DIY Car Repair Can Severely Damage Your Car

Nowadays, there are countless DIY videos on YouTube and other websites that will tell you how to fix your car. While most people can replace a spark plug or install their own winter tires, there are repairs that should certainly be carried out by a licensed and certified mechanic.

Otherwise, as we’ve seen in many DIY automotive repair disasters, the results can be not just funny and weird, as some images below show, but also completely dangerous.

Here are eight prime examples of when it’s best to turn things over to the pros in order to protect your vehicle and yourself.

  1. Car Computer Repairs

Newer cars are filled with computers, and it’s not smart to DIY unless you’re a certified ASE master technician who has proper equipment. Whatever issues or fine tuning needs to be done, air/fuel ratios, shift points, redline limiters, etc. are best left for a pro since one wrong move and you could be shopping for a new engine.

  1. Electrical Repairs

Unless it’s replacing an old fuse or relay, certified industrial electricians should be the ones tackling electrical repairs of your car. There are endless electric wires with countless connectors, sensors, and computers plugged into them, and so much can wrong if an amateur tries to fix them.

  1. Fuel System Repairs

The fuel pump is a highly sensitive and precise piece of car equipment, and a very expensive to repair or replace if it breaks. However, if you get this repair wrong it can lead to a catastrophic failure in a vehicle, blow your car up and result in third-degree burns in the process – so it’s best to get a mechanic to repair or replace the fuel pump, tank, injectors, rails, or pressurized lines.

  1. Transmission Repairs

A car’s transmission serves a very important role to engage the car in forward drive or reverse, and it may be the most complex part of a car, with a twisted maze of gears, tensioners, bearings, and rods. If you’re considering rebuilding or replacing it, you’re in for an enormous task. Not only do you need to fit all these complex parts back where they belong in order to work, but you’ll also need some serious assistance in order to place a new gearbox in.

Even changing the transmission fluid in a car is complicated enough, let alone trying to repair the entire transmission, so leave it to an experienced car mechanic to avoid disastrous results.

  1. Timing Belt Replacement

The timing belt is an essential component that keeps your engine operating, and replacing it will require about half of your car’s engine to be disassembled. Even if your attempt to replace it is successful, reassembling the engine properly is extremely difficult, and the slightest mistake could cause long-term and irreparable harm to your car’s engine.

  1. Engine Diagnostics

The check engine light comes on, and you want to investigate and figure out why it popped up and what problem may be lurking under the hood. The fact is, unless you own very expensive automotive diagnostic equipment, there’s a very little chance of you getting to the bottom of it, and a lot of chance of causing a lot of damage.

The range of reasons for the car engine light to come on is large and could signify something simple or something very serious – so best to get a car mechanic to hook your car up to a diagnostic machine and source the problem for you.

  1. Radiator Replacement

A car radiator is an essential component of your car’s cooling system, and without it your car will overheat, leading to major engine malfunctions and expensive repair bills. While there are many videos and blogs that explain how you can replace the radiator, it’s much more challenging than it looks.

The biggest problems with DIY are that when the hoses connecting the radiator to the engine are not secure enough and come loose, it leads to significant problems; plus – if not done right, a radiator replacement could cause your engine to blow. Getting a new engine nowadays costs between $5,000 and $7,000 in most cars.

  1. Break Plumbing Repairs

Replacing a broken brake reservoir requires some very specific safety steps. And, brake job does not just involve brake pads, but also calipers, rotors, wheel bearings and brake fluid. Even the smaller things, like replacing your brake pads and rotors can put you in dangerous situation – get anything in break plumbing wrong and you could be putting yourself and the others in jeopardy.

Here are some mostly humorous examples of DIY car repairs gone badly:

Don’t make a mistake that can cost you a lot of money, cause stress, and even put you or others in danger – turn to our expert team at CNM Auto Repair for all your car repair Lancaster PA needs, no matter how small or complex they may be. We’ll ensure your vehicle is performing optimally and safely for years to come!

Contact our family owned and operated auto repair shop in Lancaster, PA today – make an appointment with our expert auto mechanics at (717) 397-1497.