Check Engine Light
Thread Starter
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Senior User
Joined: Nov 2002
Posts: 294
Likes: 2
From: Central Coast, California
Check Engine Light
The check engine light came on a few weeks ago on my 1991 F-250 460. It came on after things were warmed up. And went off after i'd stop and started again. I took it in and the dealership said they couldnt anything wrong. So i dont know what could be the problem. It doese have 3+ month old gas in it. Would that throw the light? The tanks are almost empty so maybe I'll just fill up with some freash gas and tecron concentrate with chevron gas.
Post Fiend
Joined: Nov 2002
Posts: 9,987
Likes: 7
From: Memphis, TN
Check Engine Light
Old gas won't trigger a code, but you can pull them yourself free anytime you want with a paperclip. The Haynes manual ($12 anywhere) tells how, but their code list stinks. Check mine.
Thread Starter
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Senior User
Joined: Nov 2002
Posts: 294
Likes: 2
From: Central Coast, California
Check Engine Light
I should mention I replaced a battery with a new one. The dealership said the computer will adjust and that is the reason the light is one. Correct? but the only comes when the engine warms up? I need to know because i will be going camping and taking my camper and bayliner boat and whant to know if anything will get hurt possibly the cataylist.
I dont understand why ford did or still doese design there computers to run the engine rich when the engine light comes on
The dealership checked the codes.
Sure love The Big 460's
I dont understand why ford did or still doese design there computers to run the engine rich when the engine light comes on
The dealership checked the codes.
Sure love The Big 460's
Posting Guru
Joined: Mar 2003
Posts: 1,349
Likes: 3
From: Cloud USA
Check Engine Light
i have a 93 f-250 with a 460, The check engine light comes on when i get at hwy speeds. I got a code 33, which is no egr opening, Could be a bad egr or soleniod, I just ignor the code, I checked the spark plugs to make sure they werent too lean and they looked good. IT is a big pain in the butt to change out an egr, everthing is so rusted. I just cant wait until the check engine light burns out.
