1998 Chevy Impala seems to hesitate or surge

Tiny
2CARPROS-ARCHIVES
  • MEMBER
  • 1998 CHEVROLET IMPALA
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 70,000 MILES
1998 Chevy Impala mileage: 70,000. Lately while driving my Impala it seems to hesitate or surge, it's hard to tell. It started happening first at speeds around 40-45 mph. Now when it happens, it is doing it at 60 mph and also when I then start to drive slower. If I accelerate, it stops but then can start again. It doesn't happen every day and only seems to happen when I've been driving a while. It feels as if something is not flowing through properly. I had a transmission flush done at 60000 miles; they did not replace the filter. At 63000 miles, the fuel pump had to be replaced. The fuel filter and screen were also replaced at this time. I've never had a tune up. I'm not sure what it causing the problem. Should I worry about it stalling on me?
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Friday, January 7th, 2011 AT 6:39 PM

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Tiny
2CARPROS-ARCHIVES
  • MEMBER
Your car may be ready for a major tune-up including spark plugs, plug wires, distributor cap, rotor, fuel filter and air filter. Also, perform a fuel pump pressure test. Clean fuel injection system including throttle bore, idle speed control motor and passages. Also, replace the oxygen sensor. If problem still exists, scan computer for trouble codes.
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Friday, January 7th, 2011 AT 6:40 PM

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