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cbriggs1978
Newbie


Joined: 02 Sep 2018
Posts: 29



PostPosted: Mon Sep 23, 2019 7:29 pm    Post subject: Oil Pressure Sender change - success! Reply with quote

Dear all

Been suffering random failures of the oil pressure sender for a few months now, tried cleaning the connections but no improvement so I ordered a new one from Porsche and then read and read and read forum posts on the best way to do it.

Pretty much all posts I read suggested it was much easier to go in from the bottom but as I don't have ramps, I went in from the top and it took 10 minutes from start to finish (including getting tools out and putting them away!).

I know this isn't a complicated job but I just wanted to share in case others are looking to do this and thinking bottom is the best way to go!

I used a crow foot spanner, short extension and ratchet and found access tight but no scraped knuckles etc - more than enough room to do the job.

For interests sake, with the old sender, the car always read just under 1/2 a bar with ignition on, the new one reads zero. Still to give the car a good run out to see if there is a different reading when fully up to temperature.

hope the pics are self explanatory!
 



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deMort
Dijon


Joined: 21 Mar 2015
Posts: 7470
Location: Brighton


PostPosted: Mon Sep 23, 2019 7:36 pm    Post subject: Reply with quote

Spot on .. there's nothing i can add other than i recently bought myself a 19mm open end crows foot spanner to make my life easier .. i would suggest a rather long bar / ratchet to actually crack it undone though .

Top job Thumb
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My Daughter's Crowdfunding has hit the target .

Thank you all so Very much .

She's not going until july 2020 though .



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Halcyon
Imola


Joined: 02 Nov 2015
Posts: 818
Location: Somerset


PostPosted: Mon Sep 23, 2019 7:42 pm    Post subject: Reply with quote

I've had a new one sat on the shelf for aaaggesssss and I really must get on with it!
What size crow's foot spanner is that..
Actually, I'm being lazy, I should go and just look at mine...

19mm Thumb
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infrasilver
Fast & Furious
Fast & Furious


Joined: 04 Oct 2010
Posts: 8465
Location: East Midlands

2001 Porsche 996 Targa

PostPosted: Mon Sep 23, 2019 8:21 pm    Post subject: Reply with quote

Also make sure the crows foot spanner is narrow as it needs to fit between the sender housing and the engine where it mounts. The one I bought was slightly too wide so I had to grind it down for it to fit.
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bullet-proof_biscuit
Newbie


Joined: 10 Jun 2019
Posts: 30



PostPosted: Wed Sep 25, 2019 3:40 pm    Post subject: Reply with quote

thanks for info.

Just to add, my gauge used to hover just over 1 bar when fully hot and 110 Celsius oil temp, when idling, now spends most of its time at 5 bar and only down to 3 bar hot idle.. It was never sat at 5 bar when fully hot & changing revs when driving, so these symptoms suggest faulty sender in my eyes. will change and report back for others who may have similar symptoms.

Beers!
 
  
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maldren
Suzuka


Joined: 07 Oct 2016
Posts: 1183



PostPosted: Wed Sep 25, 2019 4:29 pm    Post subject: Reply with quote

Many thanks, mine needs doing too, I just need to work out where it goes and what your photo shows!
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Mike
2003 996.2 C2 Coupe Arctic Silver
 
  
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deMort
Dijon


Joined: 21 Mar 2015
Posts: 7470
Location: Brighton


PostPosted: Wed Sep 25, 2019 6:27 pm    Post subject: Reply with quote

Its located towards the rear of the engine and o/s/r ( right hand of the car ) .

usual check to see if its faulty is turn the ignition on .. if it goes above 0 then its faulty .
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My Daughter's Crowdfunding has hit the target .

Thank you all so Very much .

She's not going until july 2020 though .



Mechanic

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Now At An Indy.
 
