arcwelder
New Member
- Joined
- Oct 21, 2017
- Messages
- 15
- Reaction score
- 0
- Points
- 1
- Vehicle Year
- 2002
- Make / Model
- Ford
- Transmission
- Automatic
Hey Guys,
I have a 2002 Ranger Edge 3.0L gas with 121k miles. A few months ago, it would occasionally crank but not start after being driven for a while (maybe 5+ miles). After sitting for about a day, it would then start right up. Now, it'll crank but not start at all, even when cold. When it doesn't start, I can't hear the fuel pump hum at all when I turn the key on.
I checked the fuses, and they seem good. The fuel pump relay seems good, but I swapped it with a different relay just to make sure, and no luck. The intertia switch hasn't been tripped.
As of now, I'm guessing that it's the fuel pump, but I've also read that it could be the coolant temperature sensor or something else, so I'm trying to go through all the proper steps. I tried checking the voltage at the inertia switch, but got zero volts, but I suspect I might just be doing something wrong. What I did was disconnect the inertia switch, and then I put the negative side of my multimeter to a metal surface within the engine compartment, and the positive end to each of the contacts (one at a time) of the intertia switch connector, and then turned the key to the on position. However, I didn't get any voltage read. Is this the right way to do this?
Also, should I unplug the fuel pump fuse and check for voltage there? If so, does it matter which prong (negative or positive) of my multimeter I stick in each hole?
Something I wanted to mention: I found that I had a coolant leak (from my lower radiator hose), and so the coolant in the radiator was a little low (maybe ~3 inches from the top). The truck never overheated and the radiator is now correctly filled, but I'm not sure if this could have been the cause of my problem (maybe it damaged the coolant temperature sensor, etc.?).
Any thoughts on what the problem might be and how to best go about troubleshooting would be much appreciated. Thanks in advance.
I have a 2002 Ranger Edge 3.0L gas with 121k miles. A few months ago, it would occasionally crank but not start after being driven for a while (maybe 5+ miles). After sitting for about a day, it would then start right up. Now, it'll crank but not start at all, even when cold. When it doesn't start, I can't hear the fuel pump hum at all when I turn the key on.
I checked the fuses, and they seem good. The fuel pump relay seems good, but I swapped it with a different relay just to make sure, and no luck. The intertia switch hasn't been tripped.
As of now, I'm guessing that it's the fuel pump, but I've also read that it could be the coolant temperature sensor or something else, so I'm trying to go through all the proper steps. I tried checking the voltage at the inertia switch, but got zero volts, but I suspect I might just be doing something wrong. What I did was disconnect the inertia switch, and then I put the negative side of my multimeter to a metal surface within the engine compartment, and the positive end to each of the contacts (one at a time) of the intertia switch connector, and then turned the key to the on position. However, I didn't get any voltage read. Is this the right way to do this?
Also, should I unplug the fuel pump fuse and check for voltage there? If so, does it matter which prong (negative or positive) of my multimeter I stick in each hole?
Something I wanted to mention: I found that I had a coolant leak (from my lower radiator hose), and so the coolant in the radiator was a little low (maybe ~3 inches from the top). The truck never overheated and the radiator is now correctly filled, but I'm not sure if this could have been the cause of my problem (maybe it damaged the coolant temperature sensor, etc.?).
Any thoughts on what the problem might be and how to best go about troubleshooting would be much appreciated. Thanks in advance.