P0741 PONTIAC Torque Converter Clutch Circuit Performance or Stuck Off

Possible causes – Low transmission fluid level– Dirty transmission fluid– Faulty torque converter clutch solenoid valve– Torque converter clutch solenoid valve harness or connectors– Torque converter clutch solenoid valve circuit is open or shorted– Transmission internal mechanical problem When is the obd code mean? Lock-up does not occur when driving in lock-up range or lockup…

P0218 PONTIAC Transmission Over Temperature Condition

Possible causes – Low transmission fluid level– Transmission cooling system concerns When is the obd code mean? When the Powertrain Control Module (PCM) detects a high transmission fluid temperature (TFT) for a long period of time, then code P0218 will set. Symptoms – Engine Light ON (or Service Engine Soon Warning Light) P0218 PONTIAC OBD…

P0016 PONTIAC Crankshaft Position vs. Intake Camshaft Position Correlation Bank 1 Fault

Possible causes – Mechanical timing fault– Blocked oil passage– Low oil level– Failed actuator assembly– Faulty camshaft position sensor– Faulty crankshaft position sensor Tech description If this DTC started after recent internal engine repairs, inspect for proper engine mechanical timing. With the camshaft cover removed and the #1 cylinder at top dead center, make sure…

P0442 PONTIAC Evaporative Emission Control System Leak Detected Small Leak

Possible causes – Missing or loose fuel cap– Incorrect fuel filler cap used– Fuel filler cap remains open or fails to close– Foreign matter caught in fuel filler cap– EVAP canister or fuel tank leaks– EVAP system hose leaking– Fuel tank leaking Tech description The P0442 code means that the control module has detected a…

P0440 PONTIAC Evaporative Emission System

Possible causes – Missing or loose fuel cap– Incorrect fuel filler cap used– Fuel filler cap remains open or fails to close– Foreign matter caught in fuel filler cap– EVAP canister or fuel tank leaks– EVAP system hose leaking– Fuel tank leaking– Faulty vent solenoid– Faulty EVAP purge switch Tech description The P0440 code means…

P0446 PONTIAC Evaporative Emission Vent System Performance

Possible causes – Plugged vapor canister– Faulty vent solenoid– Pinched or blocked EVAP hose– Faulty FTP sensor Tech description Dirt and dust intrusion into the EVAP canister vent hose assembly, resulting in restricted air flow, may cause this condition. When is the obd code mean? The Powertrain Control Module (PCM) sets the P0446 code if…

P0752 PONTIAC 1-2 Shift Solenoid Valve Performance – No Second or Third Gear

Possible causes – Low transmission fluid level– Dirty transmission fluid– Faulty 1-2 Shift Solenoid valve– 1-2 Shift Solenoid valve harness or connectors– 1-2 Shift Solenoid valve circuit is open or shorted Tech description When the a transmission solenoid is stuck on, in most cases the problem is not the electrical part of the solenoid; the…

P0753 PONTIAC 1-2 Shift Solenoid Circuit Electrical

Possible causes – Low transmission fluid level– Dirty transmission fluid– Faulty 1-2 Shift Solenoid valve– 1-2 Shift Solenoid valve harness or connectors– 1-2 Shift Solenoid valve circuit is open or shorted When is the obd code mean? When the Powertrain Control Module (PCM) detects a continuous open, short to ground or short to power in…