Exhaust spatter - The 1947 - Present Chevrolet & GMC Truck Message Board Network

conoco · 03-04-2020, 04:34 PM

Anyone else have this happen with their truck? Or have any ideas why this is coming out of the exhaust? My truck is running great no problems that I know of, but I hope if this is a sign that something is wrong I can fix it before it does any damage.

notsolo · 03-04-2020, 04:43 PM

I think its just water cleaning out the dirt in your exhaust... just frozen by the time it gets to the back.

54blackhornet · 03-04-2020, 04:50 PM

Alaska will do crazy stuff to you.

**Steeveedee** · 03-04-2020, 05:51 PM

Rich mixture when you start it, and then there is condensed water in the cold tailpipes until it warms up. Looks normal to me.

conoco · 03-04-2020, 08:20 PM

Alaska sure as hell does some crazy things lol. Specially 2200 ft up in the mountains!! Thsnks fellas for the answers. I dont have to worry now !!

**truckster** · 03-04-2020, 10:53 PM

Quote:

Originally Posted by Steeveedee

Rich mixture when you start it, and then there is condensed water in the cold tailpipes until it warms up. Looks normal to me.

That's it exactly. Carbon from a rich mixture and water vapor condensing in the cold tailpipes. If your choke is set correctly and it's not running rich once it warms up, there's really nothing to fix.

**Steeveedee** · 03-04-2020, 11:53 PM

Heh, I remember driving an old Corvair through the parking lot to the truck and tractor shop over the snow in the mid-'70s in Idaho, and it leaving a nasty oil trail on top of the snow.

It got push rod oil seals the next spring.

03-04-2020, 04:34 PM	#1
conoco Registered User Join Date: Nov 2019 Location: Eagle River Alaska Posts: 320	Exhaust spatter Anyone else have this happen with their truck? Or have any ideas why this is coming out of the exhaust? My truck is running great no problems that I know of, but I hope if this is a sign that something is wrong I can fix it before it does any damage. Attached Images

03-04-2020, 04:43 PM	#2
notsolo Registered User Join Date: Apr 2008 Location: Md Posts: 2,482	Re: Exhaust spatter I think its just water cleaning out the dirt in your exhaust... just frozen by the time it gets to the back. __________________ http://67-72chevytrucks.com/vboard/s...d.php?t=635605

03-04-2020, 04:50 PM	#3
54blackhornet Registered User Join Date: Jul 2008 Location: Eastern Oregon Posts: 2,391	Re: Exhaust spatter Alaska will do crazy stuff to you. __________________ 71 C-20 07 Magnum RT AWD

03-04-2020, 05:51 PM	#4
Steeveedee Who Changed This? Join Date: Jan 2013 Location: Simi Valley, CA Posts: 10,677	Re: Exhaust spatter Rich mixture when you start it, and then there is condensed water in the cold tailpipes until it warms up. Looks normal to me. __________________ ~Steven '70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper Simi Valley, CA

03-04-2020, 08:20 PM	#5
conoco Registered User Join Date: Nov 2019 Location: Eagle River Alaska Posts: 320	Re: Exhaust spatter Alaska sure as hell does some crazy things lol. Specially 2200 ft up in the mountains!! Thsnks fellas for the answers. I dont have to worry now !!

03-04-2020, 11:53 PM	#7
Steeveedee Who Changed This? Join Date: Jan 2013 Location: Simi Valley, CA Posts: 10,677	Re: Exhaust spatter Heh, I remember driving an old Corvair through the parking lot to the truck and tractor shop over the snow in the mid-'70s in Idaho, and it leaving a nasty oil trail on top of the snow. It got push rod oil seals the next spring. __________________ ~Steven '70 Chevy 3/4T Longhorn CST 402/400/3.56 Custom Camper Simi Valley, CA



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