Marks Auto Service Can Repair the Causes of Strange Engine Noises

You can count on Marks Auto Service for all of your auto service and repair needs. If your car, truck, or utility vehicle’s engine starts to make strange noises, head straight to our shop. We have three auto service shops in Illinois ready to take care of you and your automobile. We are going to list the most common noises engines make below and the reasons why they make these noises.


A grinding sound coming from the engine is an unfortunate and dangerous sign. This can point to a problem with the oil circulation or little to no oil circulating through the engine. If you continue to drive your automobile when the engine is grinding, you may damage it to the point that we will not be able to repair it. Do not ignore grinding sounds in the engine.


A problem with the fuel’s detonation in the cylinders is usually what makes the engine knock. This can be a sign that you have the wrong octane rating in the tank, a problem with the spark plugs, or a lean fuel mixture. Worn rod bearings will also make the pistons knock against the cylinder walls.


If your engine is popping or tapping, especially when you first start it, you have a crack in the exhaust manifold. The popping or tapping may continue while you are driving your automobile. A cracked exhaust manifold can also make a hissing noise, as can an engine vacuum leak.


A roaring engine suggests that someone has stolen your catalytic converter. If you are parked in a public place, this is a quick and easy theft. The engine will also roar or rumble loudly if the muffler is damaged or has a hole in it. Sometimes, the engine can be so loud that you will receive a moving violation.


We mentioned above that a cracked exhaust manifold can make a hissing noise. Another problem that will make the engine hiss or sizzle is leaking fluid. Naturally, once the liquid makes contact with the hot engine parts, it will sound like bacon in a frying pan. Repairing the fluid leak will solve this problem.


Finally, your engine will squeal if the accessory belt is loose. We can tighten the belt, replace it if it is worn, or replace the tensioner if that is the problem.

Call Marks Auto Service in Rockford, Loves Park, or Belvidere, IL, today to set up a service visit for your automobile if the engine is making strange sounds.

Photo by aopsan from Getty Images Pro via Canva Pro

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