Spit
New Member
- Joined
- December 9, 2010
- Messages
- 9
- Reaction score
- 1
- City, State
- Columbus Ohio
- Year, Model & Trim Level
- 2002 XL
I am attempting to help my daughter with her 2002 Explorer 4.0 4by4. It will not start it cranks strong but it will not start. I checked the fuel pressure relief valve on the fuel rail and there was no pressure. I checked the fuel pump fuse it was good so I switched the fuel pump relay with an identical relay and still it did not start, still no pressure on the fuel rail.
When I turn the key to the on position I can hear a little whirling sound but it sounds like it is coming from the engine not inside the fuel tank..when I listen down there I really don't hear anything.
I did pull off one sparkplug wire and inserted a spark checker..it shows that it is getting fire. I did not test all 6 cylinders...but I figure no pressure on the rail means I have a fuel delivery problem.
I would like to check all the easy stuff and be sure that it is the pump before dropping the tank that looks like a job! I have changed a fuel pump before on 97 Gran Caravan..that just involved loosening 2 straps. My Haynes book for the Explorer seems to show a lot more supports/braces that have to be loosened or removed
So where and what do you suggest I try next? Can someone tell me how to check that the electrical signal is getting to the pump. I think there is a wiring harness/connector on the passenger side rail. It seems to have 6 or so wires in it ...which ones power the pump. I would assume that if I can verify that 12 volts is getting to the pump and the pump isn't running it's the pump?
I suppose it could be a plugged filter...Where and how do I get to that. I trust that Ican get to that without dropping the tank
Any and all advice welcome.
Thanks
Spit
When I turn the key to the on position I can hear a little whirling sound but it sounds like it is coming from the engine not inside the fuel tank..when I listen down there I really don't hear anything.
I did pull off one sparkplug wire and inserted a spark checker..it shows that it is getting fire. I did not test all 6 cylinders...but I figure no pressure on the rail means I have a fuel delivery problem.
I would like to check all the easy stuff and be sure that it is the pump before dropping the tank that looks like a job! I have changed a fuel pump before on 97 Gran Caravan..that just involved loosening 2 straps. My Haynes book for the Explorer seems to show a lot more supports/braces that have to be loosened or removed
So where and what do you suggest I try next? Can someone tell me how to check that the electrical signal is getting to the pump. I think there is a wiring harness/connector on the passenger side rail. It seems to have 6 or so wires in it ...which ones power the pump. I would assume that if I can verify that 12 volts is getting to the pump and the pump isn't running it's the pump?
I suppose it could be a plugged filter...Where and how do I get to that. I trust that Ican get to that without dropping the tank
Any and all advice welcome.
Thanks
Spit