Tip & How-To about 2009 Nissan Pathfinder

Nissan Pathfinder TI Diesel engine bay rattle (R51)

Noticed a really gnarly rattle coming from my engine bay when idling and at low engine speeds. faded in and out in a way that would suggest something loose directly coupled to the engine - also sounded light and plasticky.

Traced the issue to the rubber vibration isolating sleeve grommets on the the bolts holding the plastic engine cover down (closest to the front bumper).
They were heavily worn on one side - either designed to have some lateral clamping pressure or just worn weirdly over time.

Couldn't find a replacement part but found a rubber cable grommet with a suitable groove OD at supercheap auto (any auto store should have them). Used a die grinder to open the centre out to match the steel sleeve diameter. Fitted with a bit of silicone lube to ease installation.

Rattle at idle totally gone. Worked great. Should have done it ages ago.

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It can be issue with IAC( idle air control valve) causing the problem.


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There are few help links with solutions to troubleshoot such idle issues.

I suggest you refer the link below and follow its troubleshooting details:------

Click the link below:-----

Ford Expedition IAC valve replacing

http://technoanswers.blogspot.com/2012/12/ford-expedition-iac-valve-replacing.html

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

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http://schematicsdiagram.blogspot.in/2012/03/stumbling-and-stalling-at-idle-after.html

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http://technoanswers.blogspot.in/2012/01/1999-ford-f-150-idles-rough-and-quits.html

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http://repairhelpcenter.blogspot.com/2012/01/engine-stumbles-coming-off-idle-when.html

------------------

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http://schematicsdiagram.blogspot.com/2011/12/erratic-idle-on-car.html

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http://repairhelpcenter.blogspot.com/2012/10/cold-start-problem-and-vehicle-shudder.html

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http://repairhelpcenter.blogspot.com/2011/12/low-idle-when-cold-out-side.html

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http://technoanswers.blogspot.com/2012/10/gmc-sonoma-stalls-and-idles-low.html

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http://technoanswers.blogspot.in/2012/02/high-rpm-in-neutral-inconsistant-high.html

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http://schematicsdiagram.blogspot.in/2012/03/vehicle-stumbling-at-idle-and-shows.html

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These details will help.

Thanks.

Feb 15, 2013 | 2003 Pontiac Grand Am

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No power, idling rough


Replace the catalytic converter and EGR valve

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3 Answers

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I had the same problem (X-type 2.0d 2004). The stutter was cured on mine by getting the ECU fashed with the latest firmware. This is a known problem and the update does cure it (£28), I didn't bother with all the tests the garage wanted to.
The noisey engine at idle is the alternator belt. It resonates at idle and causes the noise, There is a modified bottom pulley, tensioner and belt kit, but it is rather expensive ~£200 plus fitting (around 4 hours labour). Mondeo's have the same problem but that kit doesn't fit the Jag.
Hope this helps
KB

Jan 25, 2009 | 2005 Jaguar X-Type

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