Rustydawg
New Member
- Joined
- Aug 21, 2008
- Messages
- 16
- Reaction score
- 0
- Points
- 0
- Location
- Edmonton, Great White North
- Vehicle Year
- 1992
- Make / Model
- Ford
- Engine Size
- 4.0
- Transmission
- Manual
Guys
I was working on my buddy's 2002 3.0L Ranger today, we changed the fuel filter on spec then took it for a ride to see if a hesitation was cured.
I think the problem is worse now. I put a gauge on the fuel rail and we're seeing between 50 - 60 psi, and pulling / applying manifold vacuum at the pressure regulator doesn't move the pressure at all. It bumps it around a bit, but no real change.
Manifold vacuum is pretty solid at about 17".
Sounds like a shot fuel pressure regulator to me, but I haven't worked on this newer stuff. With my '92 I would expect around 45 psi and it should drop a bunch with manifold vacuum applied.
To make matters worse, it looks like the regulator is part of the fuel rail?? What were they thinking?
I think the regulator is shagged - is this a common problem? Anyone seen anything similar on a similar vintage 3.0?
Thanks
Russ.
I was working on my buddy's 2002 3.0L Ranger today, we changed the fuel filter on spec then took it for a ride to see if a hesitation was cured.
I think the problem is worse now. I put a gauge on the fuel rail and we're seeing between 50 - 60 psi, and pulling / applying manifold vacuum at the pressure regulator doesn't move the pressure at all. It bumps it around a bit, but no real change.
Manifold vacuum is pretty solid at about 17".
Sounds like a shot fuel pressure regulator to me, but I haven't worked on this newer stuff. With my '92 I would expect around 45 psi and it should drop a bunch with manifold vacuum applied.
To make matters worse, it looks like the regulator is part of the fuel rail?? What were they thinking?
I think the regulator is shagged - is this a common problem? Anyone seen anything similar on a similar vintage 3.0?
Thanks
Russ.