How do you know when the fuel pump is going bad on a 1990 420 sel

Asked by thrillbenz Nov 07, 2013 at 07:05 AM about the Mercedes-Benz S-Class

Question type: Maintenance & Repair

The car is starts fine but when you drive a distance it starts to hesistate as if its running out of gas. the car cuts offs restarts drives alittle ok and returns to the same

1 Answer

3,305

It could also be your fuel pressure regulator going bad you might want to have it checked or find a fuel pressure guage to check it if your car is under warranty i would take it to the dealer ship

Your Answer:

Own this car?

Share your experience with others.

CarGurus Experts

  • #1
    marydudley47
    Reputation
    840
  • #2
    Michael Kane
    Reputation
    790
  • #3
    Luis Villa
    Reputation
    650
View All

Know more, shop wisely

Search

Related Models For Sale

Used Mercedes-Benz E-Class
719 Great Deals out of 11,235 listings starting at $1,450
Used BMW 7 Series
185 Great Deals out of 3,533 listings starting at $3,899
Used Mercedes-Benz AMG GT
69 Great Deals out of 1,831 listings starting at $45,590
Used Mercedes-Benz C-Class
934 Great Deals out of 20,816 listings starting at $1,500
Used Mercedes-Benz GLE
771 Great Deals out of 21,642 listings starting at $10,992
Used Mercedes-Benz G-Class
121 Great Deals out of 2,832 listings starting at $24,991
Used Mercedes-Benz GLS
250 Great Deals out of 8,480 listings starting at $10,499
Used Mercedes-Benz CLS
80 Great Deals out of 1,002 listings starting at $4,500
Used Mercedes-Benz SL-Class
133 Great Deals out of 2,336 listings starting at $4,995
Used Land Rover Range Rover
354 Great Deals out of 7,343 listings starting at $4,495
Used Mercedes-Benz S-Class Coupe
23 listings starting at $33,995
Used Lexus LS
121 Great Deals out of 1,541 listings starting at $2,300
Used Porsche 911
345 Great Deals out of 4,273 listings starting at $12,995
Used Chevrolet Corvette
773 Great Deals out of 13,955 listings starting at $4,995
Used Porsche Panamera
111 Great Deals out of 1,431 listings starting at $7,795

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.