: accelerator pedal position sensor



jerry720224
11-21-13, 02:43 AM
Hi. I took my BLS to an auto electrician who scanned the computer ans retrieved the codes P2123 and P2138, both pointing to the accelerator pedal position sensor. I started searching the net for a solution and found the part 9186726. McCarthy GM and William Hunt GM have given me the part 12793153, which appears to be the complete pedals assembly (brake and clutch pedals included). Can I buy only the accelerator pedal and replace it only? That will save me a lot of money. The complete pedal assembly (12793153) costs R13500, about 1000 pounds. The accelerator pedal alone is R987, less than 100 pounds. Any advice? are these the correct part numbers?

Jerry

ExRPO1
11-21-13, 03:25 AM
Hi. I took my BLS to an auto electrician who scanned the computer ans retrieved the codes P2123 and P2138, both pointing to the accelerator pedal position sensor. I started searching the net for a solution and found the part 9186726. McCarthy GM and William Hunt GM have given me the part 12793153, which appears to be the complete pedals assembly (brake and clutch pedals included). Can I buy only the accelerator pedal and replace it only? That will save me a lot of money. The complete pedal assembly (12793153) costs R13500, about 1000 pounds. The accelerator pedal alone is R987, less than 100 pounds. Any advice? are these the correct part numbers?Jerry

jerry, hi.

I'm assuming you're in the PE area judging by the fact you'e in contact with William Hunt GM? Although I'm in the UK, I'm a frequent visitor to both the Eastern and Western Cape, so I know the dealership in PE from formally living in Uitenhage. I've only just recently returned from SA. If this situation had arisen just a couple of months back, we could have sorted something out and I'd have brought whatever parts I could have legally carried. Shame.

Anyway, hopefully, you might be able to do this quite cheaply. In the UK, there is a vehicle known as the Vauxhall Vectra. The BLS is based on the same Epsilon floor pan and there are many parts that are interchangeable with the Vectra and indeed, use the same part numbers. It is also true of the Saab 9-3 on which the BLS is pretty much based on, only the body styling is different, otherwise the car is pretty much a Saab.

So, use the following UK Ebay links and you'll see that what you are after is available. Just plug the part numbers you have into the Ebay search function and the options will hopefully come up.

http://www.ebay.co.uk/itm/vauxhall-vectra-c-2003-accelerator-pedal-electronic-9186726-/171177953749?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item27db0049d5

http://www.ebay.co.uk/itm/SAAB-9-3-Brake-Pedal-Arrangement-Box-Manual-RHD-2003-2007-12793153-12759618-/171176626335?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item27daec089f

http://www.ebay.co.uk/sch/i.html?_trksid=p2050601.m570.l1313.TR0.TRC0&_nkw=9186726&_sacat=0&_from=R40

The prices (although they are for second hand/used parts) are significantly different than in Rands!

You never know, if you can find a Saab specialist or ex dealer in SA, they might even be able to help with obtaining the parts at significantly cheaper cost, but I'm guessing you'll have better luck getting stuff from the UK.

If you do choose to buy from Ebay, make sure you communicate with the seller first re postage and possible import tax costs to SA and make sure you pay by PAYPAL.

You could also give the following service centre in the UK a call. It is where I take my own car for its annual service and they are excellent. If you provide them with your VIN, they shouldn't have any problem finding your car on the GM system.

Evans Halshaw Accident Repair Centre,
& PDI centre,
Cranfield Rd,
Wavendon,
Milton Keynes.MK17 8LQ
Tel (don't forget to put the UK overseas code in and drop off the zero (0)1908-288659

Please keep us posted on how things go.

jerry720224
11-21-13, 04:19 AM
I am in Pretoria. The nearest William Hunt are in Pretoria and Fourways (Johannesburg). Thanks a lot for the response. When are u returning to SA? I am guessing here you arrive first at OR Tambo, which is pretty close to Pretoria?

ExRPO1
11-21-13, 04:43 AM
jerry,

Hi again. Won't be back in SA again for a few months because of work comittments, but yes, I always fly into OR Tambo and then fly down south. As I say, it's a shame (sort of!) that the issue didn't arise a few weeks back because I'm sure we could have sorted something out.

I hope you get some joy with the avenues I've provided. I'm sure though, there must be Saab's knocking around Pretoria/Joburg or dismantlers that will have the bits you need either still in the cars or on a shelf.

Be lucky!

rust09
07-19-14, 11:57 AM
I'm having a similar problem. I took my BLS to Ian Allan Saab in Virginia water, Surrey. They hooked it up to their tech2 equipment and pulled the codes P1122 and P1120 which refers to the throttle position sensor. I had first the throttle body and then the whole throttle pedal changed but the problem remained, with the engine management light permanently on, the DIC flashing the stability/traction control failure messages whenever i start the car which also drops into 'limp home' mode. This resets when i switch the engine off and then on again, though the engine management light stays on. I spent hours at Ian Allan Saab again earlier this week, having them check the whole wiring loom which they said was ok. But still the problem remains. Now i've noticed a lack of power when i press the accelerator whilst driving. I'm at my wits end. Can anyone help?

ExRPO1
07-20-14, 03:54 PM
rust09, hi and welcome to the forum, sadly, you'll find it very quiet here! How old is your car and what mileage is on it?

