Engine light coming on
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Junior User
Joined: Oct 2005
Posts: 78
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Engine light coming on
hey does anybody know whats wrong when this happens, i have a 1989 f-150 custom with a 302, when i slow down after driving for about 20 minutes or half hour my engine light will come on and my oil pressure gauge will go way below low then i will start driving again it will go back up.
Postmaster
Joined: Oct 2006
Posts: 4,816
Likes: 1
From: Davis & Newcastle, CA
The best place to start would be to grab the codes. Check fordfuelinjection . com for a method to jump the contacts or buy a $30 code reader at Kragen (I did, its worth it). Report the codes back here.
-Chris
-Chris
i ain't rite
Joined: Mar 2005
Posts: 65,443
Likes: 5,516
From: Marlboro Mental Hospital.
the engine has high mileage on it rite?? the problem is that the bearings in the bottom end of the engine have lost their tolerances, and you now have low oil pressure. the oil pressure gauge is not really a gauge, but more an on/off switch. below a certain pressure it will show none, and over a certain pressure it will show normal.the only way to properly fix this is to overhaul the bottom end of the engine.
Post Fiend
Joined: Apr 2006
Posts: 12,281
Likes: 1
From: Saskatoon Saskatchewan
Yeah check codes with code reader actually as a matter of face it comes on after you put in gas and the gas cap aint on tight enough did it my parents 04 Sedona did it me to shut it off tighten up gas cappes turn er back on she was good to go but might not be the problem on yours
