Automotive maintenance often raises questions, particularly when drivers notice unusual behavior in their vehicles. A recent Q&A session with a car expert provided insights into various concerns, ranging from transmission issues to the legality of studded tires in New York.
Transmission Hesitation in Cold Weather
One driver reported experiencing a noticeable hesitation in the transmission of their 2010 Chrysler 300 shortly after starting the vehicle. The issue occurs when the engine and transmission are cold, typically during initial acceleration or while shifting through lower gears. This sensation disappears after about five to ten minutes of driving, once the vehicle reaches its optimal operating temperature.
According to the expert, cold transmission behavior can be normal; however, if this is a new development, it may require further investigation. The driver is advised to check essential components, including fluid levels, fluid condition, and the shift cable adjustment. The issue could stem from a sticking valve in the transmission valve body or a weak transmission pump. In cases where the fluid is severely burnt, a flush and filter change may be necessary.
Insights on Studded Tires
Another inquiry focused on studded snow tires, with a service representative claiming they are now illegal in New York. The expert clarified that studded tires are legal in the state but are permitted only from October 16 through April 30. While they provide superior traction on ice, they can cause wear on road surfaces and offer less grip on dry roads. For those living in snow-prone regions, the recommendation is to invest in four dedicated winter tires for optimal safety.
Stalling Issues in High-Mileage Vehicles
Concerns were also raised about a 2019 Mini Countryman with over 200,000 miles that occasionally stalls after startup. The dealership suggested using premium gasoline, which the owner is now doing, along with periodic use of a fuel injector cleaner. The expert suspects carbon buildup in the combustion chamber and intake valves may be the underlying problem. A recommended approach includes using a combustion chamber cleaner, and if issues persist, a professional cleaning using a walnut sand blaster might be necessary.
The Challenge of Becoming a Mechanic
A broader industry concern emerged from discussions about the challenges of becoming a mechanic, often referred to as the “30-30-30 rule.” This term highlights the significant financial burden on new mechanics, who may spend $30,000 on education and another $30,000 on tools, only to earn a similar amount annually. The expert noted that many trades, including auto repair, are facing shortages. For every five workers leaving these fields, only three are entering.
Alternative training options are available, such as dealership programs and state-sponsored community college courses that can ease the financial burden. While new tools can be expensive, purchasing used equipment can save significant costs. According to Indeed.com, starting pay for entry-level mechanics ranges from $20 to $25 per hour, with experienced technicians earning between $50,000 and $75,000 annually, and some high-level technicians making as much as $175,000.
Diagnosing Sensor Issues in Luxury Vehicles
A reader also inquired about a malfunctioning “park assist” rear sensor in their 2011 Mercedes Benz E 350. The expert indicated that the issue could be linked to a faulty sensor, module, or wiring problem. Replacing the sensors typically requires removing the bumper, but a visual inspection and a computer system scan can help determine the exact cause. If comfortable, the owner may handle the repair themselves, as the service manual states that sensor replacement does not necessitate recalibration of the park assist system.
Reviving a Long-Dormant Truck
Finally, one individual reported difficulty starting their truck after it had been unused for six months. After replacing the battery, the truck started but died shortly thereafter. The expert recommends checking the charging system, particularly the alternator, to ensure it is functioning properly. A failing alternator could lead to the new battery becoming discharged, resulting in further starting issues. Additionally, inspecting wiring connections from the battery to the starter and engine ground is crucial, as corrosion can impede performance.
In summary, vehicle maintenance requires attention to various factors, from understanding transmission behavior to knowing the legalities of tire use. For those facing similar issues, seeking professional advice or undertaking basic inspections can lead to improved vehicle performance and safety. Do you have a car question? Reach out to the Car Doctor for personalized assistance at [email protected].
