2003 buick century no power to fuel pump. Cranks no start

Asked by Azcanyoneer Dec 03, 2019 at 08:42 PM about the 2003 Buick Century Custom Sedan FWD

Question type: Maintenance & Repair

I have a 2003 Buick century that was running fine. Parked in front of the house and wouldn't start later.  I have no power to fuel pump relay.  I have already tested every fuse and relay I could find.  I was able to jump the relay and get the car to start and run.  Could this be a security device issue? Any help would be appreciated

2 Answers


Security system on a 2003 Buick Century? LOL. How is the alternator have you checked it lately? Do the lights flicker when you try to start it? Start there.

Jon, Security system....um yes, it has a resister in the ignition key. These will normally keep the engine from cranking over if damaged or absent, I've had to bypass some to get a car to start but I have never had one stop a relay for the fuel pump before. I read in other threads that this could be a possible cause but never saw a resolution. As to your alternator suggestion, if the battery is fully charged, what would the alternator do to keep the computer from sending a signal to the fuel pump relay on start?

Your Answer:

Sell Your Car Yourself

With a simple, secure transaction.

2003 Buick Century Custom Sedan FWD

I have a different car

Buick Century Experts

  • #1
    Bruce Sampson
  • #2
    John Saffrahn
  • #3
View All

Know more, shop wisely


Related Models For Sale

Used Buick LeSabre
512 listings
Used Buick Regal
56 Great Deals out of 1,691 listings starting at $1,325
Used Buick Park Avenue
110 listings
Used Chevrolet Impala
274 Great Deals out of 11,691 listings starting at $1,200
Used Honda Accord
893 Great Deals out of 61,686 listings starting at $800
Used Chevrolet Malibu
735 Great Deals out of 39,128 listings starting at $1,450
Used Honda Civic
797 Great Deals out of 70,265 listings starting at $1,900
Used Toyota Camry
1,082 Great Deals out of 58,662 listings starting at $1,490
Used Hyundai Elantra
558 Great Deals out of 40,080 listings starting at $1,750

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.