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How to replace fuel pump

Tiny
WB
  • MEMBER
  • 2005 FORD RANGER
  • 4 CYL
  • 2WD
  • MANUAL
  • 37,000 MILES
Hi, I am getting no fuel to the engine, and hear no pump priming whin I turn the key on. How do I diagnose and change the fuel pump?

Thanks much WB
Saturday, May 17th, 2008 AT 4:19 PM

23 Replies

Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
Fuel pump module is in the fuel tank the only way out tank must come down. Here is a guide to help walk you through the steps.

https://www.2carpros.com/articles/how-to-replace-an-electric-fuel-pump

Please let us know if you need anything else to get the problem fixed.
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Saturday, May 17th, 2008 AT 6:16 PM
Tiny
CHRISNANN
  • MEMBER
  • 1 POST
  • 2005 FORD RANGER
  • 135,000 MILES
My 2005 Ford Ranger (3.0L V6 - Edge package - 135,000 miles) died while driving a few days ago. It wouldn't start again until the next day, and then died after running for 1-2 minutes (as if it wasn't getting fuel). This happened approx. 2 years ago; I replaced the fuel pump and inertia swtitch, and (except for an intermittent "check engine" light, during which it would use more fuel and sometimes idle roughly) it ran fine until it died a few days ago. I recently replaced plugs, plug wires, ignition coil, and fuel filter; the fuses and relays all checked good, and my battery and alternator tested good at an auto parts store. I even pulled the fuel pump and inspected it - it looked as clean as when I installed it 2 years ago, but I really don't know what to be looking for. Right now I'm completely at a loss to figure out what the problem(s) may be.
What do you suspect could be causing this?
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Sunday, March 31st, 2019 AT 11:10 AM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Check engine light on

https://www.2carpros.com/articles/service-engine-soon-or-check-engine-light-on-or-flashing

Have the computer scanned for code/s-you have a problem within the engine management system that caused the CEL to turn on-This is your starting point of diagnosis,finding out what's going on.
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Sunday, March 31st, 2019 AT 11:10 AM (Merged)
Tiny
TINAHORNBROOK
  • MEMBER
  • 1 POST
  • 2005 FORD RANGER
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 30,000 MILES
Fuel pump was replaced 4 weeks ago, as the truck was just stalling while driving, now the problem is starting all over again. While driving the truck just stalls, and will not restart for a few hours. Then the truck starts and runs for a week or so, and the problem shows up again. Please help
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Sunday, March 31st, 2019 AT 11:10 AM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Lets recheck the fuel pressure before we blame the fuel pump again and comeback with the readings-could also be the fuel pump relay or the inertia switch throwing a fit
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Sunday, March 31st, 2019 AT 11:10 AM (Merged)
Tiny
RUSTYWEST
  • MEMBER
  • 1 POST
  • 2004 FORD RANGER
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 40,000 MILES
My husband has been told to: 1) drop the fuel tank to replace the fuel pump & 2) pull the bed off the truck to replace the fuel pump. Are either of these the correct way?
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Sunday, March 31st, 2019 AT 11:10 AM (Merged)
Tiny
FAIRRACING31
  • MECHANIC
  • 150 POSTS
Yes, you can pull the bed off or drop the tank. I find it faster and easier to pull the bed off, but only if you have help to do it.
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Sunday, March 31st, 2019 AT 11:10 AM (Merged)
Tiny
DONMIM
  • MEMBER
  • 5 POSTS
  • 2002 FORD RANGER
  • 120,000 MILES
Our Ranger recently died on us, we took it to a nearby dealership and they are telling us they will need to replace the inertia switch, the fuel pump, and the fuel pump relay. They said it looks like the resistance from the fuel pump burned up the inertia switch and fuel pump relay. Parts and Labor will be around $2,000 plus tax.

