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[Mutha Jugs n Speed]

Having  the sheds out to try and make sense of all the spares bought over the last four years....shocking!! I've found five OE crank shaft sensors 90492006, and presume that they are for the 3.0. Question is..are they suitable for the 3.2 also? :-\TIA

[TheBoy]

If it's the black plastic one, it's good for 3.0 and 3.2 and 2.6 and most 2.5s.  If it's the silvery metal one, its for early 2.5s IME.  Also IME, EPC is wrong for 3.0l crank sensors, and offers the metal one when it should be the plastic one.

[Mutha Jugs n Speed]

Thank you, will take a closer look, I guess they would be OK for the 3.0, but am I thinking that failure is rare on the  3.0?

[TheBoy]

Thank you, will take a closer look, I guess they would be OK for the 3.0, but am I thinking that failure is rare on the  3.0?

IME, it's more common on the 3.0l.  I think the spin on filters are part of the reason for their demise, and all 3.2s shipped with cartridge filters (ignoring the misinformed who swapped them out), where as on the last 2 years of 3.0l came with cartridge filters.

[Doctor Gollum]

Misinformed or not, the spin on filters don't snap in half when they're over tightened and can be removed far more easily than the caps. And if you're changing the oil every couple of months, why not simplify the process

[Enceladus]

There are three different crank sensors for the V6's. All three have different resistances.

90492006 is 550Ω. It has a square sided connector and most V6 cars have an oval sided loom connector. So it will fit in the block just fine but you can't connect it. And no, you can't just cut and splice splice the loom off your existing sensor because the resistance in the sensor head is incorrect. My guess is that these are early Calibra sensors.

90492061 is (circa) 720Ω is the early iteration of the oval connector sensor. Supposedly used on some early X25XE. Information on EPC is incorrect.

A 2.6/3.2 is much more likely to use 90540743 aka Bosch 0-261-210-131. The sensor head might also be stamped with a factory production number 90494182.  Cadillac and Saab use the factory production part number, it's still the same Bosch 0-261-210-131. This sensor has an oval sided connector and a resistance of 900Ω.

[VXL V6]

Misinformed or not, the spin on filters don't snap in half when they're over tightened and can be removed far more easily than the caps. And if you're changing the oil every couple of months, why not simplify the process

I've never found the cannister type to be difficult in all honesty and i've never had one that the lid didn't undo on the five V6's i've owned / two I still own.

[Doctor Gollum]

They're not difficult per se, but access gets annoying if you have to fight one. Spin on were quicker and cheaper. The housing makes a bit more sense in wwd applications because it's not stuffed above the crossmember.

By comparison, the cartridge filter location on a Merc or BMW is even easier because it's just there when you open the bonnet.

[TheBoy]

Misinformed or not, the spin on filters don't snap in half when they're over tightened and can be removed far more easily than the caps. And if you're changing the oil every couple of months, why not simplify the process

Oh I've had to fight some spin ones in the past, not on Omegas though, where some mongrel thinks that hand tight is about 30,000Nm.

On a V6 Omega, I'll go for the cartridge type every single time. Les messy and easier to replace (if you're not following a ham fisted retard).

And I think it makes the crank sensor last longer. I never had a crank sensor failure on one that had the cartridge filter, only on spin ons.  And I've changed a shit load of crank sesnors

[STEMO]

Misinformed or not, the spin on filters don't snap in half when they're over tightened and can be removed far more easily than the caps. And if you're changing the oil every couple of months, why not simplify the process

Oh I've had to fight some spin ones in the past, not on Omegas though, where some mongrel thinks that hand tight is about 30,000Nm.

On a V6 Omega, I'll go for the cartridge type every single time. Les messy and easier to replace (if you're not following a ham fisted retard).

And I think it makes the crank sensor last longer. I never had a crank sensor failure on one that had the cartridge filter, only on spin ons.  And I've changed a shit load of crank sesnors

Like every dealer mechanic that ever did an oil change.

