Could be fuel pump is close to death.leadfoot said:During acceleration when it gets to 2200rpm it lurches and wont accelerate. The tach bounces between 2000-2400rpm until i press the gas enough to downshift where now at 3000rpm it accelerates cleanly. Once I hit 4th gear(65/70mph~2100/2400rpm)missing returns and continues unless i go faster or slower(above or below 2200rpm). It lurches like its out of gas but gets really bad when i use the lights or elec. defrost. .