Missing 460 driving me crazy!
Thread Starter
|
Senior User
Joined: Sep 2003
Posts: 467
Likes: 0
From: Manton,MI
Missing 460 driving me crazy!
I have a 1996 E350 with a 460 that has a miss. The engine has 25,000 miles on it so it has set more than it's been driven. I have put in new plugs, wires, cap, rotor and cleaned the corroded end of the coil. I have changed the air and fuel filters and dumped sea foam in the gas tank all with no change. The other night I unplugged the map sensor to hook up a vacuum gauge and the check engine light came on and the miss went away. I switched the map sensor with a running Ford truck and the truck still ran fine and the van still missed. Anyone have any idea's? The cat runs hot, as it should with a misfire. I'm tempted to take it to a shop but I have a feeling I'll be buying a bunch of parts I dont need as they eliminate things they think it might be. Help. RB
Fleet Owner
Joined: Aug 2010
Posts: 21,255
Likes: 1,657
From: Reynoldsburg, Ohio
Would a compression test of each cylinder show you anything? Could be a stuck or burned valve especially if you're already ruled out plugs, wires etc etc. Hope its not anything serious............
Thread Starter
|
Senior User
Joined: Sep 2003
Posts: 467
Likes: 0
From: Manton,MI
It runs perfect when the computer is in open loop so it's not an engine issue. It's either the computer or wiring or sensor. Probably something real stupid.
Thread Starter
|
Senior User
Joined: Sep 2003
Posts: 467
Likes: 0
From: Manton,MI
I paid someone to diagnose it for me, and they could only guess that it might be the ignition module. So tonight I bought one and put it on. It looks exactly like a TFI module, they just moved it from the distributor to the fire wall. It runs like a top now. 
Fleet Owner
Joined: Aug 2005
Posts: 23,668
Likes: 301
From: Easton,Ks
Trending Topics
Thread Starter
|
Senior User
Joined: Sep 2003
Posts: 467
Likes: 0
From: Manton,MI
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
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
Fleet Owner
Joined: Aug 2005
Posts: 23,668
Likes: 301
From: Easton,Ks
Your engine is not wired right to use the gray one. Also your computer is not programed to use the gray one. You will not have as much power from the engine and it will be harder to start along with poorer gas mileage.
You will also be getting an error with the gray one.
You will also be getting an error with the gray one.
Thread
Thread Starter
Forum
Replies
Last Post
canadianfella
1987 - 1996 F150 & Larger F-Series Trucks
1
Apr 9, 2003 11:16 AM