[Andy B]

Misinformed or not, the spin on filters don't snap in half when they're over tightened and can be removed far more easily than the caps. And if you're changing the oil every couple of months, why not simplify the process

Oh I've had to fight some spin ones in the past, not on Omegas though, where some mongrel thinks that hand tight is about 30,000Nm.

On a V6 Omega, I'll go for the cartridge type every single time. Les messy and easier to replace (if you're not following a ham fisted retard).

And I think it makes the crank sensor last longer. I never had a crank sensor failure on one that had the cartridge filter, only on spin ons.  And I've changed a shit load of crank sesnors

My Omega went through 2 crank sensors in the many years I had it & mine had a cartridge filter.
I agree with you Jamie though that the filter is easy enough to replace .... I never had a problem with mine. 

[Migv6 le Frog Fan]

Ive had to change crank sensors on my Omegas with both types of filter. Its the proximity to the exhaust fanimold that kills the wiring imo.

[TheBoy]

Ive had to change crank sensors on my Omegas with both types of filter. Its the proximity to the exhaust fanimold that kills the wiring imo.

I think it's oil on the wiring right by the sensor.  My oil crank sensors went nowhere near the exhaust

[Doctor Gollum]

The crank sensor is basically a service item on the Omega.

Along with the HBV, wishbone bushes and steering idler

[Mutha Jugs n Speed]

So apart from the 2.5, these aren't any good for the other V6's in the Omega range. And if I'm understanding this correctly. The 90540743 would be compatible with the rest of the V6's including the 3.0?

[johnnydog]

The crank sensor is basically a service item on the Omega.

Along with the HBV, wishbone bushes and steering idler

A service item??? Really???
I don't know what you did with your Omega (when you actually owned one) to have the necessity to change those items at such an appalling rate
The 2.6 and 3.2 crank sensor is as said 90540743.
19 years of 3.2 and 2.6 ownership, plus numerous other 2.2, 2.6 and 3.2's owned on a shorter period basis, and approx.150k combined in that time, I've only ever had to change one crank sensor on a 2.2 due to failure, one set of wishbones, one HBV, and no idlers.
So to suggest they are basically service items is a bit extreme, to say the least....

[Doctor Gollum]

The crank sensor is basically a service item on the Omega.

Along with the HBV, wishbone bushes and steering idler

A service item??? Really???
I don't know what you did with your Omega (when you actually owned one) to have the necessity to change those items at such an appalling rate
The 2.6 and 3.2 crank sensor is as said 90540743.
19 years of 3.2 and 2.6 ownership, plus numerous other 2.2, 2.6 and 3.2's owned on a shorter period basis, and approx.150k combined in that time, I've only ever had to change one crank sensor on a 2.2 due to failure, one set of wishbones, one HBV, and no idlers.
So to suggest they are basically service items is a bit extreme, to say the least....

Personally, my ex plod had two in 9 years. Both genuine sensors from a genuine VX dealer that I genuinely had to walk into. Once at 120k and again at 250k. In that time it also required two HBVs, at similar mileages. Likewise shocks. That car was owned and used by me from 2009/97k miles until 2016/270k miles... So plenty long enough to experience the full life expectancy of various components.  Incidentally My first Omega cost £5,495 and required a clutch and cam covers in the year I owned it. The other 7 which form the basis of my ownership experience between 2009 and 2018 cost about £6,500 combined and some needed nothing, some everything. And those belonging to others that I have worked on, have all required much the same items replacing between 80-120k so take of that what you will.

The Omega was perceived by the market as being unreliable. The crank sensor was probably the single biggest cause of roadside breakdowns along with HBV failure and premature cambelt failure.

Add in all the other items that typically wear out between 80 and 120k miles and the list of what actually makes the Omega unreliable is pretty short. But the crank sensor and HBV are top of the list.

I suggest it as a service item because changing it as a matter of course at 100k is no different to, by way of an example, changing the water pump along with the cambelt on a VW Golf. The belt interval is 60-80k (depending on vehicle brand) but the water pump will leak and require replacing (with a new cambelt) at circa 100k, well before the next cambelt... Ergo you change the waterpump at each belt change.

