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1. On startup vehicle shakes and vibrate 2. High pitched screeching. 3. Engine shuts off when in reverse 4. Shaking/vibrating in idle 5. Poor acceleration OBD2 Codes [Before I replaced spark plugs and ignition wires] - July 19 - P0420 P0455 P0456 - Aug 17 - P0420 P0455 - Sept 12 - P0300 P0304 P02303 P0456 [Codes after I replaced spark plugs and ignition wires] - Sept 13 - P0300 P02302
What makes this problem better or worse?
Worse on startup and when in idle
How long has your 2007 Dodge Caravan had this problem?
A few months ago and no presents major driveability issues
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