6 Indications of a Cooling System Issue

Right after you put your key in the ignition and turn it, your engine temperature starts climbing quickly. As long as your cooling system is healthy, the heat will be safely regulated. But if there's a problem with your cooling system, then overheating could occur, which could result in serious engine trouble. Here are six signs of cooling system trouble.


A common and easily identifiable sign of cooling system trouble is that smoke is rising up from beneath the hood. In this situation, you can wait for your engine to cool and then check your coolant level. If needed, you'll then want to add more coolant. And if you're stuck on a skinny shoulder on the side of the highway with this problem, then it's likely safest to call for roadside assistance to help you handle it.

High Reading on Temperature Gauge

You'll want to find a place to safely pull over if your temp gauge climbs into the red zone. At that point, you can call up a mechanic who can assess your situation and give you advice on whether your vehicle should be driven.

Decreasing Fuel-Efficiency

Automobiles attain optimal gas mileage when they operate at a healthy engine temperature. When running at a higher temperature, fuel-efficiency is liable to worsen.

Low Coolant Level

If your coolant is low, then it could be leaking internally. Because ethylene glycol isn't an engine lubricant, it's important that it doesn't become mixed up with your oil.

White Exhaust Smoke

An internal coolant leak can lead to white exhaust smoke. Anytime that exhaust smoke appears to be off in color, it's smart to try to identify the underlying problem.

External Coolant Leak

It's a good habit to occasionally take a look at the pavement where your vehicle is regularly parked and see if there is any evidence of leaking automotive fluids. Coolant can be identified by its bright color, which oftentimes is green, but may be a different color like pink or yellow.

If you need auto repair, be sure to bring your vehicle to a reputable mechanic. For cooling system repair in Birmingham, Homewood, and Mountain Brook, AL, contact the experts at HESCO Automotive & Performance Center at (205) 526-3796. Feel free to give HESCO Automotive & Performance Center a call today to schedule an appointment for any of your vehicle's repair or maintenance needs!

Hesco Automotive & Performance Center Blog
Posted: January 17, 2021

Written and Published By MORBiZ

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