Question about 2004 Nissan Maxima
Pull the Diagnostic Trouble Code(s), if any, from the on-board computer and let that be your guide on where to begin. If you aren't familiar with that process, go to Autozone, where they will pull the code(s) for you for free. Other parts houses may do it for free or a nominal fee. The code will provide your starting point. Your diagnosis to date appears doubtful as the true cause of your issues.
Posted on Aug 17, 2010
Look for a leak in the hoses between the PCV valve in the crankcase and the intake on the motor. A vacuum leak of this type can cause a jerkiness (runs rough) and will make the transmission seem to be malfunctioning because the motor is trying to correct for incorrect air-fuel ratio. Check to see if there are soft squishy or very oily spots on those hoses (would indicate a hole at that position).
Posted on Aug 10, 2010
The crank sensor is for engine cylinder recognition or position.
Go back to your studying
You never replace any part or sensor based on a code or a guess.
You need to be familar with the system your working on, and test first,then replace, if you have the knowledge to do so.
You need to separate Trans Issues from Drivability Issues.
Posted on Jul 31, 2010
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Posted on Jan 02, 2017
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