There are a few things to keep in mind when doing a clutch job on your heavy-duty truck. When you remove your old 15.5" clutch and find that it's an 8 spring, measure the flywheel bore, if it's 8.5", stick in a 10 spring in...
If you go to start your truck and all you hear is a click or nothing at all, there are a few things that you can check on your starting system. Find your starter relay, then take your multimeter and find the battery side of...
The first thing to do is walk around and check to see if you can hear an air leak. If you notice a leak see if it's coming from a valve or a brake can. If it's a valve trace the lines back to the...
If you've noticed your voltmeter dropping and your lights getting dim, there are a few things you want to check before replacing your alternator. Alternators fail from either overcharging or undercharging. Some symptoms you may have for overcharging are: bright or burned out lights, batteries may...
Below are some components in an air brake system that can give you trouble within each component is a problem followed by an answer. Compressor Problem - Pumps beyond Cut-out Answer - Check gauge, check governor-make sure it pressurizes unloader port when above cut-out, check unloader plungers, Lube,...
If your compressor isn't cutting out low or high enough after installing a new air governor, you can adjust the pressure settings. You'll need a short flat blade screwdriver and a 7/16 wrench. Start the engine and build your air pressure to near desired setting. Next...
Vibrations: They come, they go, or they shake you to death. Vibrations can come from many places on your truck, so we'll try to pinpoint a few places to start looking for the solution to your shake. 1. Check for mud or clumps of dirt on the backside...
Here are a few things to keep in mind when installing a heavy-duty differential. Pull your wheels and wash the housing and tubes & hubs with solvent. Then rinse everything with water and wipe or blow-dry. Inspect the housing for damage and check that the...
As technology changes, you must also change your maintenance schedules. New engines have a tighter design and tolerances which have reduced oil consumption, fuel injector pressures and retarded timing have improved fuel burning but also have raised engine temperatures and soot loads. The latest heavy-duty...
