Fuel and oil pressure guages go erratic and motor cuts out

Asked by Jamie Jun 13, 2020 at 01:21 PM about the 1992 Buick Roadmaster Sedan RWD

Question type: Maintenance & Repair

Fuel gauge jumping all over and engine cuts
out and oil pressure gauge has started doing
the same thing but no check engine light...
Any tips?

2 Answers

1,305

Yes! Your fuel pump sending unit has a shorted wire in the tank. That is causing your pump to cut out and your gauge to act crazy. That is because it is all together in the same unit. You will need a new fuel hanger unit. Don't be be surprised if you don't see fried crispy wires. I have personally had this happen to me 4 different times in my roadmaster wagons (3 different cars) if you leave it along you will blow the fuse in the box under the hood and car will leave you stranded! (Been there done that)

1,305

Try to buy if you can afford it the AC Delco unit. They have the best quality. Good luck! Again been there a few times. Dan

Your Answer:

Own this car?

Share your experience with others.

1992 Buick Roadmaster

Review another car

CarGurus Experts

  • #1
    Rancherodan
    Reputation
    1,220
  • #2
    Rowefast
    Reputation
    380
  • #3
    Gene Arnett
    Reputation
    290
View All

Know more, shop wisely

Search

Related Models For Sale

Used Chevrolet Caprice
6 Great Deals out of 80 listings starting at $3,988
Used Buick Riviera
37 listings
Used Buick LeSabre
8 Great Deals out of 186 listings starting at $1,895
Used Buick Park Avenue
49 listings starting at $1,895
Used Ford F-150
5,866 Great Deals out of 131,415 listings starting at $1,100
Used Lincoln Town Car
16 Great Deals out of 412 listings starting at $1,899
Used Mercury Grand Marquis
9 Great Deals out of 300 listings starting at $1,399

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.