General Ford Ranger DiscussionGeneral discussion of the Ford Ranger that does not fit in any other sub-forum.
Welcome to Ford Ranger Forums - The Ultimate Ford Ranger Resource
Welcome to Ford Ranger Forums - The Ultimate Ford Ranger Resource
You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!
Any updates on this? Did you check to see if any of your wires were crossed after changing the plugs?
Also, go to your "User CP" and update your signature. This way we can know the year/model of your truck. This way we can possibly help you out a little better.
As stated above, check out your cats. If they are clogged/bad or whatever, you can replace them.
As the fuel burns, the organic sulfur compounds break down into simpler compounds. If the engine is running lean (more air than is needed to burn the fuel), the sulfur is likely to be SO2, or sulfur dioxide. The catalytic converter can change this into SO3 (sulfur trioxide), which then reacts with the catalyst to form sulfates on the catalyst. Over several minutes there is a build up of sulfates. If the engine suddenly starts to run rich (not enough air to burn all the fuel), such as when you stop at a red light, climb a steep hill, or brake hard to slow down, the chemistry changes. Now the sulfates are unstable and they react to form hydrogen sulfide, which is expelled from the exhaust pipe all at once. The high concentration is the reason for the bad smell! This effect is a common problem with new vehicles because the catalyst is working at a very high efficiency. However, as the catalyst gets older, the activity drops. Fortunately for us, one of the first reactions to be affected is the formation of hydrogen sulfide. So as the catalyst gets older, the smell will go away. It should also be noted that many catalysts never smell bad. One reason might be because the vehicle doesn't run lean for much of the time, or perhaps the catalyst has an extra component that reduces the production of hydrogen sulfide.
Why dose my truck smell like bad eggs?
