This sounds like you may have internal transmission issues on your 2005 Chevrolet Blazer. It could be caused by low transmission fluid, a faulty shift valve, or possibly burned clutches. Smell the transmission fluid. If it smells burnt, then you may need to have the transmission rebuilt or replaced. If you would like to have this checked at your car’s location, a local expert from YourMechanic can perform an inspection of your shifting issue to pinpoint what is going on.
How to Identify and Fix Common car Problems ?
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Check the Throttle Cables Changing the fluid solves plenty of transmission issues but if the problem of automatic transmission won`t shift into 3rd gear persists, the parts you should check are the throttle cables. A defective cable with excessive slack is likely to create issues with smooth shifting of the gears.
This kind of reaction is often a sign of low transmission fluid or a faulty transmission control solenoid. As you know, automatic transmissions use pressurized hydraulic fluid to change gears.
There could be a problem with the shifter cable or the shifter linkage from the transmission to the shifter. There also could be a problem with the slave cylinder, causing it to be hard to shift at times. A lot of times when the slave cylinder is going bad, it causes the car to be hard to shift at times.
Why the Transmission Won`t Shift Gears. One reason why an automatic transmission isn`t shifting into gear has to do with the fluid. If it`s not at the right level or the incorrect type has been used, then it`ll affect the gears. Another big reason has to do with the ECM possibly going bad.
Shift solenoid B allows the transmission to shift between 2nd and 3rd gear. When the powertrain control module (PCM) records code P0758, it indicates that the PCM is unable to detect the proper change in engine speed or increase in ground speed that should occur during a 2nd to 3rd gear shift.
Turn off your vehicle`s ignition and wait patiently for 5 to 10 seconds. Start the engine and allow it to idle for several seconds. Switch off the ignition and wait patiently for another 30 to 40 seconds. Repeat these steps 2 to 3 times in order to reset your vehicle`s transmission control module.
Shifting Problems– Clogged filters will make it hard to switch gears. If your car isn`t shifting smoothly, or if it hesitates or slips when you try to shift, you could have any number of transmission problems, so it`s best to have a professional look at it.
4L60E Transmission Loss of Third or Fourth Gear Problem
If you cannot shift into third or fourth gear, a worn-out clutch is typically the cause of a complete loss of third or fourth gear.
This may be a sign of low transmission fluid or a faulty transmission control solenoid. As you know, automatic transmissions use pressurized hydraulic fluid to change gears.
Rusting, power failure, irregular pressure, missing equipment, an incorrect amount of voltage or current, dirt stuck in the system and corrosion are some of the possible reasons why a solenoid valve may not properly close or open.
When the torque converter starts malfunctioning, you may feel shuddering and even slipping in overdrive. You usually notice your car shuddering because it feels like it`s vibrating. Your car will vibrate even when you`re not going very fast. The shuddering makes the car lag and is very noticeable.
Depending on the issue (low fluid is an easy DIY job), most transmission problems can only be properly diagnosed and repaired by a reputable mechanic. Most transmission repairs require specific tools and replacement parts to get them back up to speed.
For example, in some situations an oxygen sensor can cause poor shifting in your transmission – if the engine isn`t running correctly, the transmission control module may misinterpret when and where it`s supposed to be shifting, causing erratic behavior at the transmission.
A faulty crankshaft sensor is also used by the transmission as an input shaft speed sensor for the transmission to shift correctly. The sensor may affect shifting and also the way the engine runs. Your engine may also have went into failure mode if the crankshaft sensor is failing.
But a blown fuse No. 38 becomes a likely candidate causing a loss of power to the transmission solenoids.
Solenoid coil failure can be caused by a number of factors. Applying an incorrect voltage to the coil will cause it to fail and may cause the coil to burn out. Electrical surges or spikes may also damage the coil. Burnt out coils cannot be repaired and will need to be replaced.
This may be a sign of low transmission fluid or a faulty transmission control solenoid. As you know, automatic transmissions use pressurized hydraulic fluid to change gears.
This may be a sign of low transmission fluid or a faulty transmission control solenoid. As you know, automatic transmissions use pressurized hydraulic fluid to change gears.