How can I tell if my transmission converter is bad?
Check the transmission cross member mount (rubber dampers) for excessive wear or splits. A noticeable vibration in the chassis frame during the heavy clunk will point more toward a defective transmission mount rather than a torque converter problem. Drive the vehicle through its normal transmission shifting range from first to overdrive.
How can I tell if my torque converter has broken?
Put the shift selector in drive, while maintaining pressure on the brake. If you hear a loud clunk, or feel a chassis shudder, this could indicate that the torque converter mounts have disconnected or broken. Confirm this by checking the tightness of the universal joints, both front and rear of a rear-drive vehicle.
Why does my torque converter make a noise when I drive?
Since the torque converter pump, stator and turbine spin freely without engagement during neutral or park, the noise will not be present in those settings. Accelerate slowly in drive and listen to whether the torque converter noise will get quieter as the vehicle moves forward. Place your foot on the brake with the engine in neutral and idling.
Why is my transmission making a clunking noise?
Check the transmission cross member mount (rubber dampers) for excessive wear or splits. A noticeable vibration in the chassis frame during the heavy clunk will point more toward a defective transmission mount rather than a torque converter problem.
When did Chevy add a torque converter to the transmission?
Beginning in 2007, the 4L70E transmissions upgraded the input shaft with an integrated input shaft speed sensor. If the converter and input shaft are not compatible, there will be fitment issues that will prevent you from using the torque converter in the transmission.
When did Chevy trans case change to bolt on?
When the LS engines appeared in 1997, the trans case changed to a bolt-on bellhousing to accommodate the LS engine’s revised bolt pattern. This also included a change in the torque converter diameter and flexplate attachment pattern.
Why are the seats in Trans Am World less than they should be?
Seats (AQ9) Totals shown in BOLD BLUE are less than totals found from other data sources (which are shown in blue italics ). This could be the result of errors in the other data source, or units missing from CompNine’s database.
Which is the best Chevy for trans interchange?
The current favorite son seems to be the 700-R4/4L60E four-speed automatic, but there are also places where a TH400 might be the best solution for a 1,500-hp, blown LS engine, or a simple 200-R4 fits best behind a 5.3L LS daily driver. As with all interchange stories, a successful swap is dictated by handling all the fine points.