VSS - Does it really need a PAS connection?

Post by **Merlin** » Tue Jun 16, 2015 12:43 pm

indigolemon wrote:Looking at the net, it seems the vss restricts the pass through of PAS fluid when at higher speeds, so if you coupled the two pipes going to the vss together and added something to restrict flow, you'd get heavier all the time.

I wonder what would happen if I looped the PAS lines and somehow restricted the flow, maybe something like a brake bias valve and dial in the amount of constant assistance I want

bennyboy · Post by **bennyboy** » Tue Jun 16, 2015 12:48 pm

Shall I have a look at the VSS setup and try to get a pic for you? It honestly sounds suspiciously like what I have, I just can't remember the reasoning behind it! Sorry!

Post by **Merlin** » Tue Jun 16, 2015 12:49 pm

Please take a pic.

bennyboy · Post by **bennyboy** » Tue Jun 16, 2015 12:51 pm

Will do.

bennyboy · Post by **bennyboy** » Tue Jun 16, 2015 1:35 pm

Sorry @Merlin, just been down to take a look and I cant get a pic that will help at all without taking a few gubbins out

You know who would know though....

Post by **Merlin** » Tue Jun 16, 2015 1:39 pm

No probs. Thanks anyway. Yeah it is tucked away under the intake etc...

@bennyboy I take it your one looks like this? Ie with no PAS lines on it? Taken from the 5th gen service manual.

Post by **NafemanNathan** » Tue Jun 16, 2015 2:19 pm

Is removing PAS entirely not an option?

Otherwise why not put an inline tap on each pipe as close to the VSS as possible to minimize spillage?

Post by **Merlin** » Tue Jun 16, 2015 2:26 pm

NafemanNathan wrote:Is removing PAS entirely not an option?

I like my power steering.

I am going to read up about it before doing anything further. I wonder what would happen if you blocked the PAS feed to the VSS rather than reducing its flow

mercutio · Post by **mercutio** » Tue Jun 16, 2015 5:26 pm

Merlin wrote: I wonder what would happen if you blocked the PAS feed to the VSS rather than reducing its flow

it would assume you do not have the engine running therefore no assistance

89 UKDM BA4 4WS (resto job!) · Post by **wurlycorner** » Tue Jun 16, 2015 6:44 pm

I love the way everyone has made new suggestions that are the same as indigo's original one

The speed sensor is gearbox driven merc, not engine speed driven. When the engine is not running you have no assistance, because the power steering pump isn't running, not because of the vss