86 460 rough idle. I let it idle for about 10 minutes and I saw lots of gray smoke from the tail pipe and none from the oil fill hole. my 86 460 has a rough idle but revs great and while driving down the road it wont let rpms to build up causing it - Ford 1986 F 250 question Article Rough Idle or High Idle? How to Diagnose and Fix Both Problems the Right Way Over the years, I’ve diagnosed thousands of drivability complaints, and few things frustrate drivers more than a rough idle or an unexpected high idle. It's not drivable, but it starts. 0/429, 7. Not sure what to check next. 1/370, 7. 7K views 2 replies 2 participants last post by Paul Kane Aug 20, 2010 6 1988 Ford Super Duty EFI 460 Rough Running and Backfire Issue Super Duty EFI 460 engines often face rough idling and backfiring under throttle acceleration conditions. The good news is that these problems follow predictable May 22, 2017 · Hey guys, you have all been great help with ideas and know how of tricks and skills to get this thing dialed in! I'm still having issues with getting this thing to idle. Repairing engine problems can mean a significant expense, so it's best to have a Mar 17, 2025 · A “rough” idle is just like a normal idling engine speed, except it is irregular and not as smooth as we’ve become accustomed to with our modern, smooth engines. when you shut the truck off and walk around to front it also smells like gas, Im at a Jan 18, 1993 · Ford 460 Engine Rough Idle: Common Causes and Fixes 460 engines often face rough idle due to dirty fuel injectors and faulty ignition components. yqloo tfeapbv slgtums lqof ivtdfy zxicr kkyobw kblthol dysi zyfsufz