Viva*the*Ranger
New Member
- Joined
- Nov 1, 2008
- Messages
- 2,108
- Reaction score
- 43
- Points
- 0
- Location
- Bellingham, Wa.
- Vehicle Year
- 2003
- Make / Model
- Ford
- Engine Size
- 4.0
- Transmission
- Automatic
Hey folks! It's been a while since I posted, but I was hoping to pick you brains.
My fiancee has a 2001 Ranger 4.0 4x4, 152k miles, and no records of fuel pump or filter replacements. It's been having trouble starting, so I figured it was fuel related. I had her prime the line by turning the key forward a couple times before starting it for about a week. That worked, so I went and bought a fuel pressure gauge. Sure enough, it registered about 2 PSI on the first prime, and 20 PSI on the second prime. I started it, and it registered 67 PSI (right where it's supposed to be)
I replaced the filter hoping that would do it, and it helped tremendously. It now registers around 50 after priming it. That's not an exact figure, cause I don't have her here to turn the ignition for me, so I have to jump out of the cab and check. There is a certain amount of PSI lost in those few seconds.
My question for you is; since pressure is correct during operation, but low upon priming, does this indicate a bad (in tank) fuel pump? I'm assuming the high pressure pump is good, given the operating PSI is where it's supposed to be.
We're getting married on July 19th, so we're trying to spend as little money as possible. Thus I would like to replace only one pump, and not both! What is your opinion?
Thanks in advance!
Regards,
Chris
My fiancee has a 2001 Ranger 4.0 4x4, 152k miles, and no records of fuel pump or filter replacements. It's been having trouble starting, so I figured it was fuel related. I had her prime the line by turning the key forward a couple times before starting it for about a week. That worked, so I went and bought a fuel pressure gauge. Sure enough, it registered about 2 PSI on the first prime, and 20 PSI on the second prime. I started it, and it registered 67 PSI (right where it's supposed to be)
I replaced the filter hoping that would do it, and it helped tremendously. It now registers around 50 after priming it. That's not an exact figure, cause I don't have her here to turn the ignition for me, so I have to jump out of the cab and check. There is a certain amount of PSI lost in those few seconds.
My question for you is; since pressure is correct during operation, but low upon priming, does this indicate a bad (in tank) fuel pump? I'm assuming the high pressure pump is good, given the operating PSI is where it's supposed to be.
We're getting married on July 19th, so we're trying to spend as little money as possible. Thus I would like to replace only one pump, and not both! What is your opinion?
Thanks in advance!
Regards,
Chris
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