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Posted: 1/19/2021 11:54:09 PM EDT
[#1]
If jumping the relay works I’d say it may be the ignition switch.
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Posted: 1/20/2021 12:21:20 AM EDT
[#2]
Quote HistoryQuoted: If jumping the relay works I’d say it may be the ignition switch. Thanks for the input. I'm a total novice, so this is probably a stupid question, but: What tells the trucks to actually send the fuel to start the engine? Jumping the relay just makes the starter crank, it won't actually start the truck.. Is there an equivalent to sending fuel to the motor to see if the engine will actually start? Maybe that would help me rule out fuel delivery problems? |
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Posted: 1/20/2021 12:39:23 AM EDT
[#3]
Should be able to hear fuel pump run when you turn key on. Check for pressure on fuel rail.
Check all grounds and ignition switch. Check positive wires to starter. Bad solenoid?? |
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Posted: 1/20/2021 2:39:01 AM EDT
[#4]
Quote HistoryQuoted: Thanks for the input. I'm a total novice, so this is probably a stupid question, but: What tells the trucks to actually send the fuel to start the engine? Jumping the relay just makes the starter crank, it won't actually start the truck.. Is there an equivalent to sending fuel to the motor to see if the engine will actually start? Maybe that would help me rule out fuel delivery problems? What does fuel have to do with this? You stated “no click, no nothing”. Does the starter spin the engine every time you turn the key or not? |
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Posted: 1/20/2021 2:50:01 AM EDT
[#5]
Quote HistoryQuoted: What does fuel have to do with this? You stated “no click, no nothing”. Does the starter spin the engine every time you turn the key or not? As of now, no matter how many times I try turning the key does nothing. The starter does crank if I jump the starter relay. Jumping the starter relay doesn't start the truck though. The starter will just crank until I remove the jumper wire (or until the battery dies, I guess). |
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Posted: 1/20/2021 3:50:30 AM EDT
[#6]
Quoted: Quoted: What does fuel have to do with this? You stated “no click, no nothing”. Does the starter spin the engine every time you turn the key or not? As of now, no matter how many times I try turning the key does nothing. The starter does crank if I jump the starter relay. Jumping the starter relay doesn't start the truck though. The starter will just crank until I remove the jumper wire (or until the battery dies, I guess). It doesnt start it when the key is in run position AND you jump the solenoid? |
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Posted: 1/20/2021 3:55:48 AM EDT
[#7]
Is there a remote start or after market alarm system in it?
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Posted: 1/20/2021 4:29:06 AM EDT
[#8]
Quote HistoryQuoted: It doesnt start it when the key is in run position AND you jump the solenoid? Correct. If I turn the key to Run AND I jump the pins on the starter relay (is that what you mean by solenoid?) the starter cranks, but the car does NOT start. There is no after market alarm or stock alarm/security (this is actually a fleet model with roll up windows/manual locking doors). |
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Posted: 1/20/2021 8:52:11 AM EDT
[#9]
Ignition switch that bolts to the column. Those are a common failure on older trucks
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Posted: 1/20/2021 2:25:09 PM EDT
[#10]
Dad has the exact same pick-up.
How old is the battery? Is the dash doing crazy things? Have experienced the turn the key and no click/start quite a few times. I had to replace a fuse and a relay that are for starting along with a bad battery. |
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Posted: 1/20/2021 3:59:58 PM EDT
[#11]
Quote HistoryQuoted: Dad has the exact same pick-up. How old is the battery? Is the dash doing crazy things? Have experienced the turn the key and no click/start quite a few times. I had to replace a fuse and a relay that are for starting along with a bad battery. Battery is less than a year old. In reference to the dash, about 6 months ago, there was a couple days when the dash cluster would "turn off" (all the gauges would go to zero) then "turn on." It never did it consistently enough to really try and figure it out. Then it stopped. I checked all of the fuses and they are fine. |
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Posted: 1/20/2021 5:53:55 PM EDT
[#12]
Age of the battery doesn't matter. Brand new battery could be junk. If it's turning the engine over it's good.
Do you have fuel pressure at the fuel rail?? Is the fuel pump running when you turn the key on?? Could give it a sniff of starting fluid and see if it pops or not. Like others have said ignition switch could be bad. Not the key part but the switch on the steering column. Check those grounds yet?? Had a ground from the battery to engine break under the clamp on the frame. Couldn't see it but boy did the truck do some mighty strange stuff with that ground broken. |
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Posted: 1/20/2021 11:27:31 PM EDT
[#13]
Quote HistoryQuoted: Age of the battery doesn't matter. Brand new battery could be junk. If it's turning the engine over it's good. Do you have fuel pressure at the fuel rail?? Is the fuel pump running when you turn the key on?? Could give it a sniff of starting fluid and see if it pops or not. Like others have said ignition switch could be bad. Not the key part but the switch on the steering column. Check those grounds yet?? Had a ground from the battery to engine break under the clamp on the frame. Couldn't see it but boy did the truck do some mighty strange stuff with that ground broken. Load-tested the battery. It has +/- the CCA it's rated for it. Checked all the grounds. Double-checked the fuses. Replaced all of the ones in the starting circuit, just in case. I get 12v at the fuse that sends power to the relay when the key is turned to start (indicating that the ignition switch is at least sending power to the starter relay I guess?). I haven't made a whole lot of progress, but at least I'm learning a lot about starting systems 
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Posted: 1/21/2021 4:18:39 AM EDT
[#14]
Quote HistoryQuoted: Battery is less than a year old. In reference to the dash, about 6 months ago, there was a couple days when the dash cluster would "turn off" (all the gauges would go to zero) then "turn on." It never did it consistently enough to really try and figure it out. Then it stopped. I checked all of the fuses and they are fine. It is a known problem with Ford and other makes. Give them a call. https://circuitboardmedics.com/car-truck-instrument-cluster-repair/ I need to get dads fixed. |
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Posted: 1/21/2021 1:53:29 PM EDT
[#15]
Quote HistoryQuoted: The dash going dead is part of the problem. It is a known problem with Ford and other makes. Give them a call. https://circuitboardmedics.com/car-truck-instrument-cluster-repair/ I need to get dads fixed. You're saying the dash going dead is a part of my starting problem??? |
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Posted: 1/21/2021 3:43:16 PM EDT
[#16]
Quote HistoryQuoted: You're saying the dash going dead is a part of my starting problem??? Quote HistoryQuoted: Quoted: The dash going dead is part of the problem. It is a known problem with Ford and other makes. Give them a call. https://circuitboardmedics.com/car-truck-instrument-cluster-repair/ I need to get dads fixed. You're saying the dash going dead is a part of my starting problem??? |
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