Bootz1385
New Member
- Joined
- Feb 18, 2021
- Messages
- 28
- Reaction score
- 3
- Points
- 3
- Location
- Columbia,TN
- Vehicle Year
- 1986
- Make / Model
- Ford Ranger
- Engine Type
- 2.9 V6
- Transmission
- Manual
- 2WD / 4WD
- 2WD
Hello everyone. I have been on the forum for days reading post about issues that I have going on. I have tested my little heart out and am now turning to you guys to see if I missed anything.
The Truck: 1986 Ford Ranger 2.9L manual 2wd extended cab. odometer read 59,883 but am 1000% sure it is 159,883
The story: I bought the truck off a guy that was selling two of these trucks. the single cab had a bent frame from the wreck, So I only bought the extended cab. The truck has been sitting for about 6 months as the guys kid went to prison and left the truck. The guy said the truck was stalling out on him so he started to figure out what was going on as he went back to prison. I got the truck home and the wires were just twisted together for the fusible links and what not. So I busted out the ranger bible ( the Hayne's manual) and put the wiring back to normal and soldered everything back up. then I started the testing, These are my issues.
The Issues:
1. Very slow crank. The truck just doesn't want to turn. I pulled three different batteries from around the shop that are all good. None of them changed the crank speed so I bought a brand new 56 series and still nothing. reading up on the forums, I change the battery wires from the battery to the starter solenoid, from the solenoid to the starter, the ground to the frame and from the frame to the battery. Still nothing. So then I changed the starter solenoid to see if that would help and nope. The Starter looks to be new as everything on the underside of the truck is caked in oil and the starter is shiny still. so that's where I am at with that.
2. Very weak spark. before I started changing parts. I had weal spark but it was yellow. So I figured it was a bad cap and button. Took them off and cleaned them both up. No change. Changed on the TFI to see if that is bad as the forums say they go out a lot and I know this from a old Escort I had. still and it got worse. The spark is now very faint and yellow if it does spark.. Went and got a coil even though I tested the coil and it was good but thought "what the heck". Still nothing. That is where I stopped with that.
3. No fuel Prime. This is the first issue I looked at as it was what the guy I bought it from said the issue was. I first started at the pump. No power. So I went the the inertia switch. No Power. So I went to the relay. boom I have power at the main port (yellow wire). I have ground at the ground port (orange/light blue stripe). The switch port ( red wire) and the switch ground port (brown/ light green stripe) there is nothing. With the key on I still have main power and ground ( yellow and orange/light blue stripe), the switch (red wire0 gets 12volts but has no prime cycle. The ground switch (brown/light green stripe) still has no power or ground. I jumped the relay from main power to main ground ports ( yellow to orange/light blue) and pumps come on strong. I can also jump main power to switch (yellow to red) and pumps come on. If I jump ground to any of them, I get nothing. Tried to ground the obd1 fuel pump port and got nothing. went down by the computer and the computer hold down screw was loose and there was a broken ground. fixed the ground and it was still the same. I changed all three relays and still the same. I have headlight and tail lights ( read in a forum that was a sign of something I can't remember now). So this is where I turned to Y'all to help a guy out after 2 days of headaches.
So I pulled the computer and it is a remanufactured unit. The number on the paper is -4258 as it is worn and can't read the whole number. The DC Code is 0603** as that is worn too. There was a piece of tape over the bar code. Don't know if that is when the remanufacture painted it or if the guys son did that. The 2 letter code is RP which the look up says is from a Ranger/BII 2.9L auto. Mine is a Manual. Would that cause all my issues? Only thing I haven't tried is the EGR sensor as I read that was an Issue for another guy. I really need to get this truck running good so I can start the Frame off resto of my 88 Ranger with the 2.3L That I will be picking up next week. Thanks in advance for all your help and look forward to figuring this all out with y'all.
P.S. This is my first forum post ever and sorry for that long post. Wanted to put as much info as I could.
The Truck: 1986 Ford Ranger 2.9L manual 2wd extended cab. odometer read 59,883 but am 1000% sure it is 159,883
The story: I bought the truck off a guy that was selling two of these trucks. the single cab had a bent frame from the wreck, So I only bought the extended cab. The truck has been sitting for about 6 months as the guys kid went to prison and left the truck. The guy said the truck was stalling out on him so he started to figure out what was going on as he went back to prison. I got the truck home and the wires were just twisted together for the fusible links and what not. So I busted out the ranger bible ( the Hayne's manual) and put the wiring back to normal and soldered everything back up. then I started the testing, These are my issues.
The Issues:
1. Very slow crank. The truck just doesn't want to turn. I pulled three different batteries from around the shop that are all good. None of them changed the crank speed so I bought a brand new 56 series and still nothing. reading up on the forums, I change the battery wires from the battery to the starter solenoid, from the solenoid to the starter, the ground to the frame and from the frame to the battery. Still nothing. So then I changed the starter solenoid to see if that would help and nope. The Starter looks to be new as everything on the underside of the truck is caked in oil and the starter is shiny still. so that's where I am at with that.
2. Very weak spark. before I started changing parts. I had weal spark but it was yellow. So I figured it was a bad cap and button. Took them off and cleaned them both up. No change. Changed on the TFI to see if that is bad as the forums say they go out a lot and I know this from a old Escort I had. still and it got worse. The spark is now very faint and yellow if it does spark.. Went and got a coil even though I tested the coil and it was good but thought "what the heck". Still nothing. That is where I stopped with that.
3. No fuel Prime. This is the first issue I looked at as it was what the guy I bought it from said the issue was. I first started at the pump. No power. So I went the the inertia switch. No Power. So I went to the relay. boom I have power at the main port (yellow wire). I have ground at the ground port (orange/light blue stripe). The switch port ( red wire) and the switch ground port (brown/ light green stripe) there is nothing. With the key on I still have main power and ground ( yellow and orange/light blue stripe), the switch (red wire0 gets 12volts but has no prime cycle. The ground switch (brown/light green stripe) still has no power or ground. I jumped the relay from main power to main ground ports ( yellow to orange/light blue) and pumps come on strong. I can also jump main power to switch (yellow to red) and pumps come on. If I jump ground to any of them, I get nothing. Tried to ground the obd1 fuel pump port and got nothing. went down by the computer and the computer hold down screw was loose and there was a broken ground. fixed the ground and it was still the same. I changed all three relays and still the same. I have headlight and tail lights ( read in a forum that was a sign of something I can't remember now). So this is where I turned to Y'all to help a guy out after 2 days of headaches.
So I pulled the computer and it is a remanufactured unit. The number on the paper is -4258 as it is worn and can't read the whole number. The DC Code is 0603** as that is worn too. There was a piece of tape over the bar code. Don't know if that is when the remanufacture painted it or if the guys son did that. The 2 letter code is RP which the look up says is from a Ranger/BII 2.9L auto. Mine is a Manual. Would that cause all my issues? Only thing I haven't tried is the EGR sensor as I read that was an Issue for another guy. I really need to get this truck running good so I can start the Frame off resto of my 88 Ranger with the 2.3L That I will be picking up next week. Thanks in advance for all your help and look forward to figuring this all out with y'all.
P.S. This is my first forum post ever and sorry for that long post. Wanted to put as much info as I could.