in this new system a few years ago. What would happen is that your car would loose power assist. Your car would not lose steering, just the power assist portion. So that would make the steering wheel hard to turn. Similar to what happens if you ever had a belt break or had very low fluid on your vehicle in the past. Many people complained they lost steering, could not turn the car, and almost crashed.
I do understand that a sudden loss of power assist can be very disconcerting, but you do still have control of your vehicle. You just need to use a little more effort to turn it.
There has been a lot of chatter on the web about this problem.
plug fit Electric power steering pump for VW polo
Many forum posts have people talking about how they fixed it by replacing the fuse. Well, if the fuse was not blown, then replacing it would do nothing to help and did not fix the problem except for a short time.VW Golf 5, 1.9 TDI throttle clean? preventive, intake flaps? WD vs THROTTLE spray
Removing the fuse basically takes power away from the control module. This has the effect of resetting the system. Just as if you unplug your computer, then turn it back on.
The steering problem will just return soon enough. There have been problems with the system in other cars as well. This is actually a common thing to happen as a new technology enters the market and gets real life testing from the consumer. The auto manufacturers all do extensive research and testing before putting a new technology in their vehicles.
The problem here is that no matter how much testing and simulating is done, it still does not compare to real world driving by the every day person. So problems do arise. Another thing that effects this sort of thing is mass manufacturing.To make driving a little bit easier, auto manufacturers have been using power assisted steering systems for a few decades now.
The original power steering systems use a hydraulic pump to move fluid into chambers in your steering system. When you turn the steering wheel with the engine running, the pump will fill one of the chambers to help you turn the wheels. Electric power steering systems have started to take over as the technology has become less expensive over the years. A warning light on the dash will let you know when a fault has been detected with the steering system. This warning light tends to be in the shape of a steering wheel, sometimes with an exclamation mark.
For cars with electric power steering, the light may say EPS, for electric power steering. Either way, the warning light will be yellow or red in color. Hydraulic Power Steering Systems: A common reason for the warning light to illuminate is low power steering fluid. You should pull over if you see this light turn on and check the fluid level immediately. Top it off with the correct fluid type and the light should turn off. Keep in mind that low fluid means a leak is present that needs to be remedied at the earliest.
Adding fluid will only be a temporary fix until there is no more leakage. You will still be able to drive, but the steering wheel will be very difficult to turn, so you will need to be extra careful when driving. In fact, simply restarting the engine can sometimes turn the light off.
Like your computer at home, small errors can occur that cause the computer to think there is an actual issue. A quick reset and the computer will see that everything is working as intended. Like hydraulic systems, the power assist will be disabled for the time being and steering will be difficult when this warning light goes on.
Without power steering, the vehicle will be very hard to maneuver. Otherwise, the lack of steering assist could land you in a collision. Replacing your power steering fluid at regular intervals will help keep your steering system in top shape. If you have any issues with your power steering system, our certified technicians will be able to help you identify any problems.
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What the power steering system warning light means This warning light tends to be in the shape of a steering wheel, sometimes with an exclamation mark. Is it safe to drive with the steering system warning light on?
Home Articles.Lite-Steer is a retro-fit, electronic, speed-sensitive, power-assisted steering system; engineered and made in the UK.
Electric Power Steering – Problems And Repairs
Our systems have been developed over many years to improve driving experience, whilst retaining the integrity of the vehicle. Lite-Steer technology is currently predominantly used in VW campervans, however, due to increasing demand, we are gradually developing our products for many classic cars.
Lite-Steer is simple enough to fit for most enthusiasts with some basic mechanical knowledge. The unit is supplied fully assembled, you just bolt the unit in and follow the wiring instructions. No welding or floor work is required. Full fitting instructions and wiring diagrams are included with every unit. Call now on or drop us a line at sales litesteer.
What is Lite-Steer? For VW Campervans For classic vehicles. Fitting Lite-Steer Lite-Steer is simple enough to fit for most enthusiasts with some basic mechanical knowledge. Self-fitting Approved centres. Recent projects View all. Get in touch Call now on or drop us a line at sales litesteer.