I have a Freightliner Columbia. When I turn the truck on, it sounds like it's trying to start but it doesn't. What could be the problem?
If you can hear the Freightliner Columbia's engine turn over but it refuses to start, it could be because of insufficient fuel, spark, or compression. These three are necessary for your truck's engine to actually start. One of the most common reasons for the engine to not receive enough fuel is because of a bad fuel pump. If the fuel pump is working, it should make a noticeable noise when you turn on the ignition. Have someone else turn the key while you listen for that noise. If you can't hear it, then the fuel pump is likely faulty and needs to be replaced. If your truck has an engine with fuel injection system, the system itself may fail, causing the engine to not receive fuel, thus resulting in your truck not starting. Finally, it could be as simple as your vehicle not having enough fuel in the tank, so check this first before trying to troubleshoot other components.
My Freightliner Columbia won't go over 40 mph. Any idea on how I can fix this?
There are many reasons why your Freightliner Columbia is not accelerating properly or at all, and you have to go through them one by one until you find out the actual cause for your truck. First, the clutch may not be properly engaging the gearbox with the engine because of a mechanical error. A faulty timing belt may also be why your truck is not accelerating. This component tends to break over time due to normal use, but you can prevent problems like improper acceleration by replacing the timing belt every 60,000 miles even if it still looks good. Another possible reason why your truck is not going over 40 mph is a dirty fuel filter. The fuel filter is generally responsible for blocking dirt from flowing through the hose and contaminating other components. However, if you don't clean or replace it once a year, dirt will start building up, causing it to prevent the fuel from getting to the engine.
I haven't driven my Freightliner Columbia for three months. Recently, when I took it out of the garage, I noticed a puddle of liquid on the ground where my truck was parked. What could it be?
The best way to find out what kind of fluid is on the ground is to touch and smell the puddle. If it's clear, watery, and under where the air conditioner is located, then it's probably just normal condensation if the air conditioner has been used recently. If it's black or dark brown, greasy, and is found underneath where the engine should be, then it's most likely oil. If this is the case, you will have to figure out which part of your truck was over the spot. Try to look around the oil filter, the engine, and under your vehicle for any leaks around the oil drain plug, the crankcase, and the other components around it. Another great way to find out what's leaking is to check your truck's fluid reservoirs and find which one is at a critically low level.