Check Engine Light Hydraulics Mechanic 
Tomorrow's Technician
OCTOBER 30, 2023
A customer who had a 2007 BMW X3 was having an erratic problem with the check engine light coming on and an issue with the transfer case 4W operation. engine and 6L45 transmission with 65,000 miles on it. The AWD vehicle had a 3.0L The Bimmer was driven with a scanner to see what was up.
RepairSmith
MARCH 10, 2025
It controls fluid flow for smooth gear shifts and works with solenoids , sensors, and hydraulic circuits to automate shifting. Type of valve body : Your vehicle may have an electronic or hydraulic valve body, which can impact the price. How Is a Transmission Valve Body Replaced?
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Brake & Front End
NOVEMBER 6, 2023
A customer who had a 2007 BMW X3 was having an erratic problem with the check engine light coming on and an issue with the transfer case 4W operation. engine and 6L45 transmission with 65,000 miles on it. The AWD vehicle had a 3.0L The Bimmer was driven with a scanner to see what was up.
RepairSmith
NOVEMBER 20, 2024
Fluid Leaks Pressing the brake pedal compresses the brake fluid , creating hydraulic pressure in the brake lines. This hydraulic pressure transmits force to the front and rear calipers or each wheel cylinder, which engages the brake pads or shoes, respectively. Once the mechanic diagnoses the issue, they’ll begin fixing it.
RepairSmith
APRIL 26, 2024
A transmission solenoid is an electro-mechanical valve that controls the flow of transmission fluid. This engages the torque converter, which uses this hydraulic pressure to shift to the correct gear. Transmission control solenoid: Regulates the pressurized hydraulic fluid (line pressure). It can indicate several problems.
The NAPA Network
MARCH 6, 2024
Low Transmission Fluid Your automatic transmission relies on hydraulic fluid pressure to operate. Low Transmission Fluid Pressure You should be seeing a pattern of how important hydraulic fluid is to the operation of an automatic transmission. These issues can range from a simple fix to needing a complete transmission rebuild.
RepairSmith
NOVEMBER 30, 2023
If the warning pops up without registering any specific code, it’s best to ask a mechanic to identify and fix the issue. Symptoms: ABS warning or Check Engine Light illuminated , reduced fuel economy Solution: Replace faulty sensors 2. This can result in increased emissions and trigger the Check Engine Light.
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