if your having engine problems read this

Discussion in 'The Garage' started by aceman484, Jun 30, 2007.

  1. aceman484

    aceman484 Member

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    well i was browsing through the internet tonight and found a very help full site......what it had on it taught me pretty much everythang from how an engine works to fixingin them...so i thought that if your havin any trouble with your cars engine.....hell read this...

    So you go out one morning and your engine will turn over but it won't start... What could be wrong? Now that you know how an engine works, you can understand the basic things that can keep an engine from running. Three fundamental things can happen: a bad fuel mix, lack of compression or lack of spark. Beyond that, thousands of minor things can create problems, but these are the "big three." Based on the simple engine we have been discussing, here is a quick rundown on how these problems affect your engine:
    Bad fuel mix - A bad fuel mix can occur in several ways:

    You are out of gas, so the engine is getting air but no fuel.
    The air intake might be clogged, so there is fuel but not enough air.
    The fuel system might be supplying too much or too little fuel to the mix, meaning that combustion does not occur properly.
    There might be an impurity in the fuel (like water in your gas tank) that makes the fuel not burn.
    Lack of compression - If the charge of air and fuel cannot be compressed properly, the combustion process will not work like it should. Lack of compression might occur for these reasons:
    Your piston rings are worn (allowing air/fuel to leak past the piston during compression).
    The intake or exhaust valves are not sealing properly, again allowing a leak during compression.
    There is a hole in the cylinder.
    The most common "hole" in a cylinder occurs where the top of the cylinder (holding the valves and spark plug and also known as the cylinder head) attaches to the cylinder itself. Generally, the cylinder and the cylinder head bolt together with a thin gasket pressed between them to ensure a good seal. If the gasket breaks down, small holes develop between the cylinder and the cylinder head, and these holes cause leaks.
    Lack of spark - The spark might be nonexistent or weak for a number of reasons:

    If your spark plug or the wire leading to it is worn out, the spark will be weak.
    If the wire is cut or missing, or if the system that sends a spark down the wire is not working properly, there will be no spark.
    If the spark occurs either too early or too late in the cycle (i.e. if the ignition timing is off), the fuel will not ignite at the right time, and this can cause all sorts of problems.
    Many other things can go wrong. For example:
    If the battery is dead, you cannot turn over the engine to start it.
    If the bearings that allow the crankshaft to turn freely are worn out, the crankshaft cannot turn so the engine cannot run.
    If the valves do not open and close at the right time or at all, air cannot get in and exhaust cannot get out, so the engine cannot run.
    If someone sticks a potato up your tailpipe, exhaust cannot exit the cylinder so the engine will not run.
    If you run out of oil, the piston cannot move up and down freely in the cylinder, and the engine will seize.
    In a properly running engine, all of these factors are within tolerance.
    As you can see, an engine has a number of systems that help it do its job of converting fuel into motion. We'll look at the different subsystems used in engines in the next few sections.
     
  2. 19mustang95

    19mustang95 Legend

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    seriously?
     
  3. ripper

    ripper Well-Known Member

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    ???
     
  4. uncltrvlnmatt

    uncltrvlnmatt Legend

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    I can't believe I was actually sat here and read this. It was as much a waste of my time as watching the Loose Change 9/11 consiracy movie.
     
  5. slow-six

    slow-six Member

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    yep, that just about covers every thing. :eek:uttahere:
     
  6. scarface

    scarface Guest

    welcome back Alex ::)
     
  7. MeanGrn Gt

    MeanGrn Gt Well-Known Member

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    damnit
     
  8. ripper

    ripper Well-Known Member

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    :rollinglaugh: :rollinglaugh: :rollinglaugh: :rollinglaugh: :rollinglaugh: :rollinglaugh:
     
  9. DropTopPony

    DropTopPony Administrator Staff Member Admin SN95 Supporter

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    :-X
     
  10. Red96GT

    Red96GT Legend

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    If the battery is dead, you cannot turn over the engine to start it.
     
  11. ripper

    ripper Well-Known Member

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    Are your sure?
     
  12. MeanGrn Gt

    MeanGrn Gt Well-Known Member

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    how about a little drivetrain help...

    if you press the gas and the motor revs and you do not move put it in d (if you have an auto), or put it in 1st and make sure to let off the clutch if you have a manual.
     
  13. 94Vert

    94Vert Active Member

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    this was the best one

    "If someone sticks a potato up your tailpipe, exhaust cannot exit the cylinder so the engine will not run."
     
  14. 9psi 98

    9psi 98 Active Member

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    You may also have the wrong ignition key, so the car won't start regardless... Seriously, I want the 3 minutes of my life back that it took to read this.
     
  15. ripper

    ripper Well-Known Member

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    Gone forever 9psi. Hmmm Mythbusters busted that potatoe in the tailpipe thing. Your car will start right up. Just dont be standing behind it when it does. LOL

    Welcome back Alex. Have you seen Gregs new fox yet?
     
  16. realitygt

    realitygt Legend

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    well now i've narrowed it down to one of those 200 problems
     
  17. ripper

    ripper Well-Known Member

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    Id check yer tailpipe first its a common problem ::)
     
  18. DropTopPony

    DropTopPony Administrator Staff Member Admin SN95 Supporter

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    I always thought they were the same person :dunno:
     
  19. ripper

    ripper Well-Known Member

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    :rollinglaugh: :rollinglaugh: :rollinglaugh: Your gonna get that kid smacked watchit.
     
  20. Red96GT

    Red96GT Legend

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    Lol, they are cousins or something.