I'm going to suggest something you might not really like. Take the car to Manchester, to Bauer Millett and get them to look at it. I have no idea how much it will cost, but Bauer Millet are now the only Cadillac dealership left in the UK. They will I am sure, have access to up to date diagnostics for the BLS including any software updates your car requires which I'm sure you can't get done anywhere else in the UK. Prior to other former service centres closing down, I was advised to go to Manchester which is where my own BLS was serviced the very first time it had a service, because those centres didn't have access to the Cadillac software. Saab Tech 2 can still be used on the BLS and certain things can be done using it, but I believe some software stuff can't be done because it needs access to the Cadillac GM specific card. Manchester is 60 miles away from me and my car had to go there twice on the back of a recovery wagon in the first two years I had it and was repaired under warranty.

If Manchester is completely out of the question for you, then please try Stratstone PDI Centre at Wavendon, Milton Keynes, which is where I have had my BLS serviced for the last three years. Even though I do use this garage (it is 90 miles away from me!) if I needed any software updates or diagnostics doing, I'd still take my own car to Manchester, but as I say, it is probably a helluva lot closer to me than it is to you.

Just another thought on the back of all of this, how do you drive your car? What I'm saying is, does it get proper long runs, or is it a town car? If it is a town car and your car is fitted with a DPF, you might be having problems with it. Also, have you cleaned your MAF sensor and EGR valve? Both of these will cause issues if they are filthy. They need servicing at least every six months. Easy job to do for the home mechanic. I do my own. Also, the throttle body, again an easy job to do, but you say you've had a new one fitted?

Without knowing how many miles your car has on it, it is a little difficult to offer much more advice.

rust09
07-22-14, 05:45 PM
Hi ExRP01 and many thanks for replying. My car is a 2006 model with a mileage of 124,000. I do mostly motorway runs so i'm fairly sure it's not the DPF. I also changed the EGR valve very recently so i know it's not that. As i live in Basingstoke, i was planning a trip to Stratstone in Milton Keynes to see if they would be of more use than Ian Allan Motors in Virginia Waters. I was told there really is only one technician there who deals with the Cadillacs and he was going away on annual leave for a week or so. Just my luck! Did actually ring Bauer Millet but didn't fancy the 200 mile trip up there.

Can't believe how little support these cars have in the UK. I'm beginning to think i made a mistake buying my BLS. I'll do some research and take your advice and clean the MAF sensor.

Driving back from work tonight, the engine management light went out and the throttle pedal seemed a bit more 'normal' in terms of the speed it was generating. However, i can hear a slight 'wheezing' sound coming from underneath the car whenever i press the accelerator! All very strange!

Sounds like there might be a little leak in one of the 'hoses' that run underneath the car so i'm going to get it into my local mechanic to see what he makes of it.

ExRPO1
07-23-14, 11:26 AM
Can't believe how little support these cars have in the UK. I'm beginning to think i made a mistake buying my BLS. I'll do some research and take your advice and clean the MAF sensor.

To be honest, the only two 'real' issues with the 1.9 Tid BLS, is the diagnostics and the virtual lack of available replacement body parts should you have a ding. The rest of the car in all fairness, is a Saab 9-3. The braking system is standard GM fare shared between the Vauxhall Vecra and 9-3 and the engine is the bog standard Fiat diesel as fitted to loads of Vauxhalls, Fiats and Alfas, so mechanically, parts are super easy to get hold of.

As far as the MAF sensor is concerned, I bet it is choked solid with carbon build up. It is a really easy job to do. You can learn a lot just by youtube Vauxhall Vectra 1.9 cdti MAF sensor/EGR clean.

Check your intercooler charge boost hose. That is the big fat hose you can see between the engine and the battery compartment. They can split. Also check vacuum hoses.

Another thing you must check, make sure your swirl rod bar hasn't fallen off. If you are unsure what the swirl bar is, just google Saab 9-3 swirl bar and you will see pictures of it and where it is located. There is also the possibility that the flaps in the manifold have become stuck, this is a common problem on cars with higher mileages. A new inlet manifold is comparatively cheap enough, fitting it however is not, at least a 5 hour job and if you end up doing that, you might as well change your cambelt and waterpump at the same time lol!

Stratsone in Milton Keynes are good people by the way and they've given me good service in times gone by. Well worth the journey.

Try not to become disheartened. The BLS is a good car if it is looked after well. If you need any more advice I'll try and help. If I lived closer, I'd have a look myself for free, but sadly, you are a couple of hundred miles away!

rust09
07-23-14, 03:47 PM
Thanks once again for all the advice. I'll follow your suggestions and do a bit of servicing myself. I do enjoy driving the car when it's running smoothly and not idling roughly like it is at the moment. It's just really frustrating when the diagnostics don't pin point exactly where the problem is on these cars. Or when i phone even Saab garages close to me and they are so reluctant to go anywhere near it!

I'll keep you updated on how i get on.

Shame i'm not closer to Bauer Millet. They sound like my best option for diagnostics and updating my software. When i had my EGR valve fitted recently by the AA guy, he remarked that the inlet manifold was fairly new and had probably just been fitted.

I'll check all the other stuff though.