Does that sound reasonable? I did call another mechanic and he said it sounded fishy, that he has never heard of that happening. But he hasn't had the truck in front of him to diagnose.
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Sunday, March 31st, 2019 AT 11:10 AM (Merged)
Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
It does sound fishy I know those inertia switches go bad and they have a relocation kit for the new one. Let me see if I can find a bulletin for that year one.
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Sunday, March 31st, 2019 AT 11:10 AM (Merged)
Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
It looks like your inertia switch is already under the right kick panel where they relocate them too on the earlier trucks. Usually when a fuel pump fails it will pop a fuse. They usually don't take out the interia switch or relay. That's why they put a fuse in the circuit to protect the wires components and reduces chances of fires. What is your zip code so I can see what a fair price for a fuel pump in your area is.
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Sunday, March 31st, 2019 AT 11:10 AM (Merged)
Tiny
DONMIM
  • MEMBER
  • 5 POSTS
Thank you for your help! We are in Seattle- 98126
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Sunday, March 31st, 2019 AT 11:10 AM (Merged)
Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
Forgot to ask what size engine do you have?
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Sunday, March 31st, 2019 AT 11:10 AM (Merged)
Tiny
DONMIM
  • MEMBER
  • 5 POSTS
V6 4.0 Liter, other info- 4WD XL off road package, 2-Door Supercab
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Sunday, March 31st, 2019 AT 11:10 AM (Merged)
Tiny
PETERBL
  • MEMBER
  • 2 POSTS
  • 2002 FORD RANGER
  • 6 CYL
  • 4WD
  • MANUAL
  • 87,000 MILES
I have trouble starting the truck on cold mornings. The problem has worsened. Ether usually gets it going but did not work the other day. It was 19 degrees out.
The fuel filter was changed but did not cure the problem. Two things have been suggested: Replacing the fuel pump because the pressure might be too low for cold starts. And two, a fuel enrichment valve has a loose wire or needs replacing. I can't find any reference to this enrichment valve. Please tell me what you think. Thanks,
Pete L
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Sunday, March 31st, 2019 AT 11:10 AM (Merged)
Tiny
RACEFAN966
  • MECHANIC
  • 5,029 POSTS
Ok no cold start valve on this engine first off. You need to check the resistance (ohm's) of the coolant temp sensor get back to me with that and the temp of the engine at time of check and I will let you know if it is bad ok. Thanks.
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Sunday, March 31st, 2019 AT 11:10 AM (Merged)
Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
I am having trouble with my estimate program but its 2hrs labor for the fuel pump replacement and.7hrs for replacing the inertia switch. Ask them for a break down of each labor charge and part charge?Let me know so I can see what there charging yo so much for. Because if you figure 3hrs labor say 375 labor on the way high end. Those are some expensive parts.
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Sunday, March 31st, 2019 AT 11:10 AM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Have the fuel pressure checked out -if okay start by checking the coolant temperature sensor resistances


https://www.2carpros.com/forum/automotive_pictures/12900_CTS_values_2.jpg



The CTS is similar in operation with a choke on a carb system its job is to tell the computer to give fuel -lengthening the pulse width -cold engine needs more fuel during initial cold starts.

HTH
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Sunday, March 31st, 2019 AT 11:10 AM (Merged)
Tiny
DONMIM
  • MEMBER
  • 5 POSTS
Here's a break down of the itemized estimate they gave me-

DIAGNOSIS $250.00
FUEL PUMP FEEDING BACK TOO HIGH RESISTANCE AND SHORTING OUT FUEL PUMP, INERNTIA SWITCH, INERTIA SWITCH WIRING HARNESS, AND FUEL PUMP RELAY.
RELAY -$2.10
FUEL PUMP -$541.27, labor- $375.00
INERTIA SWITCH -$77.00 labor- $187.50
INERTIA SWITCH HARNESS- $45.50
FUEL FILTER -$51.22, labor- $62.50
S.S. - $85.00
Subtotal- $1,677.09
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Sunday, March 31st, 2019 AT 11:10 AM (Merged)
Tiny
PETERBL
  • MEMBER
  • 2 POSTS
Thank you both for your input. I have the means to check this but need to know where the CTS is located. Is it on the radiator the hoses. Don, t know what I am looking for. Thanks
PeterBL
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Sunday, March 31st, 2019 AT 11:10 AM (Merged)
Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
That's some crazy labor charges I only see 2hrs labor to replace the fuel pump and.7hrs for the interia switch. Suggested list price on the fuel pump is 421.67 the fuel filter is 36.71 the interia switch is 61. So I would take it some where else. To have it looked at and repaired.
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Sunday, March 31st, 2019 AT 11:10 AM (Merged)

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