Sonnax Vacuum-Test Layout - 45RFE - Transmission Digest

Sonnax Vacuum-Test Layout – 45RFE

Sonnax Vacuum-Test Layout - 45RFE

Sherlock Holmes Approach to an AB60 No-Move Situation

The effectiveness in diagnosing automatic transmission malfunctions is an art form. Although there are similarities among the wide varieties of transmissions on the road, each transmission has its own peculiarities. Aside from having mechanical, hydraulic, and electrical hardware systems to contend with, software/programming issues and various vehicle platforms make diagnostics much more difficult.  Using scopes provides

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The effectiveness in diagnosing automatic transmission malfunctions is an art form. Although there are similarities among the wide varieties of transmissions on the road, each transmission has its own peculiarities. Aside from having mechanical, hydraulic, and electrical hardware systems to contend with, software/programming issues and various vehicle platforms make diagnostics much more difficult. 

GM 6T40 Pump Identification Guide

The 6T40 was introduced in 2008 for General Motors front-wheel-drive cars in the Chevrolet Malibu and has gone through several changes throughout its three generations, specifically in the pump area. The 6T40 is closely related to the more lightweight 6T30 and the heavier duty 6T45 and 6T50. Generation one started phasing out during the 2012

Seeing the Forest AND the Trees

They say that the proverbial phrase “I couldn’t see the forest for the trees” means that a person or organization cannot see the big picture because it focuses too much on the details. Related Articles – 4L60E Harsh 1-2 Shift – TASC Force Tips: Diagnosing 8L45 & 8L90 Shift Complaints – TASC Force Tips: Hydraulics

The Manifold Pipeway

The Honda six-speed transmission has been on the bench of many specialty shops for one reason or another (figure 1). But, for those of you who have yet to lay your hands on one, mounted on the upper side of the unit is one of the largest, if not the largest solenoid and pressure switch

8L90 Vacuum Testing

Below are the diagrams for vacuum testing GM 8L90 transmissions. 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 information, refer

Other Posts

Sonnax introduces oversized cooler/lube flow control valve kit

Sonnax highlights its oversized cooler/lube flow control valve kit for Toyota UA/AB transmissions. Sonnax says users can recover hydraulic control and restore cooler/lube performance in Toyota/Lexus UA80E, UA80F, UB80E, UB80F transmissions by reconditioning the bore and installing this kit (part no. 168740-08K). Related Articles – Toledo Trans-Kit 10L transmissions now available – Alto introduces new

The torque converter can of worms: Lockup and aftermarket programming

Lockup torque converters have been around now for some time. They came into production around the time when fuel mileage demands were put into effect by the government, and the auto manufacturers needed to do something to better connect the fluid coupling (torque converter) of the automatic transmission to the motor. By doing this, OEMs

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Sonnax introduces drop-in 4-5-6 sleeved accumulator piston kit for GM 6T series

Sonnax has introduced a drop-in 4-5-6 sleeved accumulator piston kit (part no. 124740-68K). The company says users can recover hydraulic control and renew shift feel and performance in GM 6T70, 6T75, 6T80 (Gen. 2) transmissions by installing this kit. Related Articles – TransGo releases Allison valve body kit – Schaeffler releases TorCon 6L80 torque converter

Sonnax introduces TCC apply limit switch valve kits for Chrysler RFE series

Sonnax has introduced a drop-in TCC apply limit switch valve kit for the Chrysler RFE series. Related Articles – PRT launches 59 new complete strut assemblies – Raybestos adds new Toyota UA80 / UB80 converter clutch plates – BendPak announces upgraded Litestix work light The company says you can limit the amount of pressure applied to