2004 JEEP CHEROKEE CHECK ENGINE LIGHT

  • Tiny
  • giggdagreat
  • 2004 Jeep Cherokee

Engine problem
2004 Jeep Cherokee 6 cyl Two Wheel Drive Automatic 46746 miles

hello my name is Donald whitley i'm the owner of a 2004 jeep grand cherokeemy check engine light came on and popped backed off so I had the codes pulled and it read p03040 what does this mean

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Monday, January 7th, 2008 AT 8:16 PM

3 Replies

  • Tiny
  • BMRFIXIT
  • Expert
  • 19,553 posts

Hello Donald
are you sure of the code
may be its p0304
which is the truck may need a tune up
or check # 4 cylinder for misfiring
good luck
let me know

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Monday, January 7th, 2008 AT 8:49 PM
  • Tiny
  • giggdagreat
  • Member

Dear mr. Ken you were right the codes were p0340 I googled it and it showed a camshaft position sensor could you tell me more about this

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Monday, January 7th, 2008 AT 9:52 PM
  • Tiny
  • BMRFIXIT
  • Expert
  • 19,553 posts

When cranking PCM look for signals from the sensors to identify where is each cylinder and to fire
so if a signal is missing or interrupted check engine light will come on to let the driver know that there is a problem
in your case the cam sensor is the trouble area
I would start by checking it and its plug and wire
(replace cam sensor )

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Tuesday, January 8th, 2008 AT 1:06 PM

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