PCV Valve Service at Kwik Kar Saginaw in Saginaw
August 2, 2026
Today, we are talking about your PCV valve. Unburnt fuel is forced into the crankcase as your engine runs. The PCV (positive crankcase ventilation) valve vents this unburnt fuel and oil vapors from the crankcase and sends it back into the air intake system to be burned in the engine. A clogged PCV will not allow these vapors to escape. This can dilute and contaminate the oil, leading to damaging engine oil sludge. It can also cause vehicle engine corrosion, something we see occasionally at Kwik Kar Saginaw. At high speeds on TX freeways, the pressure can build up to the point that gaskets and seals start to leak.
Back in the old days, vehicles were simply installed with a hose that vented these gases out into the atmosphere. But starting in the 1964 model year, environmental protection laws required that these gases be recycled back into the air intake system to be mixed with fuel and burned in the vehicle's engine.
This is much better for air quality and improves fuel economy also. (Budget-conscious Saginaw drivers take note!) The little valve that performs this important function is the PCV valve. The PCV valve lets gases out of the engine, but won't let anything back in. Over time, the vented gases will gum up the PCV valve and it won't work well. That can lead to all of the problems I've already described, oil leaks, excessive oil consumption and decreased fuel economy.
Fortunately, it's very easy to test the PCV Valve at Kwik Kar Saginaw in Saginaw and quick and inexpensive to replace. Even so, it's often overlooked because many Saginaw vehicle owners don't know about it. Check your vehicle owner's manual or ask your Kwik Kar Saginaw service advisor. If this is the first time you've heard of a PCV valve, you might be in line for a replacement.
There's another aspect to the PCV system. In order for the valve to work correctly, it needs a little clean air to come in. This is done through a breather tube that gets some filtered air from the engine air filter. Now some vehicles have a small separate air filter for the breather tube called the breather element. That'll need to be replaced at Kwik Kar Saginaw when it gets dirty.
Please ask your Saginaw service advisor about your PCV valve. For the price of a couple of burger combo meals in Saginaw, you can avoid some very engine repairs.
Kwik Kar Saginaw
1216 S. Blue Mound Rd.
Saginaw, TX 76131
817-231-1700
www.kwikkarsaginaw.com
Need Service?
More articles from Kwik Kar Saginaw

Getting Off to a Running Start (Starter Replacement)
November 1, 2026
When you start your vehicles engine, theres another motor that makes that whole process possible. Its called the starter, and its a small electric motor that gets your vehicle running. As you can imagine, its quite a chore for a little electric motor to turn over the big engine that powers you... More

Maintaining Your Diesel in Saginaw
October 25, 2026
Diesel engines have been used extensively in Europe and Asia for many years. They haven't been as common in the Saginaw area because of the high sulfur content in our diesel fuel. But the government is now mandating lower sulfur content and, as a result, we are going to see more Saginaw diesel-... More

Differential Essential (Differential Fluid Exchange)
October 23, 2026
What's the dif? To an automotive technician, it's the differential, a part of your vehicle that helps direct power from the engine to the wheels. The differential is a gearbox that enables the drive wheels to turn at different speeds (they do that when you turn). Inside the differential is a f... More
