2003 Other GMC Models

Tiny
1956RUST
  • 2003 GMC

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.

Do you
have the same problem?
Yes
No
Wednesday, November 18th, 2009 AT 7:31 PM

1 Reply

Tiny
PEAR69
  • MEMBER

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.

Was this
answer
helpful?
Yes
No
Thursday, November 19th, 2009 AT 1:44 AM

Please login or register to post a reply.

Other Transmission Gear Overdrive Questions