Skip To Content

Best Auto Repair, Tucson

EAST LOCATION8455 E Broadway Blvd Tucson, AZ 85710

(520) 223-4630

CENTRAL LOCATION5302 E Speedway Blvd Tucson, AZ 85712

(520) 201-3500

NORTHWEST LOCATION4443 W Ina Rd, Suite 141 Tucson, AZ 85741

(520) 213-8351
Opening Hours
  • Mon 8:00AM - 5:00PM
  • Tue 8:00AM - 5:00PM
  • Wed 8:00AM - 5:00PM
  • Thu 8:00AM - 5:00PM
  • Fri 8:00AM - 5:00PM
  • Sat 8:00AM - 12:00PM
  • Sun Closed
CONTACT US

AUTONET TV

Positive Crankcase Ventilation ? PCV Valve Service at AASTRO Transmission & Auto Repair

Posted September 26, 2021 8:04 AM

Hello Tucson! Did you know that the first federally-mandated emissions control device was introduced in the 1960's? The Positive Crankcase Ventilation valve, or PCV valve, has been installed in AZ vehicles since 1964 and represents the first legislation by the United States government to regulate harmful emissions as well as to improve performance in the country's vehicles.

The PCV valve, as you can probably guess, is located on the crankcase. The crankcase is the lowest part of a vehicle's engine. It houses the crankshaft and the engine oil. The crankshaft connects to the pistons that power the engine.

Pistons are pushed down when fuel is burned in an engine. This causes the crankshaft to rotate, which sends power to the transmission.  It ultimately turns the axles and causes the vehicle to move. Some of the gases released by the burning fuel squeeze around the pistons and down into the crankcase.

If the escaped gases mix with the engine oil in the crankcase, oil sludge develops. This sludge has the consistency of petroleum jelly and can cause damage by clogging up passageways in the engine. Further, escaped gases can build up pressure inside the crankcase that can blow out seals and gaskets.

Before 1964, a hose was attached to the crankcase that vented escaped gases out into the air. These gases contained about 70% unburned fuel as well as harmful emissions. The PCV valve was designed to curb these harmful emissions as well as recapture unburned fuel.

The PCV valve is a small, one-way valve that allows escaped gases to exit the crankcase. The gases are then routed into the intake system so they can be re-burned in the engine. Fresh air enters the crankcase through a breather tube to facilitate this circulation and keep the air in the crankcase clean.

The PCV valve, like most working parts on a vehicle, will wear out over time. Usually it simply gets gummed up. Preventive maintenance, including routine oil changes at AASTRO Transmission & Auto Repair in Tucson, will extend the life of the valve, but eventually it will have to be replaced. A sticking PCV valve won't allow gases to circulate properly, which can increase pressure in the crankcase. Over time, that pressure will lead to oil leaks.

Your vehicle manufacturer recommends that a PCV valve be replaced every 20,000 to 50,000 miles (32,000 to 80,000 kilometers), depending on the vehicle and Tucson driving conditions. It's an inexpensive repair but may not be included in the maintenance schedule in your owner's manual.  So if you're looking for auto advice about the PCV valve, you may have to ask our pros at AASTRO Transmission & Auto Repair.

Taking care of our PCV valve protects the environment in AZ and improves vehicle performance. It's just part of good vehicle care for Tucson drivers and a way all of us can do our part to improve the world we live in.

AASTRO Transmission & Auto Repair
5302 East Speedway
Tucson, AZ 85712
(520) 325-5500
https://www.aastrotransmission.net



Search



Archive

September 2017 (15)
October 2017 (5)
November 2017 (4)
December 2017 (3)
January 2018 (5)
February 2018 (4)
March 2018 (4)
April 2018 (4)
May 2018 (5)
June 2018 (4)
July 2018 (5)
August 2018 (4)
September 2018 (5)
October 2018 (4)
November 2018 (4)
December 2018 (5)
January 2019 (5)
February 2019 (4)
March 2019 (5)
April 2019 (4)
May 2019 (4)
June 2019 (5)
July 2019 (4)
August 2019 (4)
September 2019 (5)
October 2019 (4)
November 2019 (4)
December 2019 (5)
January 2020 (5)
February 2020 (4)
March 2020 (5)
April 2020 (4)
May 2020 (5)
June 2020 (4)
July 2020 (4)
August 2020 (5)
September 2020 (4)
October 2020 (4)
November 2020 (5)
December 2020 (4)
January 2021 (6)
February 2021 (4)
March 2021 (4)
April 2021 (4)
May 2021 (5)
June 2021 (4)
July 2021 (4)
August 2021 (5)
September 2021 (4)
October 2021 (5)
November 2021 (4)
December 2021 (4)
January 2022 (6)
February 2022 (4)
March 2022 (4)
April 2022 (4)
May 2022 (5)
June 2022 (4)
July 2022 (5)
August 2022 (4)
September 2022 (4)
October 2022 (5)
November 2022 (4)
December 2022 (4)
January 2023 (5)
February 2023 (4)
March 2023 (4)
April 2023 (5)
May 2023 (4)
June 2023 (4)
July 2023 (5)
August 2023 (4)
September 2023 (4)
October 2023 (5)
November 2023 (4)
December 2023 (5)
January 2024 (5)
February 2024 (4)
March 2024 (4)

Categories

Air Conditioning (11)Alignment (12)Alternator (3)Auto Safety (5)Automotive News (6)Battery (14)Brake Service (1)Brakes (16)Cabin Air Filter (6)Check Engine Light (3)Cooling System (9)Customer Detective Work (1)Dashboard (3)Diagnostics (2)Diesel Maintenance (1)Differential Service (2)Drive Train (9)Emergency Items (1)Engine Air Filter (2)Exhaust (7)Fluids (12)Fuel Economy (4)Fuel Pump (1)Fuel Saving Tip: Slow Down (1)Fuel System (32)Headlamps (4)Inspection (4)Keys to a long lasting vehicle (4)Maintenance (41)Monitoring System (2)Oil Change (2)Older Vehicles (3)Parts (5)PCV Valve (1)Safe Driving (1)Safety (5)Serpentine Belt (4)Service Intervals (5)Service Standards (6)Shocks & Struts (4)Steering (6)Suspension (1)Timing Belt (4)Tire Rotation and Balancing (2)Tires (4)Tires and Wheels (30)TPMS (1)Transfer Case Service (1)Transmission (3)Trip Inspection (1)Warranty (1)What Customers Should Know (35)Wheel Bearings (1)Windshield Wipers (7)Winter Prep (3)Winter Tires (1)

coupons

$149.99 Transmission Service, Engine Oil Change, Tire Rotation and 41 point vehicle inspection

view coupon

Transmission Service Includes up to 4 qts of conventional fluid (synthetic extra), filter & pan gasket

Engine Oil Change includes up to 4 qts of conventional oil (synthetic extra) and filter

  • ASE (Automotive Service Excellence)
  • IATN (International Automotive Technicians' Network)
  • Automatic Transmission Rebuilders Association
  • Mitchell1
  • ASA (Automotive Service Association)
  • Automotive Training Institute
  • Atsg
  • Enterprise
  • Interstate Batteries
  • Wynn's
  • LubeGuard
  • Royalty Rewards
  • FVP
  • Car Care Aware

Testimonials

, 03/23/2024
Did an Engine Replacement on my BMW Great Job good Technicians Still Fine Tuning the Car.
view all reviews
TAP TO CALL NOW
EAST LOCATION520-298-1103
CENTRAL LOCATION520-325-5500 NORTHWEST LOCATION520-744-0655 X