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Chevrolet Blazer P0743 Engine Error Code

When you check Chevrolet Blazer car engine light came on code P0743 the reason should be Engine Light ON (or Service Engine Soon Warning Light). However Chevrolet manufacturer may have a different definition for the P0743 OBD-II Diagnostic Powertrain (P) Trouble Code. So you should chech it on our car models.

P0743 Chevrolet Blazer Code Clear

P0743 Chevrolet Blazer engine problem can be occur defective fan clutches are a common and often overlooked cause of engine overheating. The shear characteristics of the clutch fluid gradually deteriorates over time, with an average loss in drive efficiency of about 200 rpm per year. Eventually slippage reaches the point where effective cooling is no longer possible and overheating results. (On average, the life of a fan clutch is about the same as a water pump. If one needs to be replaced, the other usually does too.)

P0743 Code Reason

Chevrolet Blazer P0743 OBD-II Diagnostic Powertrain (P) Trouble Code Description

Chevrolet Blazer car P0743 OBD-II Trouble Code The Torque Converter Clutch (TCC) solenoid valve is activated, with the gear in D4, by the Transmission Control Module (TCM) in response to signals sent from the vehicle speed and the Engine Control M

Reason For Chevrolet Blazer P0743 Code

The reason of Chevrolet Blazer P0743 OBD-II Engine Error Code is P0743 Torque Converter Clutch Circuit Electrical.

While fuel economy was increased, acceleration was seriously compromised, and the loss of engine vacuum led to a dangerous loss of braking assist when the P0743 Chevrolet Blazer code system was in four-cylinder mode. In addition to these issues, while the company proposed a hydraulically controlled system that could be switched from within the car, the version they implemented had to be manually changed in the engine compartment using hand tools.

Chevrolet Blazer P0743 Possible Solution :

Disconnected, dirty or fouled spark plugs are common causes for engines that won't start. Spark plugs typically need to be replaced every season or 25 hours of use. You should also check that the spark plug gap is set properly. If your spark plugs look good, problems with your ignition system can also preventing a spark. These can range from a faulty spark plug lead, shorted kill switch or flywheel key damage.

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