1982mercury grand Marquis

Asked by Mar 12, 2018 at 11:06 AM about the 1983 Mercury Grand Marquis

Question type: Maintenance & Repair

Change manual fuel pump and
still having problems keeping fuel
to the carburetor overloading at

2 Answers



You can check fuel pressure with a mechanical gauge but I doubt high fuel pressure is the cause, it's hard for a fuel pump alone to push the needle off the seat., Much more likely is your fuel pump is sucking up debris from the tank and that is jamming up the needle causing your fuel issues - try a really high quality fuel filter in place of the stock one. If the fuel tank is the original one from 1983, then it could be loaded up with all kinds of crud. (you may even want to drop the tank and give it a thorough inspection and cleaning.)

Your Answer

Mercury Grand Marquis Experts

  • #1
    Tracy Hooks
  • #2
  • #3
View All

Related Models For Sale

Used Lincoln Town Car
12 listings starting at $1,850
Used Chevrolet Impala
153 Great Deals out of 1,098 listings starting at $2,488
Used Dodge Charger
62 Great Deals out of 769 listings starting at $3,400
Used Ford F-150
521 Great Deals out of 9,917 listings starting at $3,490
Used Ford Mustang
1,030 listings starting at $3,900
Used Cadillac DeVille
17 listings
Used Honda Accord
60 Great Deals out of 1,259 listings starting at $1,350

Used Cars For Sale

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.