 |
| OEM R32 GT-R Hicas pump. The front port here has the adaptor, valve and spring removed |
This one was a bit of an odd one. This car had just recently been redone (engine rebuild, engine bay paint), and the Hicas was removed. The OEM pump was rebuilt, but after the steering was heavy at low speed. At less than 2000 rpm and low speed the steering was very heavy. Just about too heavy to really move the car around.
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| Valve and spring out of an OEM Hicas pump on the left. On the right the one we took out of this car. The one on the right also shows some scoring on the valve. If we get some time, we will see if we can take it apart to look at the internals. |
The rebuilt pump was replaced with another rebuilt pump, and they still had the same issue. The customer brought the car by for us to have a look at. Ernie and Wakita were both here, so we bounced some ideas around. Wakita suggest that unplugging the solenoid on the rack, the steering will be light all the time. Ernie unplugged it with no change in steering effort. We also noticed that when turned hard to the lock, you wouldn’t hear the pump bypassing internally.
We put the car on the lift to do it a look over. To see if we could make sure all the lines were going the right places, nothing crushed or out of place. Check and make sure nothing was binding. Nothing seemed out of the ordinary. On the lift, tires in the air, steering was light. So my thought was that maybe the bypass valve might be bad/wrong.
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| Left valve and spring is original. Right is one that came out of car |
Ernie swapped the valve over, and steering was back to what is normal for an R32 GT-R. We are going to have a look at the valve that came out, and talk to a few people to see if they have seen similar things. Overall pretty odd. Especially with two rebuilt pumps.
I also checked to see if the front and rear valve/springs out of a Hicas pump were different, and they both appear to be the same.
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| R32 power steering pump with HICAS. The pump is inverted in this picture to how its mounted in the car. |
TwoSix Engineering Power Steering Pump bench test – https://www.gtrusablog.com/2020/02/gtr-r32-power-steering-pump-test-bench.html
Nissan Skyline power steering system information and troubleshooting. https://www.gtrusablog.com/2017/05/nissan-skyline-power-steering-system.html
Buy USA Legal R32, R33, and R34 Skylines at Toprank Importers!
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NGK Iridium IX Spark Plug LFR5AIX-11 (8 Pack) for NISSAN TITAN SE 2004-2008 5.6L/5552cc
(as of July 14, 2026 05:22 GMT +00:00 – More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)Often specified as original equipment, NGK spark plugs are the best combination of performance and longevity. Offering the Quality, Reliability and Durability You'd Expect from an OEM Manufacturer NGK is the world's largest supplier of OEM spark plug… read more
OYEAUTO 93501 Iridium Spark Plugs LKAR7BIX11S 6 Pack Compatible with Nissan 370Z Maxima Murano Pathfinder Quest GT-R Altima 2001-2024 & Infiniti G37 QX60 Q60 2008-2024 & Acura MDX TLX 2017-2024 V6
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SYKRSS 6240 Iridium Spark Plugs 8 Pack Compatible with Nissan Armada Titan Pathfinder Armada 2004-2006 Compatible with INFINITI QX56 M45 FX45 Q45 2002-2010 4.5L 5.6L V8 Engine for PLFR5A-11 Spark Plug
(as of August 25, 2026 08:46 GMT +00:00 – More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)【OE Standard】Our spark plugs meet or exceed OE specifications for form, fit and function and are perfect for automotive replacement spark plugs.Quick and easy installation, excellent and reliable performance. Premium spark plug kits are a quick and e… read more
BDFHYK LKAR6AIX-11 Iridium Spark Plugs Compatible with Chevy for Nissan 2007-2013 Altima 2008-2013 Rogue 2007-2012 Sentra 2013-2021 NV200 1.6L 1.8L 2.0L 2.5L L4 Engine Replacement for XP5684, Set of 4
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![[Vehicle Fitment-1]: This automotive replacement spark plugs Compatible with INFINITI 2009 2010 2011 2012 2013 FX50 V8 5.0L, 2011 2012 2013 M56 V8 5.6L, 2014 2015 2016 2017 2018 2019 Q70 V8 5.6L, 2015 2016 2017 2018 2019 Q70L V8 5.6L, 2011 2012 2013 ...](https://m.media-amazon.com/images/I/51a4vf0j0NL._SL160_.jpg)
Iridium Spark Plugs 8 Pack 93501 LKAR7BIX-11S Compatible with Nissan Armada NV2500 NV3500 TITAN INFINITI FX50 M56 Q70 Q70L QX56 QX70 QX80 V8 5.0L / 5.6L
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BDFHYK 93501 Iridium Spark Plugs Compatible with Nissan TITAN Altima Armada NV2500 NV3500, Compatible with INFINITI QX56 QX60 QX80 M56,CX-3 Replacement for LKAR7BIX11S Set of 8
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NGK V-Power Spark Plug – 2526
(as of August 25, 2026 10:17 GMT +00:00 – More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)NGK V-Power Spark Plug Item Package Dimension: 11.68L x 9.68W x 1.8H inches Item Package Weight – 0.42 Pounds Item Package Quantity – 1 Product Type – SPARK PLUG
