Most new transmissions have
automatic safeguards on their valve bodies to prevent you from destroying the
transmission by accident. They will upshift and downshift even when you manually
select a specific gear as the engine speed nears the red line or the stalling
level. This means that you can get maximum engine performance by selecting
first gear.
Experts don’t recommend this as
an everyday practice and are not responsible for any damage that occurs if you
try it. There are ways on how you can detect whether the valve bodies are
already faulty and may need repairs or replacements.
1.
Worn fluid causes the lubrication to lose its
viscosity, which decreases the level of protection the transmission fluid
passes through the valve bodies. You can easily prevent this by checking and
changing your transmission fluid on the appropriate schedule. This is generally
done every 15,000 to 30,000 miles, unless needed sooner based on the use of
your vehicle. If you do a lot of heavy hauling, you work your standard or
automatic transmission harder and will need to change the fluids more
frequently.
2.
The transmission valve bodies controls the point
at which gears are shifted. The valve bodies work together with the governor or
throttle of your engine to determine appropriate speeds for shifting gears. If
the transmission valve bodies are faulty, it will usually result in your
automatic transmission not being able to shift gears and may also result in a
lot of smoke from your transmission or manifold area.
3.
Remember that valve bodies become faulty in
several areas such as the vacuum pumps. If you intend to replace your valve
bodies, you can first place the actuating rod into the hole of the new
transmission modulator valve and then carefully insert the valve into the
receptacle hole. As you insert the new modulator, you will probably hear a
snapping sound which indicates that the O-ring has been sealed. Reinstall the
bracket on the modulator and secure it with the bolts. A vacuum pump and stand
are among the most useful tools any shop can have for troubleshooting automatic
transmissions.
As valve bodies wear out, issues
become more common; thus knowing how to use the right tools will be
increasingly crucial skills for technicians.
Sunbelt Valve Body Builder
4819N Cortez Ave Tampa, FL 33614
(813)961-5560
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