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Fuel pump removal

Tiny
DWLEO
  • MEMBER
  • 2005 CHEVROLET MALIBU
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 77,000 MILES
How can I remove the fuel pump from a 2005 Malibu V6? Do I have to drop the tank or is there an access port?

Thanks.
Wednesday, August 24th, 2011 AT 3:12 PM

45 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,505 POSTS
Hello,

There is no access port, sorry you will need to drop the tank. Start by disconnecting the battery and raise the car safely. Here is a couple guides and some diagrams (Below) on how to do the job.

https://www.2carpros.com/articles/jack-up-and-lift-your-car-safely

This guide will give you an idea for how to pull the tank

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

and

https://www.2carpros.com/articles/how-to-use-a-test-light-circuit-tester

Install a new O-ring on the modular fuel sender to tank.
Connect the ventilation harness inside the fuel tank to the bottom of the modular fuel sender cover.
Slowly apply pressure to the top of the spring loaded sender cover until the sender aligns flush with the surface of the tank.

Check out the diagrams (Below)

Please let us know if you need anything else to get the problem fixed.

Cheers, Ken
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Sunday, December 3rd, 2017 AT 8:16 PM
Tiny
07GLIDE
  • MEMBER
  • 1 POST
  • 2005 CHEVROLET MALIBU
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 81,000 MILES
Engine Performance problem
2005 Chevy Malibu 4 cyl Front Wheel Drive Automatic 81000 miles

engine cranks but wont start Im thinking it might be fuel pump, went ahead and replaced fuel filter first. Is the fuel pump on top of fuel tank or is it right by filter
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Sunday, December 3rd, 2017 AT 8:18 PM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
When you turn the key to the on position without cranking the engine over can you hear the fuel pump run in the tank for 5 seconds?

https://www.2carpros.com/articles/car-cranks-but-wont-start

Please run down this guide and report back.
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Sunday, December 3rd, 2017 AT 8:18 PM (Merged)
Tiny
REDWOOD422
  • MEMBER
  • 2 POSTS
  • 2004 CHEVROLET MALIBU
  • 118,000 MILES
I have a 2004 Chevy Classic/Malibu that won't start. The battery is coming on and engine tries to come on. When I asked a few car savvy friends they all said it sounded like my fuel pump went out. I changed it and put more gas into it. It is still not getting that final "connection" to come on. Please help!
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Sunday, December 3rd, 2017 AT 8:18 PM (Merged)
Tiny
REDWOOD422
  • MEMBER
  • 2 POSTS
Yes, crank, no start. The anti-theft light is on. I was reading other questions/posts, and it seems like that goes hand in hand with my problem.
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Sunday, December 3rd, 2017 AT 8:18 PM (Merged)
Tiny
SATURNTECH9
  • MECHANIC
  • 30,869 POSTS
With security light on or flashing means the computer has disabled the fuel injectors because there is a fault somewhere in the antitheft system.I posted how to relearn the pass lock sensor when your done with step 4 after the final time of waiting ten mins shut the key off for 30 seconds and then see if it will start. If it does it may not start the next time. You need to get your body control module codes read which the basic code readers and scanners wont read. You can try a basic code reader to see if it can read any helpful codes. Let me know what you find.
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Sunday, December 3rd, 2017 AT 8:18 PM (Merged)
Tiny
GUDKARMA08
  • MEMBER
  • 1 POST
  • 2003 CHEVROLET MALIBU
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 85,000 MILES
Other Category problem
2003 Chevy Malibu 6 cyl Two Wheel Drive Automatic 85000 miles

how do I install a new fuel pump
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Sunday, December 3rd, 2017 AT 8:18 PM (Merged)
Tiny
SERVICE WRITER
  • MECHANIC
  • 9,123 POSTS
You need to have the vehicle high enough to be able to remove the tank. Once the tank is out, the fuel pump is held in from the top of the tank with a lock ring.
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Sunday, December 3rd, 2017 AT 8:18 PM (Merged)
Tiny
CASSY241
  • MEMBER
  • 1 POST
  • 2003 CHEVROLET MALIBU
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 105,000 MILES
Engine Mechanical problem
2003 Chevy Malibu 6 cyl Front Wheel Drive Automatic 105000 miles

Please tell us how to change a fuel pump in 2003 Malibu
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Sunday, December 3rd, 2017 AT 8:18 PM (Merged)
Tiny
PTRI1`SF3
  • MEMBER
  • 1 POST
  • 2002 CHEVROLET MALIBU
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 129,000 MILES
Engine Mechanical problem
2002 Chevy Malibu 6 cyl Front Wheel Drive Automatic 129000 miles

