Why does Dodge diesel have a TCC lockup problem?
One very popular fix was to install a noise filter on the TPS signal wire back to the PCM, as the cause of the TCC cycling problem was a noisy or erratic TPS signal. This is generally common knowledge, and most have seen graphs and screenshots of the erratic TPS signal. What has always bothered me is, why?
When does the TCC disengage in a manual transmission?
The TCC is very similar to the clutch in a manual transmission. When engaged, it makes a direct physical connection between the engine and transmission. Generally, the TCC will engage at about 50 mph and disengage at about 45 mph. The TCC solenoid is what actually causes the TCC to engage and disengage.
What causes a GM torque converter to lock up?
Most of the time it is a stuck Torque Converter Clutch (TCC) solenoid, but this is not the only cause of this problem. General Motors has issued a few Technical Service Bulletins (TSBs) relating to this problem. There is also a specific diagnostic procedure to determine the exact cause of the TCC problem.
Why is my Trans bad on my 4L60E?
Trans seems noisy when moving in 1st and Reverse, noise goes away instantly if you shift to N or the transmission goes into 3rd gear: Reaction planetary is worn out due to high miles or insufficient lubrication. Not a critical failure, but not a good sign either.
One very popular fix was to install a noise filter on the TPS signal wire back to the PCM, as the cause of the TCC cycling problem was a noisy or erratic TPS signal. This is generally common knowledge, and most have seen graphs and screenshots of the erratic TPS signal. What has always bothered me is, why?
The TCC is very similar to the clutch in a manual transmission. When engaged, it makes a direct physical connection between the engine and transmission. Generally, the TCC will engage at about 50 mph and disengage at about 45 mph. The TCC solenoid is what actually causes the TCC to engage and disengage.
Where is the lockup clutch in a transmission converter?
To prevent slipping at certain speeds (normally speeds exceeding 37 mph) a lockup clutch located inside the converter locks the engine’s output drive to the transmission’s input shaft to achieve a 1:1 ratio – meaning 100% of the engine’s power is now reaching the transmission.
Most of the time it is a stuck Torque Converter Clutch (TCC) solenoid, but this is not the only cause of this problem. General Motors has issued a few Technical Service Bulletins (TSBs) relating to this problem. There is also a specific diagnostic procedure to determine the exact cause of the TCC problem.
Why is my Dodge truck not locking up?
Seeing this, I unbolted the alternator V+ wire, and took the truck out for a drive. It didn’t act up at all. It appeared that the excessive electrical noise from the alternator was causing the issue, so we sold and installed a new alternator, drove it some more, and still had no problems. It was working great.
Why is my Dodge Ram not shifting gears?
If the check engine light came on, your engine’s ECU computer is registering 1 or more error codes. If you have an OBD-II scanner you can read them yourself, otherwise you’ll have to take the truck to the dealership to clear them even if you fix the mechanical failure on your own.