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Hesitation after warmed up

sailone32003

By sailone32003,
in 90-95 WD21 Pathfinders

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sailone32003 NPORA Newbie

sailone32003

Posted
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Hey everyone, happy weekend. Hope you can help with this, my 93 S/E started acting up the other day it runs fine while cold but after it warms up it hesitates when accelerating from a stop but seems to accelerate and run fine after at speed. I ran the codes and I'm getting code 13, Engine coolant temperature sensor. Can that be causing my problem? Thanks

 

 

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JackStraw1 NPORA Veteran

JackStraw1

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Not sure if the coolant sensor can cause that problem but it seems possible since the ECU reads the coolant temp and makes adjustments accordingly. Coolant sensor is a cheap and easy repair. If that doesn't do it I would then look at cleaning MAF sensor next and also check fuel filter if it has not been changed recently.

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FriedEGs NPORA Regular

FriedEGs

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Bad temp sensor can certainly cause misfire issues. The ECU 'thinks' the engine is either cold or hot because of that sensor and is making adjustments. A buddy of mine had that issue on a Ford and replacing that temp sensor fixed the issue.

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ebayfish NPORA Fulltime Resident

ebayfish

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Probably the coolant sensor as stated, bu also check 02 sensor, had similar issues. I unplugged mine & it ran better(plug on passenger wheel well). Kept it like that until I got my new one.

 

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