Your diesel truck works as hard as you do. You rely on this powerhouse every day. Generally, you should let us here at United Diesel Repair service your transmission every 30,000 miles. You should also bring your truck to our shop immediately if you notice any of the problems listed below. These problems are signs that your diesel truck’s automatic transmission is going out.
Burning Odors
One thing that will make your transmission overheat is low transmission fluid. When we check your transmission, part of this service is to check the fluid to see if it needs to be changed. We also checked to make sure that the levels are correct. If your transmission fluid is low, your transmission will overheat and you will smell burning odors coming from underneath your truck.
Check Engine Warning
Transmission problems are often accompanied by a check engine warning light. This is because there is no transmission light on your dashboard. The check engine light is designed to let you know that there’s a problem with your diesel truck. In this case, that problem is the transmission.
Complete Unresponsiveness
If your automatic transmission is going out, it will not respond when you put it in gear. No matter whether you put it in Drive or Reverse, the transmission will not go into gear. This is definitely a sign that your transmission is going out and it may be preceded by hesitation to go into gear.
Problems Shifting Gears
Obviously, if your diesel truck’s transmission is going out, it will have problems shifting gears. It may not complete the gear cycle, or it may skip a gear or two in the cycle. It may also slip out of gear back into neutral while you are driving the truck.
Shaking or Vibrating
As you know, your diesel truck’s automatic transmission shifts gears smoothly. If your truck has started to shake or vibrate throughout the gear shift cycle, this is an indication that there is a problem with the automatic transmission. It could be that the transmission fluid is too low.
Strange Noises
The gear shifts should also be silent. The only thing you should hear is the change in revolutions-per-minute in your diesel engine. If you hear strange sounds such as grinding, clunking, or squealing when the transmission shifts gears, you have a transmission problem.
Finally, if you see red spots underneath the center of your diesel truck, your transmission is leaking and you need to call United Diesel Repair in Flowery Branch, GA, right away.