wiring/ignition
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wiring/ignition
ok so yea i have a 91 f150, 4.9l 300ci... well today go to start, it does then turns off... try again cranks but no fuel or spark.. disconnected battery and reconnected.. no relays clicked.. fuel pump didnt turn on either... just wondering if n e one else has had this problem or knows what it could be... checked all fuses.. and relays... only thing i could find was a wire from the could harness but i dont think it went to n e thing cause the end was taped n e ways....
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if n e one also knows where i can find a complete wiring diagram/schematic it would help me out greatly...
and some guy at the auot shop by my house said the abs system my be in series w/ the computer and that would cause it to not do n e thing n e one know if this is true??
and some guy at the auot shop by my house said the abs system my be in series w/ the computer and that would cause it to not do n e thing n e one know if this is true??
Senior User
Joined: Nov 2003
Posts: 320
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From: Northwest BC. Canada
Did you check the fusible links??
Check this thread
https://www.ford-trucks.com/forums/s...hreadid=183554
The picture may help.
It could also be your ECM on the distributor giving you grief.
Just some ideas.
Dan
Check this thread
https://www.ford-trucks.com/forums/s...hreadid=183554
The picture may help.
It could also be your ECM on the distributor giving you grief.
Just some ideas.
Dan
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i checked pretty much everything i can get to... but then i recharged the batt cause i killed it cranking after trying things. let it sit for like 3 hours went out fired right up.... then died when i tapped the gas then i started it again and it died after idling for about 30 seconds
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ok i just wiggled the ground wire on the batt.. the fuel pump kicked on and i was like yesss!!!!!! then i started it...it did, but died after about 10 seconds... now nothing again no spark or fuel... only thing is now when i disconnect and reconnect the batt the check engine light turns on and stays on, w/ no key in ignition and nothign on.. just yea its on... no clue why...hate fords electrical designs.. n e ideas would be greatly appreciated..
Last edited by problematic91f150; Dec 22, 2003 at 05:47 PM.
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a local mech, said there may be a short somewhere, or a bad ground which would make some sense, cause then ignition and the fuel pumps wouldnt get power and could cause the check engine light to turn on when with nothing on just the battery connect.. so i traced trough the rat nest of wires and found nothing wrong.. so that isnt it.... this thing is driving me crazy... if the body of the truck didnt look as good as it does id push it off a cliff....
suggestions on possible problems please...?
thanx
suggestions on possible problems please...?
thanx
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Cargo Master
Joined: Dec 2003
Posts: 2,735
Likes: 38
From: Sunny Florida
Try a new ignition switch. In 89 I know they had a recall on them.
I feel for you. I have been chasing a problem as well on my 89 that I can not ppin point.
I feel for you. I have been chasing a problem as well on my 89 that I can not ppin point.
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