How To Diagnose a Vehicle by Looking at Exhaust Smoke

How To Diagnose a Vehicle by Looking at Exhaust Smoke

Monitor the Exhaust Color

It’s always a good idea to take a look at the exhaust emitted from your vehicle. If the exhaust smoke from your car changes color, it might have a problem. Listed below are the exhaust smoke colors that mean you need to have your vehicle checked (and what to look for).

Blue exhaust smoke – burning engine oil usually causes blue smoke and the oil may be leaking into the combustion chamber. Another option is that the piston rings, valves and cylinders have become too worn. An ASE-certified professional should look at this to prevent further damage.

Black or gray exhaust smoke – incomplete combustion of fuel creates smoke that mixes with the exhaust. A clogged air filter, blocked manifold or an oil leak could cause dark black or charcoal gray exhaust as well. The carburetor, choke, fuel injection and emission system should also be checked for malfunctions.

White exhaust smoke – appears when coolant and water are vaporized in the combustion chamber. A mechanic will look for a cracked engine block, a leaking head gasket or damaged cylinder heads. Although, insufficient engine heat is another, more serious, cause.

Exhaust System Service at Westchase

If you’ve noticed the exhaust has mysteriously changed colors, put one of our ASE-certified technicians on the case! At Christian Brothers Automotive Westchase, we believe preventative care is the best way to keep your car in the best shape possible. Most of our services are backed by the 2-year/24,000-mile Nice Difference warranty. With a strong warranty like this, you know your vehicle is in the right hands. Schedule your exhaust system service today – the nice difference is just a phone call away!