Question about Mitsubishi Montero Sport

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Missfire cylinder 1 - Montero Sport Mitsubishi Cars & Trucks

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Change the spark plug,

Posted on Oct 12, 2008

5 Suggested Answers

dryden3
  • 2 Answers

SOURCE: missfire #1

Might be a sticking valve. If they stick, then they usually do it when the engine is cold. Hook up a vacuum gauge, then start the engine cold: if the needle bounces during the misfire, then suspect an intake valve is sticking.

Posted on May 05, 2009

bunnydawg
  • 5158 Answers

SOURCE: need to know which cylinder is #1?

stand beside the motor. you will see that one cyclinder is further forward then the other. that's number one cyclinder.

Posted on Nov 27, 2009

MrBirdMan64
  • 183 Answers

SOURCE: 2.5 liter cougar has #1

Could be a bad ignition coil.

Posted on Mar 28, 2010

  • 1 Answer

SOURCE: Check engine light flashing runs

This could be a bad cam sensor that hasnt gone yet. It would explain why you are running to lean.

Posted on May 12, 2010

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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I got the flashing service engine soon light and the exact number codes i don't know but their missfire on #1 cylinder and something to do with the #1 injector


Missfire on any cylinder can be caused by a problem with an injector. You could simply replace the injector. You may also want to inspect the wire leading to the injector, sometimes that can rub against stuff and the signal can get grounded instead of opening the injector.

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Move the ignition coil to another cylinder and see if the problem moves. If it does it is the ignition coil replace it otherwise it is probably the fuel injector.

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Cylinder number one stops firing, and black smoke comes out of the exhaust. I replaced the coil pack and spark plugs. when i unplug battery and reset the faults, it drives fine for a couple days. what...


honestly it sounds like you have a bad computer. there is a constant 12 volts going to each fuel injector and the computer momentarily grounds each fuel injector to activate, the black smoke is from too much gasoline and the missfire is probably from the injector either hanging open or being held open electricaly. next time it starts to missfire on number 1 cylinder try taking a stethiscope or long screw driver and put it on #1 fuel injector with the engine running and see if you hear a clicking sound. If not try unplugging the #1 Fuel injector. this won't fix the missfire but you can see if the black smoke clears up. if the smoke doesn't clear up with the injector unplugged and you are sure its # 1 cylinder thats missing, replace #1 fuel injector.

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What does the code "misfire on bank 1 mean" on a diagnostic code for a 2000 lincoln navigator mean?


Do you mean "missfire on cylinder 1", code P0301? If so, that means that the computer has detected incomplete combustion in the #1 cylinder, which would be the front passenger side cylinder. There are many potential causes to a cylinder missfire ranging from worn / bad ignition components, clogged / bad fuel injector or even internal engine damage.

However the most common cause, especially on ford vehicles is a bad ignition coil. When trying to determine the cause of a missfire on an engine such as the one in your Navigator i start with removing the plug and checking for carbon tracing, excessive plug gap or contaminants on the plug. If that checks out ok i then swap the ignition coil from the missfiring cylinder to one that isn't. For example, I would swap the ignition coil from #1 to #2 and clear the codes. Then drive around until the light comes back. If it comes back with a missfire on cylinder #2 then you know the cause is the ignition coil and it has to be replaced. If it doesn't then it is something else causing the missfire which will require a bit more diagnostics.

How many miles are on your Navigator? Have the plugs ever been replaced? If you have close to 100k it would be a good idea to replace all of the plugs. Be careful when removing the plugs, it's not difficult to pull the threads right out of the head when removing the plug.

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2 Answers

Check engine light flashing runs rough not firing on all cylinder2000 lincoln navigator with large triton engine Hooked up diagnnostic and it said 1. system too lean bank #2 2. Unable to bleed up fuel tank...


you may try your rotor button and distributor cap. and spark plug wires. try your map sensor also they tend to cause a lot of misfiring if they go bad.hope this helps.

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1 Answer

Check engine light flashing runs rough not firing on all cylinder


take of the fuel filter and blow it out. i had the same problem with a 2008 ford f150 5.4 v8.

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1 Answer

My 2004 Ford f150, when checked on a computer, says missfire in cylinder 1. We changed the coil, plug, and fuel injector, what can the problem be.


Switch the plug wire with one of the others and if your missfire moves to a new cylinder its a bad wire.

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1 Answer

1998 honda civic cel code 71-74


code 71 means #1 cylinder missfire 72 Means #2 cylinder missfire 73 means #3 cylinder missfire and 74 means #4 cylinder Missfire

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