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AUTONET TV

PCV Valve Replacement

Posted January 26, 2020 10:00 AM



Hello Lafayette, let's talk about your often-unnoticed but extremely important PCV valve. The energy from exploding fuel is what powers your engine. But some of the vapors from the explosions escape into the lower part of the engine, called the crankcase. The crankcase is where your engine oil hangs out. These gases are about 70% unburned fuel. If the gases were allowed to stay in the crankcase, they would quickly contaminate the oil and turn it to sludge. Lafayette folks know that sludge is one of the biggest enemies of your engine, clogging it up and eventually leading to expensive failures. Also, the pressure buildup would cause seals and gaskets to blow out. Therefore, these gases need to be vented out.

Pre-1963, gasoline engines had a hose that let the  fumes vent out into the air. In 1963, the federal government required gas engines to have a special one-way valve installed to help reduce dangerous emissions. (Can you imagine how polluted our IN air would be if every car had been releasing those poisonous fumes for the last 50 years?) Diesel engines are not required to have these valves.

The positive crankcase ventilation (PCV) valve routes crankcase gases through a hose and back into the air intake system where they are re-burned in the engine. Fresh, clean air is brought into the crankcase through a breather tube. It's really a pretty simple system, but it does the job. The re-circulating air removes moisture and combustion waste from the crankcase, preventing sludge. This extends not only the life of your oil but the engine as well. The PCV relieves pressure in the crankcase, preventing  oil leaks.


Eventually, the PCV valve can get gummed up. Then it can't move enough air through the engine to keep it working properly for Lafayette vehicles. If the PCV valve is sticking enough, you could have oil leaks, excess oil consumption and a fouled intake system. If you experience hesitation,  surging or an oil leak, it may be a sign of PCV valve problems. Your vehicle's owner's manual may give a recommendation for when the PCV valve should be replaced - usually between 20,000 mi/32,000 km and 50,000 mi/80,000 km. Unfortunately, some don't list a recommendation in the manual, so it can be easy to overlook.


Many PCV system problems can be diagnosed by our technicians at B & M Auto Specialist . Fortunately, PCV valve replacement is both quick and inexpensive at B & M Auto Specialist. Proper oil changes will greatly extend the life of the PCV valve. Skipping a few recommended oil changes can allow varnish and gum to build up in the valve, reducing its efficiency. So now when your Lafayette service technician tells you its time to replace your PCV valve, you will know what he's talking about. If you have had your car for a while and this is the first you've ever heard of a PCV valve, ask your technician to check yours out or call B & M Auto Specialist at 765-448-4532.

B & M Auto Specialist
710 Navco Dr
Lafayette, IN 47905
765-448-4532
http://www.bmautospecialists.com



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What People Say About Us

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    , 02/06/2020

    They were quick and efficient in servicing my car and gave a written recommendation which was honored by Firestone.

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    , 01/11/2020

    Good service..

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    , 01/02/2020

    I highly recommend for any electrical repairs on your car to go to this place!

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    , 12/08/2019

    They do good work at a reasonable price

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    , 12/06/2019

    Very helpful

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    , 11/02/2019

    I have used B&M quite often for electrical issues and parts. If you can?t figure it out, they will!! The customer service is pretty good. The one thing I will tell you is with this place, you definitely pay for what you get!

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    Great customer service!

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    Alternator went out. Called B & M electric and they told me to come in. They installed it immediately. It was excellent service! They put it on and we was right on our way in less than an hour!!

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    Was an amazing place to take electronic devices to get repairs.

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    Excellent service. The owner was very nice and very helpful.

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    I've had nothing but good experiences here. Over the years I've pulled several failing alternators and starters and brought them in for overhaul. Most recently they diagnosed a bad alternator pulley. I couldn't get the alternator out myself, due to hidden bolts and zero clearance, so I had them do the whole job. Sure, they charge for their time, and expect to cover costs and make a profit. What's wrong with that?

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    These guys are professionals. The work they did on my Jeep couldn't have been done better anywhere else.

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    Always great service here.

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    Excellent prompt and professional service. Very good!

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    I am the owner of Auto Express, and B & M services cars for us to prep them for sale on a daily basis. They have great mechanics and very reasonable prices. I would recommend them for all your auto repairs!

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    Fast service, competitive prices...what more could you want? I hope not to come back, but if I have to, I will. You should too.

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