Question about Chevrolet Cars & Trucks
It could be a major problem. Its not a maintenance thing.
Code 741 is for a problem with the torque converter switch or solenoid. The computer "locks up" the torque converter at speeds above 35 or 40 to increase fuel mileage.
The circuit would need to be tested.
Posted on Jul 12, 2013
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Posted on Jan 02, 2017
SOURCE: check eng light is on
Most common problem for 0449, and 0455 on this truck is dust in evap vent valve causing valve to stick open and resulting in 0455
need to replace evap vent valve and clean dust from vent hoses
Posted on Aug 09, 2008
This fix comes from the service manager of a Toyota dealer, he is a online expert named Toyota Ed.
Toyota is aware of this situation. Production changes have ocurred to correct this condition.
Here is what you do: Take your vehicle to your Toyota dealer. Tell them that you have a P-0741 code, and you want them to apply "Toyota Technical Service bulletin TC008-04" to your vehicle. They will perform several tests, and if you vehicle is lower than 5 years old, and less than 60, 000 miles, they will fix it for free. This TSB is covered by the Powertrain Warranty. Additionally, Thay may replace the ECU with an updated unit, and that particular warranty is in effect for 96 months or 80,000 miles.
This will definatly cure your issue
Posted on Jan 05, 2009
P1361: top dead center sensor circuit. The crank positioning sensor and cam positioning sensor are the two components that you want to look at. One of the two parts are cracked and the water is causing a short. Once it dries out, it should go back to normal but you do need to replace the faulty sensor/s.
Posted on Jun 06, 2009
firstly it could be that the check engine light is mal-functioning or not. why not drive it as they said and if after that its still on get back to us.
Posted on Mar 16, 2010
Testimonial: "This is very helpful information. I just would like to know, once the cycles completes will the check engine go out on its own or not?"
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P0741....Torque Converter Clutch Circuit Performance or Stuck Off
P0507....Idle Control System RPM Higher Than Expected
that this dealer doesnt have the correct diagnostic software because their code is a generic code as well as the first one ,A GM dealer code would have been P1507 and this code doesnt exist in the GM list of codes ,i think they are both right and need attention but the gearbox code is a fault with the front clutch operating mechanism ,i would advise ripping teh autobox out and fitting a manual gearbox ,lot less hassle
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