Welcome Visitor! Please take a few seconds and Killtime8
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- Joined
- May 29, 2011
- Messages
- 10
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- Vehicle Year
- 1991
- Make / Model
- Ford
- Transmission
- Manual
I have a 1990 ford ranger with the 2.9 v6 engine.... Having fuel issues.
KOEO fuel pressure starts at 10 psi and will NOT build pressure, if I cycle key on and off and back on it will raise barely 1 psi each time.
As soon as I start the truck, several cranks, fuel pressure will drop back to around 10 from whatever I finally built it up too..... and it will go up a few psi and drop dramatically.
It will idle seemingly properly but I have to flutter the gas to get it to rev up at all, or BARELY push down the gas to slowly raise the rpms. If I floor the gas it will "bog" down and start to hesitate, sputter, pop, backfire from the intake it seems, and the rpms will start to drop. When I push the needle in at the fuel rail pressure check fuel comes out but with almost no pressure and it seems to be aerated. I have put a new: Fuel filter (2nd new one), fuel pressure regulator and the fuel pump is 4 months old bought brand new from orielys (however its spelt) for 140$...... When I turn the key over the fuel pump is working because: I can hear it and I have the bed off now so I have pulled the lines right on top of fuel tank and watched it spew fuel out. I have busted the incoming fuel line loose at the rail, laid it over the fender, and watched it spit fuel out. So I know I have fuel at the rail.... I have no vacuum leaks as far as I have found, Map sensor is used but should be good and if NOT I have 3 laying around and all of them don't improve the condition ( I have tried putting all 3 on the truck ).
I'm just done messing with this truck, I'm at the end of the line with this thing. Would like some help PLEAAAAAAAAAAAAAAAAASE before I wrap her around a tree.
Thanks alot for looking and help guys, I really mean it
KOEO fuel pressure starts at 10 psi and will NOT build pressure, if I cycle key on and off and back on it will raise barely 1 psi each time.
As soon as I start the truck, several cranks, fuel pressure will drop back to around 10 from whatever I finally built it up too..... and it will go up a few psi and drop dramatically.
It will idle seemingly properly but I have to flutter the gas to get it to rev up at all, or BARELY push down the gas to slowly raise the rpms. If I floor the gas it will "bog" down and start to hesitate, sputter, pop, backfire from the intake it seems, and the rpms will start to drop. When I push the needle in at the fuel rail pressure check fuel comes out but with almost no pressure and it seems to be aerated. I have put a new: Fuel filter (2nd new one), fuel pressure regulator and the fuel pump is 4 months old bought brand new from orielys (however its spelt) for 140$...... When I turn the key over the fuel pump is working because: I can hear it and I have the bed off now so I have pulled the lines right on top of fuel tank and watched it spew fuel out. I have busted the incoming fuel line loose at the rail, laid it over the fender, and watched it spit fuel out. So I know I have fuel at the rail.... I have no vacuum leaks as far as I have found, Map sensor is used but should be good and if NOT I have 3 laying around and all of them don't improve the condition ( I have tried putting all 3 on the truck ).
I'm just done messing with this truck, I'm at the end of the line with this thing. Would like some help PLEAAAAAAAAAAAAAAAAASE before I wrap her around a tree.
Thanks alot for looking and help guys, I really mean it
check the fuel pressure regulator. thats what builds pressure, if you think you have a good pump.
