How can I tell if my GM converter is working?
How can I tell if my GM converter is working?
If the upper switch with the vacuum hose is used, check the two wires at that switch. On the four wire lower switch, check the two wires farthest from the plunger. Check for 12 volts at both sides of the brake switch. Some GM vehicles have two electric switches on the brake pedal.
What should I do if my GM converter lock up?
NEVER run the vehicle in gear when supported only with a jack. Chock the drive wheels and apply the parking brake. In addition, some of the tests (test #11 and 12) require the transmission be opened and the valves are physically inspected. I do not recommend that you do this.
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Why do I need to lock up the torque converter?
The TCC System uses a solenoid-operated valve to couple the engine flywheel to the output shaft of the transmission through the torque converter. Lockup reduces slippage in the converter increasing fuel economy. For the converter clutch to apply, two conditions must be met: Internal transmission fluid pressure must be correct.
If the upper switch with the vacuum hose is used, check the two wires at that switch. On the four wire lower switch, check the two wires farthest from the plunger. Check for 12 volts at both sides of the brake switch. Some GM vehicles have two electric switches on the brake pedal.
NEVER run the vehicle in gear when supported only with a jack. Chock the drive wheels and apply the parking brake. In addition, some of the tests (test #11 and 12) require the transmission be opened and the valves are physically inspected. I do not recommend that you do this.
How to read a GM check engine light code?
It will look like Morse Code, but it isn’t, and is real easy to interpret. The first code that will flash will be a code 12. It will be “flash, pause, flash, flash, pause, pause,” and repeat the cycle three times. The ECMwill flash each code three times, and move on to the next. If you have no codes stored, it will keep flashing code 12.
Is there a problem with my GM venture?
It is a common problem for 1997 to 2002 GM products that have the 3.4L engine. It affects Chevrolet Venture and Pontiac Montana vans also. In the winter, the van would take forever to heat up and when it did there was little heat coming out of the heater. When it gets to -20 below, the heater would put out luke warm air.
What is the OBD2 code for a Chevy?
OBDII Chevrolet Code Definitions. Be sure to double check the codes. Anything P1000 to P1999 or P3000 to P3400 will be Manufacturer specific and may not match the ones listed here. Check specific manufacturer pages on the site, as some of them, we list the OBD2 codes on those pages for those specific vehicles.
What kind of engine does GM venture have?
It is a common problem for 1997 to 2002 GM products that have the 3.4L engine. It affects Chevrolet Venture and Pontiac Montana vans also. In the winter, the van would take forever to heat up and when it did there was little heat coming out of the heater.
