Rotten Eggs

[Dr3wDrop]

Looks like a normal amount of condesate this morning and no smell.

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[GTGallop]

Cataleytic Converters run off of heat. The heat activates the reaction between the catalyst (expensive metals) and the gasses in your exhaust. If you make a lot of short drive, in cold weather, the cat may not completely burn off the stuff passing through it.

Back in the day (80's) dad had a work truck with the HO engine. He spent a lot of time driving slowly around dirt tracks out in the oil field. Then when he got up on the freeway and that HO engine started to flow the cat would get hot and burn out the crap in it. It would blow a little smoke and smell like sulphur for a bit.

That was back when cats were newish and mounted half way to the back of the truck as an after thought. Now our cats are usually bolted right up on the exhaust headers almost. Better heat there.

I think you have a very limited situation caused by substandard gas and a very cold cat that finally heated up and burned off some junk.

Take it out on the highway and really hammer it getting on the on ramp. Let that muther breathe.

 

[AzScorpion]

Looks like a normal amount of condesate this morning and no smell.

Good deal. Looks like the "Tony tune up" worked.

 

[THLONE]

As soon as the engine gets warmed up that Cat will leave. Look for blood on the fan blades.
A little pine sol on your engine compartment will keep those critters out.

 

[seanellaz]

So its 2 degrees F outside this morning. Used remote start like normal to warm up the truck. Looked out the window and my neighbors car is practically invisible it is covered in so much exhaust smoke. I laugh and go outside to leave 10 minutes later and the fumes smelled like rotten eggs. Should I be worried? Figured it was more related to the extreme temperature drop than anything else.

https://rislone.com/products/cat-complete-fuel-exhaust-emissions-system-cleaner/ The Catalytic Converter (CC) will probly make hydrogen sulfide until warmed up. If it keeps stinking, try some cleaner. I ran a tank of 1/4 93 octane + 3/4 100 octane (no lead) racing fuel in my truck once last year. Did not make the truck any faster (no tune) but it DID make the check engine light come on. I can't recall how I figure out it was the CC, but 2 doses of this in 2 tanks regular unleaded fuel and out went the check engine light, cleared the code.

 

[JonB]

I ran a tank of 1/4 93 octane + 3/4 100 octane (no lead) racing fuel in my truck once last year. Did not make the truck any faster (no tune) but it DID make the check engine light come on.

Burning leaded fuel in a catalytic converter-equipped vehicle causes several problems. The lead in the fuel reacts with the metal catalyst in the converter and destroys its function, so your vehicle will cause more pollution. Because your truck was designed to use a catalytic converter, it won't run as well when the converter is nonfunctional. It's probably why the check engine light came on. Continuing to use leaded fuel can cause the converter to build up excessive heat and even catch fire under certain conditions. Don't do this!

 

[Pop2021]

Just my un-informed opinion. 2 degrees F is not in any way cold. That seems like a lot of exhaust smoke for a fairly mild winter temperature.

You’re not confusing this with Celsius are you, cause 2 degrees Fahrenheit is pretty cold.

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