19,000 miles ago changed fuel filter. New battery run down from cranking. 15 minutes trying to jump
start battery. New electric fuel pump installed Fuel is coming out of fuel rail port. There is no sound coming from new fuel pump. There is a half tank of fuel. Sophisticated diagnostic machine earlier with old pump inside said 1 engine problem but did not clearly identify it. Frien who is mechanic took maint. Free
battery home to charge completely tonight Also definitely getting a spark from plugs Earlier we changed around (with old fuel pump) fuel pump relay with another matching relay figuring they both could not be bad. No difference. Unsure if 19,000 old fuel filter could be the culprit. Unsure if fuel regulator could be a problem instead. Since purchase of vehicle at 42,000 miles from Enterprise, we have not changed timing belt or timing chain; unsure if this could be connected with our problem now. Also, since 42, 00 miiles, htere has been no emissiion control units changed. Within 5,000 miles, we had another local mechanic perform intake manifold regasketing due to antifreeze leak which did not get into oil and vise-versa. Car was running as usual with old fuel pump with lesser mileage and some loss of overdrive power.
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Sunday, December 3rd, 2017 AT 8:18 PM (Merged)
Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
What do you have for fuel pressure
do you have a security light on and or blinking as you cranking
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Sunday, December 3rd, 2017 AT 8:18 PM (Merged)
Tiny
BSTATON
  • MEMBER
  • 1 POST
  • 2002 CHEVROLET MALIBU
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 95,000 MILES
Electrical problem
2002 Chevy Malibu 6 cyl Front Wheel Drive Automatic 95000 miles

how do you release fuel pressure and how do you relplace the fuel pump
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Sunday, December 3rd, 2017 AT 8:18 PM (Merged)
Tiny
BMRFIXIT
  • MECHANIC
  • 19,053 POSTS
Fuel rail has a valve on it
fuel tank has to come down
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Sunday, December 3rd, 2017 AT 8:18 PM (Merged)
Tiny
ADVANCEGUY69
  • MEMBER
  • 2 POSTS
  • 2003 CHEVROLET MALIBU
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 82,700 MILES
Engine Mechanical problem
2003 Chevy Malibu 6 cyl Front Wheel Drive Automatic 82,700 miles

is there an access panel for the fuel pump or do I have to drop the tank?
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Sunday, December 3rd, 2017 AT 8:18 PM (Merged)
Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
Remove carpet in trunk. If accessable from above there will be a round ring with a fuel in/out line and an electrical connector.

If not then you will have to drop tank.

If pump is not coming on, check fuse/relay first before removing pump. In other words, make sure the pump is the problem before you replace it. It may be low oil pressure is shutting off the pump to prevent engine damage.

Unless you hae run the car out of gas a few times, it would be unusual for the pump to be bad in an '03.
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Sunday, December 3rd, 2017 AT 8:18 PM (Merged)
Tiny
PLAYERSCHOOLBOY
  • MEMBER
  • 2 POSTS
  • 2006 CHEVROLET MALIBU
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 80,000 MILES
Engine Mechanical problem
2006 Chevy Malibu 4 cyl Front Wheel Drive Automatic 80000 miles

where is the fuel regulator located and how do I change it? Is the only way of changing the fuel pump is by dropping the tank?
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Sunday, December 3rd, 2017 AT 8:18 PM (Merged)
Tiny
BLACKOP555
  • MECHANIC
  • 10,371 POSTS
The fuel pressure regulator is located on the fuel rail, and there are usually screws that hold it on then it pulls off.

For the fuel pump, I usually drop it other then mess around with access panels. Usually when I have the tank down I check the tank over for rust. And paint it with rust proofer or clean out the outside and the inside to get all the water and old gas and debris out!
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Sunday, December 3rd, 2017 AT 8:18 PM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Can you please be specific with your problem so we can help you.
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Sunday, December 3rd, 2017 AT 8:19 PM (Merged)
Tiny
DMK1970
  • MEMBER
  • 1 POST
  • 2002 CHEVROLET MALIBU
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 15,300 MILES
Shakes or Wobbles problem
2002 Chevy Malibu 6 cyl Front Wheel Drive Automatic 153, 00 miles

I have had my water pump, fuel pump, tune-up already replaced.
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Sunday, December 3rd, 2017 AT 8:19 PM (Merged)
Tiny
EUGENE123
  • MECHANIC
  • 273 POSTS
Remove your thermostat and test it so see if its working
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Sunday, December 3rd, 2017 AT 8:20 PM (Merged)

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