3 Semi Transmission Red Flags Not To Ignore

Posted on: 11 April 2017

Whether you're an over the road or short haul driver, the proper function of your semi is critical to your business. A major problem like transmission failure can leave you stranded on the side of the road, losing out on valuable profits. The ability to recognize a problem with the transmission before it fails is critical. Here are just some of the things you can look for to recognize a problem early on.

Rough Shifting

While it is not necessarily meant to be a seamless process, the process of transitioning from gear to gear is not one that should be rough or jolting. If you have an automatic transmission, a rough shift could be an indication of the failure of one of the sensors that operate within the transmission's computer system.

Typically, replacing the sensor will resolve the issue. If you have a manual transmission, this could signal an issue with the actual gear you are switching to. In either case, have the truck inspected as ignoring the shifting concerns will only lead to more significant issues in the future.

Unusual Sounds

Unusual sounds when driving is another red flag it's best not to ignore, particularly with a manual transmission. Squeaking or grinding sounds when operating the clutch could mean that the bearing that supports the clutch is failing.

If you ignore it and the bearing completely falls, this could leave you unable to operate the clutch, which ultimately leaves the truck inoperable. If you hear these sounds not just when you are depressing the clutch, but also when driving, this could mean that several bearings could be failing, which is often an indication of extensive wear.

Shifting Stalling

When you transition between drive to reverse, or any other gear for that matter, this movement should be near instant. When you start to notice a hesitation or stalling as you change gears, this is a red flag. In some cases, it could be a problem with the throttle valve cable, which is often on the easier end of the spectrum in terms of repairs.

Unfortunately, this type of behavior when driving could also be indicative of a transmission that is about to completely fail. Generally, if the latter is the case, you will start to notice your truck behaving in this manner more frequently.

If you suspect there is an issue with your transmission, it's best to focus your attention and make a repair a priority. Transmission concerns are often progressive and will only worsen over time. Take you truck to an auto repair shop like Jason's Auto Repair as soon as possible.