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2003 GMC Other Repair Question


Topics covered: Fuel pump, Engine, Check engine light.
Mileage: No information provided.

Asked on November 18, 2009

2003 Other GMC Models

Engine Performance problem
2003 Other GMC Models 4 cyl Two Wheel Drive Manual 175000 miles

AT ANY SPEED IT FEELS LIKE YOU ARE STARTING OFF IN HIGH GEAR, GIVE IT THE GAS IT STARTS JERKING,CHANGED PLUGS AND WIRES, IS IT POSSIBLE THAT IT COULD BE BAD CONNECTIONS AT THE FUELPUMP HARNESS OR A VACUME LEAK,SOME SAY THAT THE HARNESS CONNECTIONS AT THE FUELPUMP GO BAD EXPECIALY THE GROUND.
Avatar Asked by 1956rust

Answer

Replied on November 19, 2009

Any of those things are possible. The grounds for the fuel pump are an issue, as well as the fuel pump connector.
Is the check engine light on? Was the fuel pump changed recently / or / ever? A vacuum leak is obvious.

Tiny Answered by pear69
7 questions asked