Question about 1997 Lincoln Town Car

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How to open the crankcase.

First of all, where is it?

Second, how do I open it?

Any help is greatly appreciated. Thanks!!

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  • 178 Answers

Hello i am taken it you are asking where your oil cap is if you are look on your drivers side valve cover it usually has a oil can symbol in yellow hold pressure turn to your left install in reverse.goodluck

Posted on Sep 18, 2008


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PVC Replacement

Sorry Darryl I am not conversant with PVC connected to cars. Do you perhaps mean PCV?
Positive crankcase ventilation is sometimes controlled by a valve which should be checked, cleaned or replaced as required during routine maintenance.

The PCV valve is often found screwed into the engine valve cover and is part of the engine breather system which vents foul crankcase emissions either into the air cleaner or into the inlet manifold.

I hope this helps.

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First do an oil change , 5W/30 , and add Wynn thin upper cylinder oil to crankcase .

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PCM Valve inside transmission?

I would try another shop, A PCM Valve is not typically that hard to replace from my experience in older model Fords it sits up on top of the motor near the Crankcase.

The blowby vapors that end up in an engine's crankcase contain moisture as well as combustion byproducts and unburned fuel vapors. The crankcase is sealed to prevent the escape of these gases into the atmosphere, but the vapors must be removed to prevent oil contamination that leads to sludge formation. The positive crankcase ventilation (PCV) system siphons these vapors from the crankcase and routes them into the intake manifold so they can be reburned in the engine.
The main component in the PCV system is the PCV valve, which is usually located in the valve cover. A hose connects the PCV valve to the intake manifold. A second hose between the air cleaner and crankcase or other valve cover (V6 or V8 applications) provides fresh air to help flush the vapors out of the crankcase. Some engines have a separate air filter for the PCV breather hose located inside the air cleaner. The PCV valve is a spring-loaded valve with a specific orifice size designed to restrict the amount of air that's siphoned from the crankcase into the intake manifold. This is necessary because air drawn through the valve from the crankcase has a leaning effect on the fuel mixture much the same as a vacuum leak. So air flow through the valve must be controlled within certain limits. At idle, air flow is reduced because little blowby is produced. When the engine is cruising and vacuum is high, airflow through the PCV valve is at a maximum to purge the blowby vapors from the crankcase.
It's important to note that PCV valves are sized for specific engine applications. The wrong PCV valve for an application can flow too much or too little air causing driveability problems. Varnish deposits can clog the valve, so replacement for preventative maintenance is recommended (every 50,000 miles usually).
Not all engines have PCV valves. Some (like Ford Escort, GM FWD cars with the Quad Four engine, etc.) ventilate the crankcase with a small breather hose and calibrated orifice. There is no spring-loaded PCV valve. On these applications, no maintenance is usually necessary.

All this to say that if this shop does not know this then i would look for another shop. Try going to the Better Business Burea for your area online and check some shops that have beenin business for a while. Also read customer reviews before making a decision and call them to ask some questions to see if they have ever done one of these replacements before.
Hope this helps, Good Luck!!

May 29, 2012 | 2007 Ford Freestyle

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I have a 2002 Chevy Blazer with a 4.3. It has two engine codes, p0170 and p0172, which I believe are fuel rich bank one and two. It starts great, but after warming up, is very hard to start and requires...

Can you post the fuel pressure spec for us? You have the spider fuel system? When you use a gage and check proper fuel pressure, with the key off will the pressure hold for a bit? If it drops like a rock, you have a fuel pressure leak.
Smell of the crankcase oil dipstick, does it smell like gas? If so, either you don't change your oil and filter very often or you have a fuel leak getting into your crankcase. If the problem is the latter, you fix the problem then change oil and filter as many times as necessary to get rid of the gas.
Check the fuel pressure regulator and vac line.

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Where is the location of the possitive crankcase ventilator

Just go through the Link. If you have not get ur answers, better to post a question on that site.

Thanks Good Luck
Appreciate to rate as "Fixya"

Mar 09, 2009 | 1999 Daewoo Lanos

1 Answer

Fuel in oil, rover 3.9 v8

if your rocker shaft was busted and the valves were not opening, alot of the unburned fuel in those cylinders will end up in the crankcase. the problem is that fuel dries things out and hinders lubrication, the crankshft and camshaft bearing and journals can become damaged. fix your rocker, put fresh oil in, then change it a second time after about an hour of running, use a quality oil additive like MOA or Lucas stabilizer in the second change. low oil pressure can indicate worn crank and cam bearings and or journals.

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