So perhaps I mean preventative maintenance rather than routine servicing, but if you preemptively replace items known to fail as a matter of course, then the chances of an actual breakdown are significantly reduced. And if you include said items as part of routine servicing then a) you're less likely to forget, and b) less likely to suffer a failure.

Obviously that will be wrong, incorrect or otherwise contrary but if you poll any recent/current Omega owners here, I would wager that at least half either carry a spare in the car or have one at home ready.

[johnnydog]

I'd agree with the self levelling shocks, but their failure in my experience is linked to rear coil spring pigtails breaking, which tended to be reasonably often, especially if towing.
But two crank sensors in 250k isn't really a service item is it? More preventative maintenance as you have stated.

[Doctor Gollum]

I'd agree with the self levelling shocks, but their failure in my experience is linked to rear coil spring pigtails breaking, which tended to be reasonably often, especially if towing.
But two crank sensors in 250k isn't really a service item is it? More preventative maintenance as you have stated.

That same car was on its original plod springs. It was corrosive that killed the rear shocks. Fronts simply wore out.

[Enceladus]

So apart from the 2.5, these aren't any good for the other V6's in the Omega range. And if I'm understanding this correctly. The 90540743 would be compatible with the rest of the V6's including the 3.0?

Likely depends on the model year of the 3.0. The Vauxhall/Opel EPC is unreliable for these sensors. The only way to be sure is to pull the sensor and check. You need a like for like replacement to match the version number of the installed Bosch ECU and there doesn't seem to be any published reference table. I suspect that any Model Year 1997 V6 2.5/2.6/3.0/3.2 is more likely to have 90540743.

Character V in position 10 of the VIN designates MY '97. Model Year is not the same as calendar year or registration year. MY '97 spec cars were first produced around August 1996. And it's entirely possible that model year '96 spec production overlapped for a while.

Unless your 3.0 is one of the first produced then I doubt if it has the oval connector on the loom.

[Kevin Wood]

...I suggest it as a service item because changing it as a matter of course at 100k is no different to, by way of an example, changing the water pump along with the cambelt on a VW Golf....

A colleague of mine has had 2 water pumps die within as many years on his Golf, one siezed up, left him standing by the roadside and very luckily didn't lunch the engine, but VAG cars are not unreliable. Oh, no!

[BazaJT]

Apart from the 5 series and 3 series BMWs I had that I blew the engines of both then the Mk1 VW Scirocco remains the most unreliable car I've ever owned[and I've owned some real dogs ] As for the cranks sensor I don't know part numbers or anything but I'd suggest the post above by Enceladus is slightly off as my 3L was registered March 2000 and is the full facelift version and that has an oval connector.

[TheBoy]

but VAG cars are not unreliable driven by self-abusers with small willies.

Mrs TB fixed that for you .  She seems to have a bee in her bonnet about VAG car drivers recently.  Whilst I do see what she is getting at, I find the Merc mob to be the worse in these parts.  BMW drivers, the few you actually see now, aren't even on the list of cocks now

[STEMO]

Most quite a lot of drives of all makes drive like idiots nowadays, because there is nothing to keep them in check. They can drive in the most appalling manner without any fear of being pulled up by the law, they know where the speed cameras are and most of them don't work anyway. It's a free for all, and most people expect, and even make allowances for, other drivers pulling out, overtaking dangerously, speeding and generally not following the rules of the road.

[STEMO]

As I typed that, I heard the sound of a powerful car speeding down the road outside our house with parked cars either side. There is a shop five doors down which is often used by kids buying pop and sweets (probably fags and booze as well), if one of them steps out between cars, they are toast.

[Enceladus]

Apart from the 5 series and 3 series BMWs I had that I blew the engines of both then the Mk1 VW Scirocco remains the most unreliable car I've ever owned[and I've owned some real dogs ] As for the cranks sensor I don't know part numbers or anything but I'd suggest the post above by Enceladus is slightly off as my 3L was registered March 2000 and is the full facelift version and that has an oval connector.

"Off". How so?

