Tips on how to Check for Transmission Challenges
1Check to determine if your “check engine” light is on by looking at your vehicle’s display panel. Be mindful that a glowing “verify engine” light doesn’t automatically mean something is wrong with your transmission; only a reading of the diagnostic computer code using a scan tool will tell you this.
2Check the “OD” light Auto diagnostics, or "overdrive" light. If this is flashing, an internal transmission problem exists that likely requires the attention of a mechanic. Again, this type of problem requires that a diagnostic tool be attached to the computer port. This is a free service of some auto mechanics and parts stores, while others charge for this.
3Check to determine if the engine is misfiring or not vibrating normally by allowing it to run with the transmission in park. By stepping on the accelerator, you can tell if the engine is running rough. In this case Vehicle Diagnostic equipment, an engine tuning will help.
4Check the automatic transmission fluid level with the dipstick by taking it out, checking the level, cleaning it off with a rag and re-inserting it. Make sure the vehicle is on even ground and examine the fluid while the engine is hot. If the level is low, add the correct fluid to bring the level up to the full mark. Verify the ground where you park your vehicle to determine if spots or a pool are present. Although you can temporarily add new transmission fluid to the engine, this problem ultimately requires attention from a mechanic, as a leak can damage the transmission internally.
5Note the transmission fluid’s hue and odor by dropping some of the fluid from your dipstick onto a paper towel. The fluid should be red or light brown and should spread. If it looks dark brown, smells burned and does not spread, the fluid probably is not good.
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