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Engine Trouble: 6 Warning Signs

Engine Trouble: 6 Warning Signs

When you first notice a sign of engine trouble, you'll want to be proactive about addressing it. By waiting, the problem could soon escalate to the point that your engine needs more complex repairs. Here are six signs of engine trouble.

Knocking Noise

If your engine gets dangerously low on oil, then insufficient lubrication could lead to a repetitive knocking sound. Another reason you might hear a knocking noise is if the air-fuel mixture ignites on its own rather than by way of spark plugs, which is an issue that should be brought to a mechanic's attention.

Check Engine Light Turns On

When the check engine light comes on, it doesn't always indicate that engine failure is imminent. But you'll still want to soon visit the shop for diagnostics so that any emerging problems can be taken care of before they get worse.

Power Loss

It's not automatically a red flag if your old car has slowly lost a bit of power as it has aged. But if there's a sudden and substantial loss of power, then you could be dealing with a serious issue such as worn-out pistons.

Vehicle Stalls when Idling

Oftentimes, this results from a fuel delivery problem. Stalling out in traffic can put you in harm's way, so it's definitely best to address fuel delivery issues as soon as you can.


Because overheating can cause major engine trouble, such as a cracked block, you'll want to always keep your cooling system in great shape. Leaks in the cooling system are often the cause of overheating.

Discolored/Excessive Exhaust Smoke

You can look to the smoke's color to get a hint about the problem. An oil leak can cause exhaust smoke to have a blue tint. White smoke suggests that coolant is leaking. Black smoke is an indication that an excessive amount of fuel is being burned.

If you need auto repair, be sure to visit a reputable mechanic. For engine repair in Lansing and Lansing Charter Township, contact the experts at O'Donnell's Auto & Truck Repair. You can reach our Pennsylvania Avenue location at (517) 224-5918. Feel free to give O'Donnell's Auto & Truck Repair a call today to make an appointment for any of your vehicle's repair or maintenance needs!

Posted: May 31, 2021