Troubleshooting & Symptoms

No Recess!

Press 6 minute read

I can remember back when Total Cost Involved was about to drop the '58 Chevy 235 engine and Gear Star Turbo 350 trans in my '39 just as they finished...

What Happens When a Transmission Range Sensor Goes Bad?

Press 9 minute read

The transmission range sensor tells the transmission control module which gear the shifter is in. When it goes bad, the TCM works off bad information and...

What Happens If Your 700R4 TV Cable is Out of Adjustment?

What Happens If Your 700R4 TV Cable is Out of Adjustment?

GEARSTAR PERFORMANCE 4 minute read

SUMMARY:Throttle valve cables manage the hydraulic pressure and shift timing of your transmission. When the TV cable isn’t in sync with your throttle, it can affect...

Why Proper Cooling is Critical for GM Transmissions: Prevent Overheating in Your 4L70E, 4L75E, or 4L65E

Why Proper Cooling is Critical for GM Transmissions: Prevent Overheating in Your 4L70E, 4L75E, or 4L65E

GEARSTAR PERFORMANCE 6 minute read

Effective cooling is essential to maintaining the performance and lifespan of older GM transmissions like the 4L70E, 4L75E, and 4L65E. Low or contaminated...

Can You Drive with a Bad Transmission Valve Body? What You Need to Know

Can You Drive with a Bad Transmission Valve Body? What You Need to Know

GEARSTAR PERFORMANCE 7 minute read

Driving with a bad transmission valve body can cause serious damage to your vehicle’s transmission, harm your driving experience, or even result in avoidable...

The Fundamentals Of Transmission Slipping: Causes, Signs, and Prevention

Imran Khan 6 minute read

Your vehicle's transmission is vital for converting power from the engine into motion, allowing your car to move smoothly. Whether you're driving a...

Recognizing Low Transmission Fluid Symptoms: Why Transmission Fluid Matters

Recognizing Low Transmission Fluid Symptoms: Why Transmission Fluid Matters

GEARSTAR PERFORMANCE 6 minute read

Most of us would agree that we need to check the transmission fluid in a vehicle before moving forward. While looking for those issues is not always...

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