  
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Harvster
Trainee


Joined: 08 Jan 2019
Posts: 64
Location: Derbyshire


PostPosted: Fri Sep 27, 2019 8:29 am    Post subject: Reply with quote

Bloody hell this is something I need to do too. I had my theories but now deMort suggests turning the ignition on and if it rises above 0, its faulty...that means mine is..

Can I find it though! Nope. Cannot see anything that looks like these pictures on the right banks of the engine. Is it any different on a 996 C4S?
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deMort
Dijon


Joined: 21 Mar 2015
Posts: 7470
Location: Brighton


PostPosted: Fri Sep 27, 2019 6:50 pm    Post subject: Reply with quote

It is a bit tucked away to be honest and far easier to see from underneath .

O/s/r .. see where the main round wiring plugs are .. about 3 inches back from there and use your hand to feel for the sensor .. you should just about be able to see the wiring loom going to it .
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My Daughter's Crowdfunding has hit the target .

Thank you all so Very much .

She's not going until july 2020 though .



Mechanic

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Now At An Indy.
 



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Harvster
Trainee


Joined: 08 Jan 2019
Posts: 64
Location: Derbyshire


PostPosted: Sun Sep 29, 2019 8:25 am    Post subject: Reply with quote

deMort, thank you as usual. I have managed to spot it...just. My C4S has the PSE so has a bit more in the way, what I believe to be the valve and the vacuum cylinder, which might make it a little more difficult!

I plan to disconnect the PSE valve assembly and then try for access..

Here is a picture of my view of it!
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Porsche 911 996 4S 2003
 



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maldren
Suzuka


Joined: 07 Oct 2016
Posts: 1183



PostPosted: Sun Sep 29, 2019 11:08 am    Post subject: Reply with quote

Thanks Ian (&Harvester), the pics show just what I need. I'll get the part ordered now.

Mike
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2003 996.2 C2 Coupe Arctic Silver
 
  
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maldren
Suzuka


Joined: 07 Oct 2016
Posts: 1183



PostPosted: Fri Oct 04, 2019 9:37 am    Post subject: Reply with quote

A couple of questions:

1. How does the new sender thread seal, does it come with a sealer on it, does it seal as a taper thread or do people use PTFE or a sealant?

2. If using an offset (cows foot) this will affect the torque setting, how do people allow for this (or do you ignore and just use the recommended torque setting?)

thanks
Mike
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2003 996.2 C2 Coupe Arctic Silver
 
  
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deMort
Dijon


Joined: 21 Mar 2015
Posts: 7470
Location: Brighton


PostPosted: Fri Oct 04, 2019 6:30 pm    Post subject: Reply with quote

New sender should have an ally seal on it .. this is the part that seals it , no ptfe is needed ...

An extension or a crows foot won't affect torque setting .. i dont torque them up though ... tight is tight .
_________________
.

My Daughter's Crowdfunding has hit the target .

Thank you all so Very much .

She's not going until july 2020 though .



Mechanic

7pm - 9pm

Now At An Indy.
 
  
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maldren
Suzuka


Joined: 07 Oct 2016
Posts: 1183



PostPosted: Sat Oct 05, 2019 8:22 am    Post subject: Reply with quote

Excellent, many thanks
Mike
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2003 996.2 C2 Coupe Arctic Silver
 
  
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ian_alex
Silverstone


Joined: 25 May 2015
Posts: 147



PostPosted: Sat Oct 05, 2019 4:17 pm    Post subject: Reply with quote

I certainly couldn't have replaced this from the top on mine,maybe there is some extra pipe and reservoirs with the valved exhaust system?
It is relatively easy from below with the crows foot but then even getting the replaced was difficult enough from above !!
 
  
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modz1r
Newbie


Joined: 03 Oct 2019
Posts: 5



PostPosted: Tue Oct 15, 2019 11:23 am    Post subject: Reply with quote

never looked at my 'not running' oil pressure before reading this - and yup - showing 1 bar engine off.

now replaced and shows 0 with engine off.
 
  
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