FAQs—Chevrolet C4500 Kodiak
I was driving one night when I noticed that the speedometer of my Chevrolet C4500 Kodiak was not working properly. It said I was going 85, when I was only doing 40. I thought something was wrong with my speed sensor, based on my research. I replaced my speed sensor, yet the problem persisted. What could be causing the problem?
It's good to know that you did your research and tried to fix your speedometer by replacing the speed sensor since this is exactly the part that detects the speed. However, since your quick fix didn't work, there might be a problem with the entire instrument or gauge cluster. This cluster contains the speedometer, tachometer, fuel, oil, and other gauges. When this cluster fails due to wear and tear, then all of its parts are affected. What you can do is to replace the whole cluster with a new one. You can do the repair at home as long as you have a basic knowledge on soldering electronics and complete tools. You need to replace the defective cluster immediately, or else you will continue to receive incorrect readings, which can hamper your driving. You may also check your powertrain control module (PCM) if it has also been compromised. In this case, you need to have it "re-swiped" by a technician using a scan tool.
Yesterday, I was driving at an approximate speed of 55 mph when suddenly I felt my front axle shook. I checked my tires and found out that those in the front had worn out faster than in the rear. My mileage is only at 18,000. What could possibly be the reasons for the vibration and the uneven tire wear? Should I be alarmed?
This is not a new problem to heavy-duty vehicle owners, especially to a Kodiak owner like you. What you can do is first, have your tires checked for alignment. If that's not the problem, you may need to have your front axle replaced. If your axle has been confirmed to be the root cause, then it is important to have it replaced immediately to avoid further tire wear. Also, make sure to practice tire rotation to keep the tires in the same condition.
The injectors of my Chevrolet C4500 Kodiak all failed at different times. I brought it to the dealer, and they said that the problem is no longer covered by my warranty because I have water in the fuel. I didn't know how that happened. What should I do?
Corrosion is the most common culprit of failed fuel injectors. When water combines with acid, it is the formula for the metallic components of your car to wear out. It is important to ensure that your components are free from rust and leaks. Make sure that your truck is properly maintained to avoid this kind of problems. When neglected, it can lead to engine damage, which is very costly. In this case, you have no choice but to have your failed injectors replaced as soon as possible.