I have a 99 Chevy Monte Carlo and I just replaced the fuel pump the other day. Since I got the car restarted it runs good but when I mash the gas down to really get up speed it hesitates & sputters.

Asked by May 14, 2015 at 11:58 AM about the 1999 Chevrolet Monte Carlo 2 Dr Z34 Coupe

Question type: Maintenance & Repair

What could be causing this?

1 Answer

101,875

Did you replace the fuel filter also? If you did then you may have a fuel pressure regulator going bad or the fuel pump is not making enough pressure even though it is new. Test the fuel pressure and flow rate. You may want to reset the ECM after everything is done.

Your Answer

Chevrolet Monte Carlo Experts

  • #1
    Tom Demyan
    Reputation
    520
  • #2
    Js08016
    Reputation
    500
  • #3
    John Saffrahn
    Reputation
    440
View All

Related Models For Sale

Used Chevrolet Impala
550 Great Deals out of 35,022 listings starting at $900
Used Chevrolet Camaro
426 Great Deals out of 30,565 listings starting at $2,495
Used Ford Mustang
617 Great Deals out of 36,130 listings starting at $1,800
Used Pontiac Grand Prix
24 Great Deals out of 2,699 listings starting at $1,500
Used Chevrolet Malibu
976 Great Deals out of 66,469 listings starting at $1,000
Used Chevrolet Corvette
196 Great Deals out of 19,863 listings starting at $2,490
Used Buick Regal
164 Great Deals out of 8,902 listings starting at $4,800
Used Chevrolet Silverado 1500
2,266 Great Deals out of 168,160 listings starting at $1,000
Used Chevrolet Tahoe
732 Great Deals out of 41,252 listings starting at $1,995
Used Pontiac Firebird
12 Great Deals out of 884 listings starting at $2,500

Used Cars For Sale

2007 Chevrolet Monte Carlo For Sale
115 listings starting at $5,988
2006 Chevrolet Monte Carlo For Sale
3 Great Deals out of 190 listings starting at $2,500
2005 Chevrolet Monte Carlo For Sale
116 listings starting at $1,488

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.