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dt4
Monza


Joined: 16 Mar 2016
Posts: 170
Location: Leeds


PostPosted: Sun Dec 09, 2018 8:04 pm    Post subject: Oil pressure sender replacement Reply with quote

The pressure on the gauge is constantly high (off the scale high)
I would like to replace the sensor / sender, is this a straight forward job?

Does any one have a good spare I could buy to prove the sender being at fault

cheers
 
  
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deMort
Long Beach


Joined: 21 Mar 2015
Posts: 6675
Location: Brighton


PostPosted: Sun Dec 09, 2018 8:10 pm    Post subject: Reply with quote

Ignition on but engine not running .. if it reads over 0 bar then 9.5 times out of ten then its a faulty sender unit .

Ive never seen it being anything other than the sender but i never give a 10 out of 10 Very Happy

https://www.design911.co.uk/fu/prod13546/Oil-Pressure-Sensor---Switch-Porsche-996-Carrera-34L---36L-and-997-Carrera-36L---38L-99660620302-99660620302/


I would shop around though .. probably cheaper elsewhere .
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ballcock
Sepang


Joined: 21 Jul 2008
Posts: 2963
Location: Dublin

1996 Porsche 993 Carrera 2

PostPosted: Sun Dec 09, 2018 9:09 pm    Post subject: Reply with quote

As per DM, it’s the way to go!
Mine was reading 5 bar key in position one, I’ve just had it changed, I was told it was a simple job to replace. I also picked mine up from design911.
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Stoo.c
Monza


Joined: 07 Apr 2014
Posts: 205
Location: Hertfordshire


PostPosted: Mon Dec 10, 2018 9:03 am    Post subject: Reply with quote

I think I paid £50 on eBay from one of the well known parts suppliers for a genuine Porsche one (don't think you can get pattern ones anyway).

Providing you have a narrow enough crows foot wrench its a very simple swap.
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maldren
Suzuka


Joined: 07 Oct 2016
Posts: 1081



PostPosted: Mon Dec 10, 2018 10:00 am    Post subject: Reply with quote

D911 do a 'URO brand' part for £41.95+VAT (-discount).

I would be surprised if Porsche had their own specific sender unit, it's rather an industry standard part, we need to find out where else it is used. Mind you it isn't very expensive and an alternative part may not be much cheaper.

Are there any manufacturer's marks on the old part?
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2003 996.2 C2 Coupe Arctic Silver
 
  
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Kingb4
Spa-Francorchamps


Joined: 20 Jan 2018
Posts: 363
Location: Beds/Bucks


PostPosted: Mon Dec 10, 2018 11:44 am    Post subject: Reply with quote

I just replaced mine - as said above its very easy, using a crows-foot spanner to reach it from the underside, loosen it, then once unscrew it from the top by hand - obviously remove the two wires first!

I paid £55 (incl postage) for a genuine Porsche one (VDO manufacturer mark on the original and the new one) - got it sent by Silverstone OPC.
I would personally go for OEM, rather than save a fiver. (If there was a bigger differential, then it makes sense to consider alternatives)
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dt4
Monza


Joined: 16 Mar 2016
Posts: 170
Location: Leeds


PostPosted: Mon Dec 10, 2018 12:43 pm    Post subject: Reply with quote

Thanks for the tips chaps,
Could you advise on the crow foot spanner size please, I don't have one so will need to buy

cheers
 
  
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Kingb4
Spa-Francorchamps


Joined: 20 Jan 2018
Posts: 363
Location: Beds/Bucks


PostPosted: Mon Dec 10, 2018 1:38 pm    Post subject: Reply with quote

You will need a 19mm crow-foot spanner.
As with all tools, you can pay lots or peanuts.

I got a cheapo silverline crow-foot spanner set for £12 off Amazon. As I haven't needed them before, so didn't want to spend a fortune, for tools I may only use once. I normally steer clear of cheap tools - these seem ok. Am sure they wouldnt take a lot of use/abuse.
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dt4
Monza


Joined: 16 Mar 2016
Posts: 170
Location: Leeds


PostPosted: Mon Dec 10, 2018 6:24 pm    Post subject: Reply with quote

Kingb4 wrote:
You will need a 19mm crow-foot spanner.
As with all tools, you can pay lots or peanuts.

I got a cheapo silverline crow-foot spanner set for £12 off Amazon. As I haven't needed them before, so didn't want to spend a fortune, for tools I may only use once. I normally steer clear of cheap tools - these seem ok. Am sure they wouldnt take a lot of use/abuse.


cheers, I will look them up
 
  
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dt4
Monza


Joined: 16 Mar 2016
Posts: 170
Location: Leeds


PostPosted: Sat Jan 05, 2019 8:07 pm    Post subject: Reply with quote

So got the car up the air to see how easy access was from underneath etc... not too difficult
Whilst looking at the sensor from the top I noticed one of the connectors was detached from the sensor.
Great I think it may have worked loose and thats the problem, simply reconnect and alls is well. Unfortunately not, reconnected and still the oil pressure is off the scale with the key at the first position and at idle

One of the connectors is crimped with heat shrink tubing rather than the OE block connector suggesting some previous connection "issues"
 
  
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deMort
Long Beach


Joined: 21 Mar 2015
Posts: 6675
Location: Brighton


PostPosted: Sat Jan 05, 2019 8:18 pm    Post subject: Reply with quote

That sensor is for no oil pressure and the oil pressure gauge .. if a wire was unplugged but the gauge reads oil pressure then i assume the no oil pressure side was disconnected ... thats just a light on the cluster .

Replace the sensor and see what happens on the gauge .. its normally just this .

Heat shrink fix .. normally done as the wire is starting to come out of the connection (bare wires at the top of the connection ) .. you can replace the connection or heat shrink as in this case .
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dt4
Monza


Joined: 16 Mar 2016
Posts: 170
Location: Leeds


PostPosted: Sun Jan 06, 2019 3:59 pm    Post subject: Reply with quote

Thank you
Its looking pretty past it, can they be tested,
 



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dt4
Monza


Joined: 16 Mar 2016
Posts: 170
Location: Leeds


PostPosted: Wed Jan 16, 2019 6:01 pm    Post subject: Reply with quote

So I bought a new sender from design911 and fitted it tonight
Having never had a working gauge what should a good one show on start up ?
 
  
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P911X50
Monza


Joined: 03 Jan 2017
Posts: 234
Location: Hertfordshire


PostPosted: Fri Jan 18, 2019 10:53 pm    Post subject: Reply with quote

What reading are you getting now from the new sender?
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dt4
Monza


Joined: 16 Mar 2016
Posts: 170
Location: Leeds


PostPosted: Sat Jan 19, 2019 8:56 am    Post subject: Reply with quote

P911X50 wrote:
What reading are you getting now from the new sender?


photos here
http://911uk.com/viewtopic.php?t=131908&highlight=
 
  
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