September 2018 Issue
In This Issue
MRMA 5-speed Acura RSX: Neutralizing into fourth gear
722.9 new design valve body: 7 G-Tronic plus generation six
Extreme Stator Repair
When you are rebuilding a late model converter it is very important to have the correct stator, impeller and turbine. The computers in today’s vehicles are sophisticated enough to pick up small changes in the stall or stall torque ratio in a converter. If a change is detected by the computer it will set a code.
An ECU Dilemma
A 2009 Toyota Corolla LE with a 1.8L engine and a U341E transmission arrives to a shop with code P2757 Torque Converter Clutch Pressure Control Solenoid Performance (SLU Solenoid) Malfunction stored. The unit was removed and overhauled with a new SLU solenoid and a replacement torque converter. When it was tested, the car seemed to be working well but the Malfunction Indicator Lamp came on after reaching highway speed.
A Racing Specialty
Steve Farnsworth, founder and president of Omaha, Neb., based Midwest Transmission Supply (MTS), says that transmissions and the aftermarket is something he’s been around all his life. “My babysitters were truck mechanics,” he says. The family lived upstairs and owned a truck repair shop downstairs.
Valve body – GM Gen. 2 6T70, 6T75, 6T80 – Vacuum testing
Critical Wear Areas & Vacuum Test Locations
NOTE: OE valves are shown in rest position and should be tested in rest position unless otherwise
indicated. Test locations are pointed to with an arrow. Springs are not shown for visual clarity.
A low vacuum reading indicates wear. For specific vacuum test parameters,
refer to additional information available at www.sonnax.com.
No Shim and a Short
Lorenzo Ortiz from Phillips Transmission had a 2005 Acura TSX with the MCTA five-speed transmission come into his shop for repairs. After it was repaired and installed into the vehicle, it had a new problem. The car would not start. The immobilizer lamp was flashing and the scan tool could not communicate with the engine control module, yet all other modules would communicate.
A Misfiring Mustang
Our customer arrived at our door with a beautiful, black Mustang shaking and rattling at idle and running poorly on acceleration. My test drive revealed that the car ran smooth with no codes and no noises until it warmed. I also heard and felt a probable throw-out bearing issue, as the sound changed with clutch pedal pressure.
Disruption comes in many ways, often
Most of us accept that we have to adapt to whatever is thrown at us and we make changes accordingly and often rather quickly. There are some, however, who will stick staunchly to the way they’ve been doing things for many years whether it’s right or wrong and no matter how costly it may become.
A Clever Variable Cylinder Management Fix
As quiet as the drive may be, this technology has turned into big headache for both the manufacturer and the vehicle owner. This system is known to have the potential for misfires, high oil consumption fouling the plugs, repeated failure of the motor mounts and damage to the torque converter. In fact, the 2015 ATSG seminar covered a scenario where VCM activation can be misinterpreted as a torque converter shutter.
A Sudden No Move
It’s always unsettling when a transmission comes back after the customer has had it for only an hour; especially when it came back on a hook. Such was the case at a local transmission shop with a 42RE transmission.
WIT: Changing with the Industry
As one of the powertrain aftermarket segment’s two nationwide specialty parts distributors Whatever It Takes (WIT) says their growth continues at a rapid, yet still controlled, rate. Opening distribution most recently in Austin and Salt Lake City, the employee-owned company’s founder, Kenny Hester, says that WIT’s growth continues, as does an evolution as it provides product lines reflecting the changing needs of its shop customers.
August 2018 Issue
In This Issue
Chrysler solenoid electrical codes: The inductive spike
Ford 5R110W: Slips forward after initial engagement
Jeep Grand Cherokee: P03520 ignition fault
GM global diagnostic system: Module swapping
