New Ranger Sulphur Dioxide problem

RA have you done a search on the New Ranger.net forum. Don't know how to paste a link, but I was alerted to the site by someone on here weeks ago

Does the vehicle have a DPF. If it does it might be burning off the soot in it which is what they are designed to do.

HTH

John D

RA
I would be looking for a head to manifold leak or at the turbo to engine pipe or even at the egr valve piping and body.
For you to be smelling it in the cab it has to be in that region somewhere and getting through the firewall grommets or may be getting sucked in from the plenum via the rear seal of the bonnet.
A white light LED torch and a good look might find it. Maybe a small piece of hose to the ear and listen with the other end at likely spots will locate the hiss.

You know dealers can't do that so they won't find it.

Ross M

Hi Ra
May be it is from the vehicle in front of you and coming in to your car through the airconditioner

regards Paul

RA, with low sulphur diesel, doubt that it would be coming from the fuel, but have no idea where it is coming from.........sorry I am not more helpful.

Maybe check the battery is not gassing and giving off hydrogen sulfide (rotten egg smell) Maybe check the voltage at high revs as it may be over charging and causing the battery to give off hydrogen sulfide. Also check the battery for bulging as it could be on its way out, unusual for a newish vehicle but it can happen.

For all those that tried to help, thank you.

I have had a think about it and I can see Ford won't be able to help because they won't have the time to work out why this is happening.

I have decided to hire a gas monitor after talking to them, then video what happens. If it happens on the video I have proof that something is wrong. This really has me beat as I have never, never heard of this before with any diesel. I have had my eyes and body stinging from the diesel underground but never smelt SO2 from the diesel.

RA.

I think your problem may be from over fueling for a few seconds under load and the catalytic converter burning of unburnt fuel.

Why the smell is coming into the cabin could be caused by vacuum under the Ranger pulling air from the back of the Ranger to the front, remember you have cabin breather vents at the back of the cabin .... what may seem a non logical reason may the the most logical reason.

On modern vehicles you see this piece of plastic or what seems to be a deformed piece of rubber and you wounder why that is so....... it turns out to be engineered that way to alter that way to control noise, water, smell, dust or air in a specific area.

We haven't had this problem with our Ranger and we have done nearly 13,000k and a lot of over taking under load.

I doubt it very much it would be a leak in the exhaust or firewall.

Out of curiosity does it do it when the cabin air is on reticulated air when not under load....... reason I ask is years ago we had a new 100 series Landcruiser in our workshop from a dealer that had a smell similar to your..... we traced the fault to damp carpet from the AC where the recirculated air is picked up from, the smell was only there when on recirculated air........ I haven't noticed yet with the Ranger but modern vehicles do some strange things for NVH levels and one of the strategies may be to switch from fresh to recirculated air when under load to lower the amount of engine noise entering the cabin when under load.

One thing you may want to do is temporarily extend your exhaust pipe another 8-12 inches out the back and try it..... if it fixes it it means the the smell is from the exhaust and is getting sucked back into the cabin..... worth a try.

Just some more info on the problem I have.

I emailed Ford and they have rang me back, they are quite concerned about the problem. I find this quite refreshing, considering the amount of negative response you see about from vehicle manufactures and dealers.

The response was very good and they are going to have one of their tech guys look at it. I said, I would hire a gas detector and video the result and they were very happy with that as trying to duplicate the problem, would be hard due to the distance to get it to do it and the speed they would have to attain. In other words exceed the speed limit, as they can't do that.

For the knockers that say you shouldn't be over the speed limit. I say! I don't want to know about that, because most of the time when passing on the open road we all speed.