An oval connector is nearly certain on any 2000 V6 as you have confirmed. I don't know the year of Mutha Jugs n Speed's car, but unless it's one of the earliest Omegas, that pre-date MY 1997 and has a square connector, then the five spare 90492006 sensors he has won't fit.

[Doctor Gollum]

They're all facelift, 2x 3.0 and a 3.2 iirc

[Kevin Wood]

Most quite a lot of drives of all makes drive like idiots nowadays, because there is nothing to keep them in check. They can drive in the most appalling manner without any fear of being pulled up by the law, they know where the speed cameras are and most of them don't work anyway. It's a free for all, and most people expect, and even make allowances for, other drivers pulling out, overtaking dangerously, speeding and generally not following the rules of the road.

.. and don 't get me started on the wokerati who refuse to pass a oppsing side road without stopping to let someone out - even if there's no traffic behind them anyway.

[ronnyd]

Most quite a lot of drives of all makes drive like idiots nowadays, because there is nothing to keep them in check. They can drive in the most appalling manner without any fear of being pulled up by the law, they know where the speed cameras are and most of them don't work anyway. It's a free for all, and most people expect, and even make allowances for, other drivers pulling out, overtaking dangerously, speeding and generally not following the rules of the road.

.. and don 't get me started on the wokerati who refuse to pass a oppsing side road without stopping to let someone out - even if there's no traffic behind [/highlight]them anyway.

Errm, very loose connection to topic there Kevin. 

[STEMO]

Most quite a lot of drives of all makes drive like idiots nowadays, because there is nothing to keep them in check. They can drive in the most appalling manner without any fear of being pulled up by the law, they know where the speed cameras are and most of them don't work anyway. It's a free for all, and most people expect, and even make allowances for, other drivers pulling out, overtaking dangerously, speeding and generally not following the rules of the road.

.. and don 't get me started on the wokerati who refuse to pass a oppsing side road without stopping to let someone out - even if there's no traffic behind [/highlight]them anyway.

Errm, very loose connection to topic there Kevin. 

And? 

[Rangie]

Most quite a lot of drives of all makes drive like idiots nowadays, because there is nothing to keep them in check. They can drive in the most appalling manner without any fear of being pulled up by the law, they know where the speed cameras are and most of them don't work anyway. It's a free for all, and most people expect, and even make allowances for, other drivers pulling out, overtaking dangerously, speeding and generally not following the rules of the road.

. 


When I joined the London Ambulance Service in 1979 , I had a brilliant driving instructor for the courses we had to take which were night driving ,high speed driving & skidpan the best piece of advice from him was treat other drivers as unskilled & always expect the unexpected, it has always stood me in good stead. Nowadays the majority of driving I witness is of an extremely low standard.

[Mutha Jugs n Speed]

I joined in 1974, and the instructor I had more than once went round Parliament Square the wrong way on the blues. Said it was a great shortcut I remember him well....his nickname was Schizo,but a great guy......not a clue how I ended up as a senior driving instructor for Nat Ex!

[Doctor Gollum]

The crank sensor is basically a service item on the Omega.

Along with the HBV, wishbone bushes and steering idler

A service item??? Really???
I don't know what you did with your Omega (when you actually owned one) to have the necessity to change those items at such an appalling rate
The 2.6 and 3.2 crank sensor is as said 90540743.
19 years of 3.2 and 2.6 ownership, plus numerous other 2.2, 2.6 and 3.2's owned on a shorter period basis, and approx.150k combined in that time, I've only ever had to change one crank sensor on a 2.2 due to failure, one set of wishbones, one HBV, and no idlers.
So to suggest they are basically service items is a bit extreme, to say the least....

Can’t remember exactly how much we pay the AA for personal cover for the two of us but in the past when the price creeps up I’ve left them and returned soon after as a new customer, with new customer lower pricing. Don’t know if that still works but worth a try.
The only time that I called them out was for the Omega crank sensor.

[Mutha Jugs n Speed]

I've had two on the red 3.2, the second one of which was fitted by yourself, and the previous one which was fitted at my sons place, possibly why that one failed pretty early. The other 3.2 and the 3.0,never had a problem ...yet!!