1999 GMC Sonoma Not shifting

1999 GMC SONOMA

150,000 MILES • 4 CYL • 2WD • AUTOMATIC

MRPASO1963

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I changed the trans. oil and the 2 lines that go from the trans. to the radiator, also changed the radiator, now it doesn't change gears when I drive it. What can it be?

Oct 6, 2010 at 1:05 PM

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