External fuel pump
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Senior User
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I not even thinking of installing it. I am concerned that by doing so, I could cause some damage to other components. What do you think? Should I try it out?
Since you mentioned it, yeah, you should have consulted the team of lads here trying to help you before spending money.
But, like I said, all the "S1B" versions I’ve seen were "GS1", so we'll hope for the best.
Post the label when you receive it. Compare the pin configuration to your other computer before you install.
If it is the right one, clean the pins, it’s been sitting on a shelf for years. You can re-grease after your troubleshooting is completed. V~
But, like I said, all the "S1B" versions I’ve seen were "GS1", so we'll hope for the best.
Post the label when you receive it. Compare the pin configuration to your other computer before you install.
If it is the right one, clean the pins, it’s been sitting on a shelf for years. You can re-grease after your troubleshooting is completed. V~
Cargo Master
Joined: Jun 2013
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From: Somewhere n North America
Actually, I think it's the sensors and such that fry the computers, not the other way around.
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I was concerned that it could hurt my tranny if it's not calibrated for a 3 speed, C6. I just had that rebuilt and don't want to screw it up.
Fleet Owner
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From: Easton,Ks
Here's why I'm not in favor of having two threads going on the same topic: On just this one thread I keep seeing reference to the test connector having a "1" on it when it should have 5 volts. If we aren't getting codes shouldn't this be run to ground? It doesn't seem correct and yet there seems to be no answer.
/
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Hello subford-
I am sorry to tell you that I do not understand the schematic you sent. So if you can explain it in terms that a neophyte will understand, I will appreciate it.
Especially helpful will be as explanation as to what steps I am to take, if you have the time.
Thanks!!
I am sorry to tell you that I do not understand the schematic you sent. So if you can explain it in terms that a neophyte will understand, I will appreciate it.
Especially helpful will be as explanation as to what steps I am to take, if you have the time.
Thanks!!
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Vincent -
By the way, I think cleaning the connectors and using the deelectric grease on all connections did the trick with regard to the fuel pump issues. Started right up this morning. It didn't rain last night but it is very humid. Typically, it would have the problem we discussed with high humidity as well. Not today!
By the way, I think cleaning the connectors and using the deelectric grease on all connections did the trick with regard to the fuel pump issues. Started right up this morning. It didn't rain last night but it is very humid. Typically, it would have the problem we discussed with high humidity as well. Not today!
Old School Hot Rodder
Joined: Feb 2006
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From: Exmore, VA
The transmissions in 1985 are not computer controlled, the only real difference between auto and manual is the idle control program. Considering the sheer number of computer changes Ford went through that year and a half and the fact that a number of things in the design were changed in 1987, I would imagine any one for an automatic trans will work.
pedant
Joined: Jan 2008
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From: EXTREME southwest CT
Dont worry about that.
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Cargo Master
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From: Somewhere n North America
What is the build date of you truck? Sticker inside you drivers door frame.
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The sticker is so damaged and the printing on it so faded that it can't be read. It looks like 1/86, but I can't really see it clearly, even with a magnifying glass.
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I'm confused. Are you saying the numbers at the end (GS1) aren't significant enough to cause it not to work correctly?
The transmissions in 1985 are not computer controlled, the only real difference between auto and manual is the idle control program. Considering the sheer number of computer changes Ford went through that year and a half and the fact that a number of things in the design were changed in 1987, I would imagine any one for an automatic trans will work.
Fleet Owner
Joined: Aug 2005
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From: Easton,Ks
Hello subford-
I am sorry to tell you that I do not understand the schematic you sent. So if you can explain it in terms that a neophyte will understand, I will appreciate it.
Especially helpful will be as explanation as to what steps I am to take, if you have the time.
Thanks!!
I am sorry to tell you that I do not understand the schematic you sent. So if you can explain it in terms that a neophyte will understand, I will appreciate it.
Especially helpful will be as explanation as to what steps I am to take, if you have the time.
Thanks!!
The diagram just shows the inside of the computer that the STI input wire goes to a buffer chip and then on to the main computer processor.
When the STI2 pin HS:I 3 goes low (grounds) the computer processor will start its self-test program when the computer gets power on on its VPWR wire at pins 37 & 57.
No I was not saying you had something to do here. Just giving why you might only have 1 volt at the STI wire.
Cargo Master
Joined: Jun 2013
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From: Somewhere n North America
OK, I understand. But try again. Look closer.
Last edited by vjsimone; Jul 15, 2016 at 07:32 AM. Reason: Adding text
Cargo Master
Joined: Jun 2013
Posts: 3,182
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From: Somewhere n North America
Vincent -
By the way, I think cleaning the connectors and using the deelectric grease on all connections did the trick with regard to the fuel pump issues. Started right up this morning. It didn't rain last night but it is very humid. Typically, it would have the problem we discussed with high humidity as well. Not today!
By the way, I think cleaning the connectors and using the deelectric grease on all connections did the trick with regard to the fuel pump issues. Started right up this morning. It didn't rain last night but it is very humid. Typically, it would have the problem we discussed with high humidity as well. Not today!
FTE Legend
Joined: Jul 2010
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From: Northeast, OK
What I am saying is if your meter is loading the STI circuit you may only get 1 volt and another meter that dose not load the circuit much at all may read 5 volts.
The diagram just shows the inside of the computer that the STI input wire goes to a buffer chip and then on to the main computer processor.
When the STI2 pin HS:I 3 goes low (grounds) the computer processor will start its self-test program when the computer gets power on on its VPWR wire at pins 37 & 57.
No I was not saying you had something to do here. Just giving why you might only have 1 volt at the STI wire.
The diagram just shows the inside of the computer that the STI input wire goes to a buffer chip and then on to the main computer processor.
When the STI2 pin HS:I 3 goes low (grounds) the computer processor will start its self-test program when the computer gets power on on its VPWR wire at pins 37 & 57.
No I was not saying you had something to do here. Just giving why you might only have 1 volt at the STI wire.
Sqauvry - What meter are you using? Can you post a close-up picture of it?
Now that the truck seems to be running correctly, the lack of codes is the only problem - right? So why not troubleshoot that rather than continue to buy computers?