It may also not work correctly when there are electrical problems. Operating the vehicle when the transmission fluid is low may damage the valve.A solenoid valve controls the flow of fluid through a system and, if damaged, will disrupt the flow of fluid in the transmission, and the gears may not shift or work properly.Fluid problems can cause the gears to slip and the vehicle to shift irregularly or slowly. If the radiator coolant somehow mixes with the transmission fluid, problems can occur.Fluid may leak through worn seals in the transmission, torque converter, and lines too and from the transmission.Make sure the correct levels of fluid are maintained.An automatic transmission will encounter similar issues to a manual transmission depending on fluid levels and temperature extremes. When looking for leaks, you’ll usually want to check the gasket seals or input and output fluid ports.Īutomatic Transmissions of the TrailblazerĪutomatic transmissions will not have a clutch which can eliminate some of the issues you may face with your transmission. If you don’t have any leaks, it indicates there may be damage to the solenoid, which may be caused by low fluid levels or electrical problems. Gear slippage or slow shifting are symptoms of solenoid problems and may also signify the transmission has low fluid levels. If you hear noises that stop when you are in neutral, your torque converter may be the problem and may need replacement or to be fixed. Sometimes, gears can also wear and get damaged, likely from low fluid or extreme operating conditions if you experience troubles while in gear or strange noises, your gear may be worn or damaged. Worn or damaged torque converter needle bearings may cause transmission damage or failure or cause the transmission to make strange noises when operating in different driving gears. If you feel and hear grinding or brushing sounds when driving, this may mean that there is a torque converter problem. Noisy transmission in neutral could also be caused by the Worn bearings, gear teeth, or the reverse idler gear. Transmission fluid is responsible for the bumping noise in neutral gear. Slipping out of the particular gear suddenly while driving, especially if the engine slips into neutral, may mean the clutch disc may be worn and need to be replaced. Low fluid level or thickening of transmission fluid can cause shifting problems. You may experience grinding and shaking when using the clutch. When the engine doesn’t shift into gear while driving, this could indicate a problem with the clutch. Let’s find out what to look for and how to troubleshoot problems you may encounter with your trailblazer transmission.Ĭommon transmission problems include: Clutch Problems These problems may include the following: If you have a Trailblazer, you may have encountered one of the common transmission problems that occur with many transmissions. If your transmission is having difficulties, check whether any of the following symptoms occur. Many vehicles with manual transmissions do not have a dipstick and their fluid level should be checked by an automotive technician as the car will likely need to be hoisted on a lift.Transmissions are prone to several problems, especially if with heavy use or low levels of maintenance. Therefore it is important to use the exact type of transmission fluid stipulated by your Trailblazer's owner’s manual. In Chevrolet's quest for more performance and better fuel economy, Chevrolet has been coming out with innovative transmissions on a regular basis. Some vehicles are not worth the cost of expensive transmission repairs if, after adding transmission fluid, you notice that your fluid level is low again, try adding some transmission stop leak to fix the transmission fluid leaks in your Trailblazer. You may fix your Trailblazer transmission by adding some transmission fluid if it is low. If your Trailblazer hesitates when shifting gears, is slipping or seems sluggish shifting from one gear to the next (1st to 2nd gear, 2nd to 3rd gear, 3rd to 4th gear, etc.) check your transmission fluid level first. Your Trailblazer should be running when you check your transmission fluid level, otherwise the fluid level on the dipstick will not be accurate. Does your 2003 Chevrolet Trailblazer have a transmission fluid leak? This video shows how to fix minor transmission fluid leaks in a 2003 Chevrolet Trailblazer.
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