Question about 2005 Lincoln Aviator

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Engine knocking Engine knocks when pressing on gas

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If this has an emblem showing DOHC then the problem is likely a Cam Phaser. You can look up info on the Web by browsing 2005 Lincoln Aviator Cam Phasers. The Ford engines also use this design.

The problem is that the Phaser automatically sets timing. Your engine is probably over advanced and each side can have different timing settings. Sometimes they sound like diesel engines.

When you read more about these engines you can at least be informed and ask a few questions at repair shops.

Now you might want to have the fuel checked out. Cheap gas will make knocking sounds. There are a few products like 104 Octane boost which may help. But if someone used E85, drain the tank. The fuel is too corrosive for your car.

Posted on Mar 25, 2014

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3 Answers

How do I bypass a knock sensor on a 2000 Nissan frontier


The pcm uses the knock sensor to monitor for engine knocking, and adjusts ignition timing based on this. If there is no knock sensor present, you will wind up with a hard fault that will keep the check engine lamp on continuously. Also, the truck will go into a more conservative driving mode to prevent knocking.
The knock sensor for a frontier is not terribly expensive, but it is a pain to access on nissan v6s, under the intake manifold

Oct 12, 2014 | 2000 Nissan Frontier

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My car knocks 3 times after shut down. There is about a 2 sec delay between each knock. It is important to note that the engine is completely off at this time. exact description of issue: Ignition...


try to use 93 octane gas. most likely water is in the gas that you are using and it can cause your car to knock, which is also known as bad gas. try getting your gas from a different source and use 93 octane gas.

Aug 25, 2013 | Cars & Trucks

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I have a 1999 mercury villager and when i press the gas pedal it starts knocking real loud


That maybe a spark knock try filling your fuel tank with 92 octane gas and see if the knock quits.

Oct 17, 2012 | Mercury Villager Cars & Trucks

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The rpm's will rev up then die thought it was just bad gas


thats not good to here if its knocking sorry to say but your engine is no good and when u put it in gear it is asking for more commpresion and power but engine cant give so just shuts off..depending on how the knock sounds .. did it overheat or did u run low on oil ?? fill me in a lil

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2000 silverado knock sensor issue


I think it not real probable that the cause of your knock sensor code is the result of bad gas. However, I suppose it IS possible. Most knock sensor codes are caused by engine mechanical problems like bad pully bearings, loose timing chains, broken valve springs, collapsed valve lifters, etc. that would cause a "knocking" or "tapping" in the engine.

The next most probable cause would be damaged knock sensor wiring. I have fixed many that have had damage from rodents getting into the engine compartment and chewing on the wires. Depending on which engine your Silverado is equipped with, the knock sensor could be mounted between the cylinder heads in the valley under the intake manifold. Mice like it under there.

Then again, it all depends on WHAT KIND of knock sensor code you are getting. For 2000 Silverado there are 3 possible knock sensor codes: P0325, P0327, P0332. The diagnostics (and possible causes) change depending on which code you have.

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I just want to know if its okay to use regular unleaded gas in my 2004 Pontiac Grand Prix GT, vin# is 2G2WP522241115621


Usually its fine to use regular unleaded gasoline in most cars anymore, but to be safe i would look in your owners manual and see what the manufacturer specifies, most cars now have whats called a knock sensor on the engine with regular gas the knock sensor detects engine knock from lower octane gases and tells the computer how to adjust ignition timing until engine knock disappears, being all cars have a knock sensor on them it usually is safe to use regular gas unless a turbo or supercharger is being used on the engine this application usually requires a higher octane gas to run the engine smoothly but as for your appilcation there should be no reason you cannot use regular gasoline, the computer will adjust your ignition timing as need to maintain good engine performance through the knock sensor.

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My Toyota Vitz has a problem of engine knocking even when the engine is cold. the knocking reduces if i press hard on the gas, other wise it knocks while shifting and initial pick up as well.


Knocking can be caused by a bad bearing somewhere in the engine. When the engine is accelerated it might go away due to higher oil pressure.

When did you have the oil changed and how many miles does it have?

Is the knocking rapid (5 or 6 times a second) or periodic (1 or 2 times a second)?

Some knocking is due to low octane gasoline if you experience it at highway speed.

Good luck on solving this knocking problem.

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Knocking sound as soon as the engine is cranked


SOUND LIKE PISTON RODS.LOW OIL LEVEL OR FAULTY OIL PUMP.DUE TO LACK OF OIL TO ROD BEARING CAUSING BEARINGS FAILURE.YOU WILL GET ROD KNOCK MEANING ENGINE DAMAGE.

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clean your air filter and try it .... normally on CNG at low Rpms it has unstable running



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Making a knocking noise


This is most likely either a piston noise or a connecting rod bearing knock

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