Critical wear areas and vacuum test locations: GM 10L and Ford 10R series
Sonnax has provided the following guide on critical wear areas and vacuum test locations for the GM 10L series and the Ford 10R series. Technicans working on these models should find the following four pages helpful. Read more columns from the TASC Force Tips series here.
Sonnax highlights 10L/10R solenoid stabilization retainer, 9T clip insert
Sonnax highlights two product lines for helping with heavy solenoids for GM/Ford 10L/10R and 9T series transmissions. According to Sonnax, the heavy OE LFS solenoids that are common to these transmissions are known to result in collapse of the OE retainer clip. Sonnax 10L/10R solenoid stabilization retainer with thicker and longer clip with positive stop
Sonnax introduces new pump vane for Ford and GM transmissions
Sonnax highlights its line of pump vanes for GM 6T70/75 (Gen. 1), 10L60/80/90 (Gen. 1 and 2), Ford 6F50/55 and 10R60/80/90 transmissions. Sonnax touts this pump vane (part no. 124533) as a cost-effective alternative to replacing an entire pump rotor assembly.
Sonnax introduces input housing forward sleeve kit for GM 4L series
Sonnax has introduced a new input housing forward sleeve kit (part no. 77733-52K), which the company says can increase input housing torque capacity and maintain OE forward piston apply area in GM 4L60, 4L60-E, 4L65-E and 4L70-E transmissions. Sonnax suggests using it combination with a Sonnax overrun sleeve to greatly increase the maximum strength of
Diagnosing Chrysler transmission max line pressure and P0933, P0869, P1745 codes
This article applies to Chrysler RFE, RLE and TES transmissions that utilize pressure control solenoids (PCS) for line pressure control. The subject is a rather common electrical fault that may occur on the PCS line pressure solenoid circuit, which results in max line pressure. Diagnosis and correction of a max line pressure condition may become
Sonnax highlights boost valve kits for Aisin Seiki transmissions
The drop-in K1 apply boost valve kit and lockup boost valve kit are available from Sonnax.
Sonnax releases Smart-Tech drum module for TH400 racing applications
At the recent PRI show in Indianapolis, Sonnax announced the release of its Smart-Tech drum module for racing GM TH400 transmissions. According to Sonnax, this drum module is designed to correct a specific flaw of the TH400: the fact that the direct drum counter rotates, spinning backwards in first gear, brakes to a complete stop
How to fix GM 8L45/8L90 no-move and no-pressure conditions
By now you may have heard of, or even experienced, a GM 8L45 or 8L90 transmission with a no-move or no-pressure condition. Conditions of no movement or no pressure after repair have plagued this unit since its inception. Here’s what you can do about them. Condition 1: No movement after fast learn or programming If
Sonnax introduces PR boost valve and o-ringed end plug kits for GM 9T series
Sonnax has introduced drop-in PR boost valve and o-ringed end plug kits for GM 9T45/50/60/65 transmissions. Pressure regulator boost valve kit #184740-02K restores line pressure performance and renews converter feed. Additionally, o-ringed end plug kit #184740-03K, which fits both ETRS and non-ETRS valve bodies, deals with leaks, restores hydraulic integrity and renews shift operations, the
Sonnax introduces Smart-Tech drum module for racing applications
Sonnax has introduced the Smart-Tech drum module (part no. 34555-01K) for the GM TH400. Designed for racing applications, this kit increases wheel HP, improves acceleration and reduces shock on shifts while ramping up durability and safety, the company says. According to Sonnax, the module includes parts to upgrade forward and direct drums plus everything else
Sonnax highlights oversized low overrun valve kit
Sonnax highlights its oversized low overrun valve kit #77754-62K, which the company says can restore hydraulic integrity of the low/reverse clutch circuit and salvage worn valve bodies in GM 4L60-E, 4L65-E and 4L70-E transmissions if installed after reconditioning the bore. This kit requires Sonnax tool kit F-77754-TL62 for installation.
Sonnax highlights main pressure regulator valve kit
Sonnax highlights its main pressure regulator valve kit #105740-12K, which the company says can eliminate low line pressure, delayed engagement, poor shift quality, burnt clutches and various shift concerns in GM 10L80 (Gen. 1) and Ford 10R80/10R140 transmissions. Sonnax says this kit includes advanced design features like an extended outboard spool that is 270% longer
