Question about 1998 Nissan Altima

1 Answer

Cylinder 4 misfire: lacks compression

My car had two problems - not power going uphill (get up to 4 rpm before shifting etc) and it has a rough idle that shakes in drive but not going yet. Solved the power issue with a new used trans- was told that there were no middle gears. Still has the idle issue. Have an OBD II reader that gives 2 codes the Knock Sensor(replaced before in last 2-3 years) and a cylinder 4 misfire. Was told for misfire that cylinder 4 has hardly any compression. Did a basic tune up myself replaced plugs and wires. Didn't help. That was when I took it to a mechanic to be told that it lacks compression in that cylinder. Any ideas why? I did not have them take apart the engine yet because that is a huge job and I can't do that yet so I'm looking to some forums now....please help?

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  • mcpanne Oct 19, 2008

    My 2000 has similar. I have the same codes and was going to just replace the knock sensor but this info leads me to taking it IN for eval. When you changed plugs, did you notice there was any oil or oil stains at base of ceramic? I did. Thanks.

  • rachellefuen Feb 19, 2009

    i also have a 1999 nissan altima i toke it to the dealer to have the diagnostic done it read i have a 4 cylinder misfire they did the compression test and it was very low the mechanic said im looking at around 1100 dollars to get this problem solved... any feedback on the price range?

  • Anonymous Mar 13, 2014

    numer 4 cylinder misfiring, what happens if I drive it for a few days before fixing?

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  • Nissan Master
  • 329 Answers

The things that would cause lack of compression are:

  • bad headgasket
  • damaged piston rings
  • valves not sealing- could be exessive carbon build up, bad valve spring, bent valve

Posted on Oct 15, 2008

  • Tim Shinn
    Tim Shinn Aug 02, 2015

    actually i just had this problem on my caravan and it was actually a broken valve spring on cylinder number four. I got a set of heads from machine shop pros in California for 320 bucks and ordered the gaskets and new head bolts from ebay for 40 bucks and now the van runs great. most likely you have a broken valve spring which it will idle rough but it will clear out as you get upto speed

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It can be issue with spark plugs or faulty spark plugs. Also get the compression test done for cylinders. If any of cylinder shows low compression then required, then that particular cylinder will cause misfire.

Also get obd codes scanned, the error code will let you know which cylinder is misfiring or all cylinders are misfiring.

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For your trouble shooting I suggest you to refer the help oinks below. It has step by step details for many engine misfire issues.

----------


Click the link below:-----


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http://whoisbyme.blogspot.in/2012/06/ford-explorer-cylinder-misfire.html

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http://schematicsdiagram.blogspot.com/2011/12/engine-misfire-codes-on-chevrolet.html

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http://howtobyme.blogspot.com/2011/12/cylinder-6-misfire.html

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http://schematicsdiagram.blogspot.com/2011/12/misfire-on-cylinder-4.html

-----

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http://technoanswers.blogspot.in/2012/02/oil-on-spark-plugs-and-car-misfires.html

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http://schematicsdiagram.blogspot.in/2012/02/can-cylinder-misfire-damage-catalytic.html

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http://technoanswers.blogspot.com/2012/01/car-misfires-and-error-code-p0306-and.html

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This will help.

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http://technoanswers.blogspot.com/2012/01/bad-miss-at-idle.html

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http://technoanswers.blogspot.com/2012/01/bad-miss-at-idle.html

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ACTION
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So

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2003 cadillac cts 3.2 liter..rough idle, scan tool shows misfire on bank 1, cylinders 1,3,&5. only at idle, scan tool also showed a cam postion sensor code. cam position sensor changed. no change in...


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