9T65 Traverse Converter
Consolidated Vehicle Converters has introduced a 9T65 converter for use with the ’18-’19 3.6L Chevy Traverse with the RS package (#BU74).
Don’t Assume; Be Systematic with Diagnosis
Like many of you, this time of year I am usually asked to assemble a variety of items and gifts for my family members. In light of these requests, I have spent a significant amount of time analyzing why we waste so much time assembling, disassembling and re-assembling items out of an unwillingness to simply read the instructions. Often this process results in leftover spare parts and frustration.
Surprise! Get the Right Tool for This Job
With the challenges we face with today’s cars, unexpected surprises are not usually welcomed to the party. It’s a Friday night and you’re staying late to rebuild a 4L60-E from a 2010 4.8L Silverado that must go Saturday morning. So you go to have a bite to eat first. When you return, the shop is nice and quiet. You are alone and thinking to yourself, I could bang this out in a few hours and still be home in enough time to watch a show.
Verifying Repairs: This is Where We Dropped the Ball
For this installment of R&R Tech I would like to take some time to discuss how engine performance can affect the transmission operation. We have all heard it before; the engine must be running properly in order for the transmission to function correctly. What does “properly” mean in this scenario? We all use different terms when we tell the customer, “You need to get the engine running properly” or good, correct, better, whatever terms we use; in our minds it all means the same thing.
Accelerating in 4X4 Comes with a Bang
A while back I had a truck that came into our shop for a noise concern. The customer stated that he heard a loud clunk or repeated popping noise when he would accelerate with the truck in automatic 4×4 mode, as well as in 4×4 high and 4×4 low. He also stated that he didn’t notice the noise under light acceleration in these modes, and that the noise was not present when he was in 2WD under any type of acceleration. The truck was a 2009 K1500 Silverado with a little over 83,000 miles on it. Upon reading the description, it sure seemed like I had a transfer case problem to look into.
Fast Fix on Chevy Snowplow
This particular truck is a 1996 Chevy 2500 series four-wheel-drive converted from a diesel to a 350 5.7-liter fuel-injected Vortex with an aftermarket powertrain wiring harness and a 4L60-E electronically shifted transmission. The guy bought it for his landscaping business strictly to plow snow. It had a bad transmission, which he had one of the local transmission shops overhaul. It came to me with the transmission banging hard when you dropped it into gear. It also had a rough 1-2 shift and didn’t shift at all from second to third.
Serviceability Report: Chevrolet Impala
Tech to Tech Author: Craig Van Batenburg Subject Matter: Serviceability Vehicle Application: 2014 Chevy Impala Issue: Service comparison After GM went through a public bankruptcy, did its cars get better to service? This month, we focus on the Chevy Impala for the second time. Back in 2005 I compared the 3.8 four-door sedan with a
Inside the Tremec TR6070 7-Speed Manual Transmission
Last month we looked at the new C7 generation of Chevrolet Corvette, which brings the famous “Stingray” name back into use. GM has invested tremendous amounts of labor and capital to create a real world-class new model, which will be the first to use the new Tremec TR6070 seven-speed manual transmission. The new Stingray’s advanced computer controls will enable the driver to tune the vehicle to a number of driving modes, and Tremec did a really first-class design to provide seven speeds in a package that is only slightly different in size from the previous TR6060.
Magna Powertrain Transfer Case, RPO Code NQF
We finally had a big-enough snow this year to bring out the people with 4WD problems. This one was a 2008 Chevy Silverado 2500 HD.
It was from a tire distributor that has a number of these particular trucks. Their technicians had been trying to fix the issue of having no 4WD by putting various parts on it. They said that they had replaced the transfer-case motor and buttons.
I started out with the usual road test, scan and lift check to verify the problem. Sure enough, there was no 4WD and the transfer-case control module (TCCM) had every code possible stored. I thought I’d clear the codes and start out fresh.
The New 7-Speed Tremec TR6070 Manual Transmission
This is truly a world-class vehicle. It features new technology, design and manufacturing methods that go way beyond the familiar C5 and C6 Corvettes. These cars have come a long way from the older fiberglass models, using an aluminum space frame and many carbon-fiber body parts. GM has invested a fortune in development and design in a totally new LT1 aluminum-block engine (Figure 3) that produces 450 horsepower and 450 lb.-ft. of torque from the 6.2-liter displacement. Zero-to-60-mph times are in the four-second range, and this is from the stock motor. Higher-performance versions of the new LT1 will be released for the top-of-the-line Corvette models. The most-striking feature of these vehicles is a seven-speed manual transmission, the TR6070 (figures 4 and 5).
Whodunit?
Every technician who rebuilds transmissions has failures, which we call comebacks. We get the failed or improperly working unit back, diagnose the cause and make it right.
The entire exercise we go through on a daily basis making repairs is based on the same set of facts: We have to first diagnose the problem, understand the cause of the failure, correct that cause and then certify that the unit is working correctly and deliver the product.
