Car Care Tips

St. Johns Drivers: Is It Time to Replace Your PCV Valve?

The crankcase is the lower part of the engine where the crankshaft is housed and where the engine oil lives. The crankshaft is connected to the pistons that power the engine.


When you are diving around St. Johns , fuel is burned in your vehicle engine, it pushes the pistons down and the crankshaft rotates and sends power to the transmission. Some of the explosive gases from combustion squeeze past the pistons and down into the crankcase.

Now this gas is about 70% unburned fuel. If it were allowed to remain in the crankcase, it would contaminate the oil and quickly turn it to sludge. Sludge is like Vaseline and clogs passages in the engine, leading to damage.

Also, the pressure build up would blow out seals and gaskets. So in the old days, there was just a hose that vented the crankcase out into the air. Obviously, not good for our air quality in St. Johns , Florida.

Enter the PCV valve. It's a small, one-way valve that lets out the gases from the crankcase and routes them back into the air intake system where they are re-burned in the engine. Fresh air comes into the crankcase through a breather tube. This makes for good circulation in the crankcase. And that gets the air out. As you can imagine, however, the valve gets gummed up over time.

Your vehicle manufacturer usually recommends they be changed somewhere between 20,000 to 50,000 miles/30,000 to 80,000 kilometers. Unfortunately, PCV valve replacement is left out of some vehicle owner's manuals, but your friendly service advisor at Tuffy St. Johns, we will make sure your PVC is replaced if needed.

Tuffy St. Johns
2770 Racetrack Rd.
St. Johns , Florida 32259
904.230.3363

Latest Posts

Categories

Air Conditioning
Alignment
Automotive News
Battery
Brakes
Cabin Air Filter
Check Engine Light
Cooling System
Dashboard
Diagnostics
Diesel Maintenance
Differential Service
Drive Train
Emergency Items
Engine Air Filter
Exhaust
Fluids
Fuel Economy
Fuel System
Headlamps
Inspection
Keys to a long lasting vehicle
Maintenance
Monitoring System
Older Vehicles
Parts
Safety
Serpentine Belt
Service Intervals
Service Standards
Shocks & Struts
Steering
Suspension
Timing Belt
Tires and Wheels
Transmission
Warranty
Windshield Wipers

Archives

October
September
August
July
June
May
April
March
February
January
December 2016
November 2016
October 2016
September 2016
August 2016
July 2016
June 2016
May 2016
April 2016
March 2016
February 2016
January 2016
December 2015
November 2015
October 2015
September 2015
August 2015
July 2015
June 2015
May 2015
April 2015
March 2015
February 2015
January 2015
December 2014
November 2014
October 2014
September 2014
August 2014
July 2014
May 2014
April 2014
March 2014
February 2014
January 2014
December 2013
November 2013
October 2013
September 2013
August 2013
July 2013

your local Tuffy, please enter your zip code or city and state for the location nearest you.