Fire!!!!
Thread Starter
|
Freshman User
Joined: Mar 2007
Posts: 32
Likes: 0
Fire!!!!
So here's the scenario; I've been "restoring" an 85 F150 inline 6. Sometimes it feels like I'm destroying it all over again. Anyway, I just put the catalytic converter part back on. This truck came with a unit that has two converters. I noticed 2 cracks in the back one so I pulled it and welded, then put the unit back. I recently replaced the manifolds and pulled the carb, etc...to do it. Put that back on and plugged everything coming off of it until I figure out how it all gets connected correctly. Guy before me didn't do very good job. So I started the truck, runs great, noticed some exhaust coming out of the manifold, kind of sucks but I can deal with fixing that, noticed some exhaust coming out bottom of the first cat conv, this really sucks. Noticed some sparks, maybe cat conv rubbed against jack, then wammy...FIRE.... Incidentally my wife pulled up at that moment ready to freak. I extinguished fire, calmed her down, then went into shock. What happened? Too much fuel not circulating through the engine and coming out cat conv? Any other ideas? Suggestions?
Thank You
Chris
Thank You
Chris
Thread Starter
|
Freshman User
Joined: Mar 2007
Posts: 32
Likes: 0
Originally Posted by ri_truck_guy
Isn't an 85 300 only supossed to have one cat?
Thread Starter
|
Freshman User
Joined: Mar 2007
Posts: 32
Likes: 0
Check this out
At the base of my manifold there is a part that screws in, kind of looks like a spark plug. It has a wire coming out of it. If that wire went live, touched metal and sparked, it could have burned off old oil from wherever it sat. Does this seem reasonable? Any idea what that part is and where wire should go?
Trending Topics
Posting Guru
Joined: Jun 2002
Posts: 2,091
Likes: 3
From: Suffolk, VA USA
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
Thread Starter
|
Freshman User
Joined: Mar 2007
Posts: 32
Likes: 0
Originally Posted by ri_truck_guy
Thats the oxygen sensor wire...not enough voltage to start a fire.
Thanks
Posting Guru
Joined: Jun 2002
Posts: 2,091
Likes: 3
From: Suffolk, VA USA
It should go directly from the O2 sensor to a connection in the wiring harness...it not being connected won't do much beyond giving bad readings to the computer, but your engine will run more efficiently if you find the harness connection and hook it back up. The wire is usually fixed to the O2 sensor itself. If it's disconnected on that end you generally need a new sensor.
