Electrical issues please help
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Tuned
Joined: Apr 2018
Posts: 281
Likes: 1
Electrical issues please help
I have a 1991 f150 with 5.8 Windsor and an automatic transmission and a Dakota lithium 60+ 1000 cca
So I got home after it gave me some trouble starting in town got home, the next day I tried to start it and I heard the relays buzzing under the hood, I replaced all 3 relays I have no lights outside or inside the cab the only thing I have is the buzzer and it quits when I move to the run position.
Thank you for the help everyone
So I got home after it gave me some trouble starting in town got home, the next day I tried to start it and I heard the relays buzzing under the hood, I replaced all 3 relays I have no lights outside or inside the cab the only thing I have is the buzzer and it quits when I move to the run position.
Thank you for the help everyone
Cargo Master
Joined: Jan 2004
Posts: 3,118
Likes: 149
From: South Dakota
I would start by removing the battery cables from the battery posts and clean the outside of the battery posts and the inside of the cables where they hook to the battery posts and then make sure they tighten up properly. Also make sure the bolt is tight where the positive battery cable and the other wires hook to the solenoid. Also check the other end of the negative battery cable where it hooks.
How old is your fancy battery?
How old is your fancy battery?
Logistics Pro
Joined: Nov 2013
Posts: 3,928
Likes: 1,199
From: Mojave, Ca
The lithium battery is the first thing that I would check. Lithium batteries have their own charge controllers that protect the battery from over-charging or over-discharging. Can you throw a regular battery in it and see if it solves your problem?
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Tuned
Joined: Apr 2018
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So I swapped out to the old lead battery it turns over but now my fuel pumps won't turn on and it's a new relay and fuse, I got the lithium batteries in mid June, makes me wonder if I have a short draining batteries as well and thank you everyone for the help
Cargo Master
Joined: Jan 2004
Posts: 3,118
Likes: 149
From: South Dakota
If your fuel pump isn't turning on, ie you don't hear it for a second when you turn the key on, it won't start. But you should get a slight response from it with the starting fluid if the ignition is working properly. You may need to do some more troubleshooting.
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Tuned
Joined: Apr 2018
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Thank you for the input I ended up trying starting fluid no signs of trying to start so I took apart the distributor cap and rotor the rotor was toast so I ordered a distributor cap and rotor both motorcraft and 8 e3 spark plugs it should arrive Friday so I'll have an update this weekend. Hopefully my fuel line is just full and that's why I don't notice the pump
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Cargo Master
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From: South Dakota
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Cargo Master
Joined: Jan 2004
Posts: 3,118
Likes: 149
From: South Dakota
Did your new distributor come with the ignition module on the side of it? Do you have power up to the coil through one of the small wires that hooks onto the coil with the ignition switch turned on?
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Tuned
Joined: Apr 2018
Posts: 281
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Yes it did I believe I did the other day I will first thing tomorrow morning and post and let you know and again thanks for the help
Lead Driver
Joined: Oct 2016
Posts: 6,185
Likes: 633
From: Houston/Sugar Land
You can remove the spout and see if you get spark, ideally from a spark tester. If you do, the PCM is suspect. I don't think this is the fix but it is easy and gets the PCM out of the loop and maybe it will in fact work.
Lead Driver
Joined: Jan 2019
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From: N.W. Alabama
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Tuned
Joined: Apr 2018
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Cool I'll try not to stay up too late and check that in the morning before it turns into an oven lol
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Tuned
Joined: Apr 2018
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Likes: 1