Question about Nissan Pathfinder

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Ive a 2005 2.2dci x-trail and its hard to start, when it does it idles fluctuates between 850rpm-1500rpm its ok when driving but when i slow to speeds of under 30mph it conks out, so i have to bump start it to go again?? diagnostics telling me there is no fault the engine manage light does come on and tells me air temp sensors i removed sensor an no diff and removed air filter which was covered in oil and removed intercooler as it is cracked all this makes no diff to idle its still up and down??? ps it wood not accept xtrail in the below category but il assume the pathfinder wood have same engine??

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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SOURCE: Rough idle, no power, steamy exhaust

The answer was the plug top coils. The plugs and coils were replaced and the car is fine. The steam was not steam - it was white smoke from the catalytic converters.No mayo in the oil and no coolant level drop should have eliminated the head gasket. The steam turned out to be a red herring.

Posted on Nov 19, 2008

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  • 321 Answers

SOURCE: 99 olds alero 2.4

I'm sure you have installed a fuel pressure gauge and monitored the fuel pressure while the problem is occurring?Another diagnostic tool which is easy to do,is while the problem is occurring,unplug one sensor at a time beginning with the Mass Air Flow first,.if it uses one.Many times,not always,depending on the sensor,if the sensor is taken out of the picture as far as what the PCM is seeing,like unplugging the MAF,the PCM will substitute the missing sensor output with a generic value that will allow the engine to at least run,and if unplugging for example the MAF,the engine idle speed returns to normal,you know you're onto the problem.You didn't mention if the engine ran ok other than the idle problem.As far as checking for vacuum leaks,i use something like brake cleaner or WD 40,more of a liquid,and it does sound like a vacuum leak.Plastic intake manifolds do develop nearly invisible cracks that open up more with heat.Revsisit the possibility.And as for the PCM,it is possible,but more likely a mechanical problem.Lastly,remove an O2 sensor or two before the catalytic convertor,run the engine and see if anything changes.Cheap way to verify the catalytic convertor is flowing and not restricting engine airflow,as i have seen bad cats cause misfire codes and strange problems.Good luck.

Posted on Dec 04, 2008

  • 54 Answers

SOURCE: Check engine light is on and high idle (1500rpm)

Check for a vacuum leak.

Posted on Feb 03, 2009

  • 41 Answers

SOURCE: Nissan Xtrail 2001 model with Turbo. The AC

This may be because your cooling pump is either cam or belt driven from the engine rotation, the faster the engine revs at, the faster and better the pump pressure is.

The higher the pump speed the better coolant flow is and the heat exchanger can work better at cooling it as it is cooled faster.

Therefor, the faster you drive, the better the output, but at low idle revs, the performance is affected - not ideal if you are sat in traffic on a hot day!

Some people consider having the pump changed to an electric motor drive, but this can be costly and not really worth it.

Hope this helps.

Posted on Mar 30, 2009

emissionwiz
  • 76132 Answers

SOURCE: e xtrail will not go past 3000 revs

have you tested the fuel pressure? sounds like a poss plugged/restricted fuel filter

Posted on May 20, 2009

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