Exhaust at normal operating tempature
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New User
Joined: Dec 2001
Posts: 18
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From: STOCKTON USA
Exhaust at normal operating tempature
I have a 2001 f-150 extended cab with 4.6l and have added k & n air filter and a gibsion dual sport exhaust. Now that it is winter i noticed when sitting at a stop my truck has a lot of (looks white)(approx 37 degrees) smoke comming out of tail pipe even after engine is at operating temp and has been driven 25 plus miles. If i hold the rpms at 2000 or 3000 i can almost make the truck disappear in the smoke, at 55 degrees no smoke. Any suggestions on what the problem is, i do not see any other cars or trucks smoking out there tail pipe when warm and at operating temp.
Lead Driver
Joined: Mar 2000
Posts: 9,359
Likes: 1
From: Hampstead, NC
Exhaust at normal operating tempature
Do you do a lot of city driving or let the truck idle alot? It's probably the moisture coming out the tailpipe in the form of steam. If your truck sits and idles alot, there will be a lot of condensation inside the pipes. The combination of the warm, dense air in the pipes and the cold air outside makes steam.
