Difficult starting in the cold runs horrible than fine

A forum for the legendary Nissan Pathfinder and Infiniti QX4.
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slickroger
Posts: 919
Joined: Sun Jan 06, 2008 12:33 pm
Car: 2001 Nissan Pathfinder
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When I start my pathfinder sometime it starts sometimes it doesn't it cranks but has difficulty actually turning over. When I do manage to get it started it shakes and I now recently have been getting code302 cylinder 2 misfire. When I drive it after a rough start the check engine light blinks for a while then sometimes it will go away and other times it will stay solid but when it stays it gives me the 302 code. I have had the fuel pump changed the sparks and coils have been changed this year. Also after letting it warm up the car begins to drive normally without any shaking and also will have no problem starting. The issue seems to be when It sits in the cold so the colder it is the less time I have before another hard start.

Anybody ever experience something like this all help is appreciated I'm stumped and really need this truck to work.


ARKQX33V6
Posts: 705
Joined: Fri Aug 06, 2010 3:35 pm

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Start by charging your battery and verify that the battery is good with a voltage test and hydrometer test. Then check you fuel filter and fuel rail so that it gets fuel. If all OK, next time you start depress the gas peddle 1/3. Then see if it starts.

With mis fires, you must clear and test the coils and plugs. Low battery voltage can also cause this problem.

What shape is your MAF sensor and tour timing should be checked. At the very least.

system_v
Posts: 10
Joined: Mon Dec 20, 2010 12:25 pm
Car: 2001 nissan pathfinder se

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BUMP bc this is the same issue im having and id like to hear as much possible causes.

btw, is your rig a manual trans or auto? Mine is a manual and this issue started just after i had some clutch work done...

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slickroger
Posts: 919
Joined: Sun Jan 06, 2008 12:33 pm
Car: 2001 Nissan Pathfinder
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ARKQX33V6 wrote:Start by charging your battery and verify that the battery is good with a voltage test and hydrometer test. Then check you fuel filter and fuel rail so that it gets fuel. If all OK, next time you start depress the gas peddle 1/3. Then see if it starts.

With mis fires, you must clear and test the coils and plugs. Low battery voltage can also cause this problem.

What shape is your MAF sensor and tour timing should be checked. At the very least.
I have solved my misfire I had a faulty coil on cylinder 2 the shop that replaced my fuel pump must have done something with the coils because I didnt have the misfire before I gave them my truck and I found a ball peen hammer under my hood so I bitched at them and haven't paid them for the pump replacement. Anyway my battery is good and I'm just curious as to y you said to press the gas a third of the way what exactly does that do.

I'll keep you Guys updated with every thing I fix and what not. but I'm waiting for some actual cold weather so I can tell if I'm still having the problem.

My truck is auto and hasn't had any transmission work


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