Speedwagon
Member
- Joined
- Apr 8, 2008
- Messages
- 248
- Reaction score
- 8
- Points
- 18
- Vehicle Year
- 2002
- Make / Model
- Ford
- Engine Type
- 4.0 V6
- Transmission
- Automatic
- 2WD / 4WD
- 4WD
2002 4.0
After replacing plugs and wires, I've been getting idle misfires, but no codes. Decided to check fuel pressure, especially since it's been getting harder to start lately. If I turn on/off multiple times, it will start right up.
Hooked up the gauge today, and I get instant fuel pressure drop. If I turn it on(not running) about 4 times, the pressure builds up to around 45/50psi. But starts to drop instantly. Once I crank it over, the pressure is holding around 65psi, and only slightly dips when I throttle it.
1: Where is the fuel pressure regulator on these?
2: Does it seem like the pump or FPR at this point?
After replacing plugs and wires, I've been getting idle misfires, but no codes. Decided to check fuel pressure, especially since it's been getting harder to start lately. If I turn on/off multiple times, it will start right up.
Hooked up the gauge today, and I get instant fuel pressure drop. If I turn it on(not running) about 4 times, the pressure builds up to around 45/50psi. But starts to drop instantly. Once I crank it over, the pressure is holding around 65psi, and only slightly dips when I throttle it.
1: Where is the fuel pressure regulator on these?
2: Does it seem like the pump or FPR at this point?