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TitaniumCoder477
Member
- Joined
- Jul 24, 2022
- Messages
- 7
- City
- North Carolina
- Vehicle Year
- 1994
- Engine
- 4.0 V6
- Transmission
- Automatic
Hey guys, I came across this forum during my research into my 1994 Ford Ranger XLT 4.0L's start symptoms. I read through https://www.therangerstation.com/fo.../1994-ranger-low-voltage-at-fuel-pump.176150/ which was very helpful. I don't wish to hijack that, and since my symptom seems to be different, I figured to start a thread here. I would be grateful for any help!
Background:
1. Truck has long taken three starts to get running, but after running has been fine. I figured it was just because I drive it once or twice a week.
2. A couple weeks ago, I drove the truck with the dogs up to the park a few miles away, walked them around the park, and then drove back. Half way home, while sitting at a stop light, the truck died. Would not turn over. Lights barely on.
3. My friend jump started the truck, but I had to keep revving it to keep it going.
4. When we disconnected the jumper cables, I still had to keep revving it to keep it going and it seemed to fight me. Really wanted to die. Finally it did.
5. I got it towed home.
6. I brought the battery in the house that night and tried to charge it but without success.
7. I took it to the battery shop to have them test. They charged it overnight and then load tested it the next day. It failed immediately.
8. I bought a refurbished battery and reinstalled it in the truck.
9. Now the truck turns over without issue, but it will not start.
Symptoms/tests:
1. When I spray fuel starter in the intake, the truck attempts to fire. That is, I can tell the spark plugs fire at least once or twice. But there's obviously not enough fuel to actually start it. This makes me think it's a fuel issue.
2. When I turn the key, the fuel pump does not come on.
3. But when I bypass the fuel pressure relay, i.e. jumping the pins, I can hear the fuel pump start and fuel flow to the front. However, the truck still will not start, neither with this running for a few minutes or while it is running.
4. When I check the fuel pressure, I get nothing during repeat turns of the key. However, when I bypass the fuel pressure relay, I get pressure around 50psi (if I recall).
5. I checked the inertia switch, and it was not tripped. When I bypass it, the truck still will not start.
6. I bought a spare fuel pump relay, and since it is the same as the EEC relay, I swapped it around and tested, but the symptom remains.
7. I tested all the fuses in the engine compartment with my multi-meter.
8. I pulled the EEC and checked the capacitors. They are in the same condition that I left them when I replaced them years ago. That is, nothing appears to have deteriorated beyond what I remember it being. That said, the EEC is old and my soldering job wasn't the greatest at the time, so it could potentially be replaced, as long as I can rule out everything else.
9. I disconnected what I think is the front O2 sensor (accessible from the engine compartment on the driver side) per https://www.2carpros.com/questions/ford-ranger-1994-ford-ranger-fuel-pump, but the symptom remained.
10. No check engine light is on. Dash looks and functions fine.
Things I've replaced:
1. I went ahead and replaced the fuel pump.
2. I also replaced the fuel pressure regulator.
3. I also replaced the fuel pump relay.
Background:
1. Truck has long taken three starts to get running, but after running has been fine. I figured it was just because I drive it once or twice a week.
2. A couple weeks ago, I drove the truck with the dogs up to the park a few miles away, walked them around the park, and then drove back. Half way home, while sitting at a stop light, the truck died. Would not turn over. Lights barely on.
3. My friend jump started the truck, but I had to keep revving it to keep it going.
4. When we disconnected the jumper cables, I still had to keep revving it to keep it going and it seemed to fight me. Really wanted to die. Finally it did.
5. I got it towed home.
6. I brought the battery in the house that night and tried to charge it but without success.
7. I took it to the battery shop to have them test. They charged it overnight and then load tested it the next day. It failed immediately.
8. I bought a refurbished battery and reinstalled it in the truck.
9. Now the truck turns over without issue, but it will not start.
Symptoms/tests:
1. When I spray fuel starter in the intake, the truck attempts to fire. That is, I can tell the spark plugs fire at least once or twice. But there's obviously not enough fuel to actually start it. This makes me think it's a fuel issue.
2. When I turn the key, the fuel pump does not come on.
3. But when I bypass the fuel pressure relay, i.e. jumping the pins, I can hear the fuel pump start and fuel flow to the front. However, the truck still will not start, neither with this running for a few minutes or while it is running.
4. When I check the fuel pressure, I get nothing during repeat turns of the key. However, when I bypass the fuel pressure relay, I get pressure around 50psi (if I recall).
5. I checked the inertia switch, and it was not tripped. When I bypass it, the truck still will not start.
6. I bought a spare fuel pump relay, and since it is the same as the EEC relay, I swapped it around and tested, but the symptom remains.
7. I tested all the fuses in the engine compartment with my multi-meter.
8. I pulled the EEC and checked the capacitors. They are in the same condition that I left them when I replaced them years ago. That is, nothing appears to have deteriorated beyond what I remember it being. That said, the EEC is old and my soldering job wasn't the greatest at the time, so it could potentially be replaced, as long as I can rule out everything else.
9. I disconnected what I think is the front O2 sensor (accessible from the engine compartment on the driver side) per https://www.2carpros.com/questions/ford-ranger-1994-ford-ranger-fuel-pump, but the symptom remained.
10. No check engine light is on. Dash looks and functions fine.
Things I've replaced:
1. I went ahead and replaced the fuel pump.
2. I also replaced the fuel pressure regulator.
3. I also replaced the fuel pump relay.
