# EGR system fault

**URL:** <https://community.cartalk.com/t/egr-system-fault/19506>\
**Category:** Maintenance/Repairs\
**Created:** [September 12, 2008, 11:39pm UTC](https://community.cartalk.com/t/egr-system-fault/19506 "2008-09-12T23:39:56Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![hamiltonne](https://avatars.discourse-cdn.com/v4/letter/h/bc8723/32.png) [@hamiltonne](https://community.cartalk.com/u/hamiltonne)\
**Post date:** [September 12, 2008, 11:39pm UTC](https://community.cartalk.com/t/egr-system-fault/19506/1 "2008-09-12T23:39:56Z")

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I replaced the EGR unit and camshaft sensor  
  
 because these were the diagnostic problems.  
  
 However, the check engine light came right  
  
 back on. I removed the EGR and squirted cleaner down the hose, which did nothing.  
  
 The new readout: 1)blocked passage 2)failed  
  
 EGR valve 3)EGR solenoid faulty 4)EGR pressure sensor 5)EGR position sensor  
  
 How do I go about checking for these problems?

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**Author:** ![Hershey\_bar](https://avatars.discourse-cdn.com/v4/letter/h/3d9bf3/32.png) [@Hershey\_bar](https://community.cartalk.com/u/Hershey_bar)\
**Post date:** [September 12, 2008, 11:46pm UTC](https://community.cartalk.com/t/egr-system-fault/19506/2 "2008-09-12T23:46:33Z")

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on what a KENWORTH,MACK,PETERBUILT.

or a passenger car,or a FORD with a PFE sensor.?

let me get my crystal ball ooohhhhhhmmmm!

EXPLORER,MOUNTAINEER?

am I close?

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**Author:** ![Joseph\_E\_Meehan](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/joseph_e_meehan/32/21_2.png) [@Joseph\_E\_Meehan](https://community.cartalk.com/u/Joseph_E_Meehan)\
**Post date:** [September 13, 2008, 12:22am UTC](https://community.cartalk.com/t/egr-system-fault/19506/3 "2008-09-13T00:22:51Z")

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My guess is a Citroen CV2

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**Author:** ![oldgold](https://avatars.discourse-cdn.com/v4/letter/o/b2d939/32.png) [@oldgold](https://community.cartalk.com/u/oldgold)\
**Post date:** [September 13, 2008, 1:32am UTC](https://community.cartalk.com/t/egr-system-fault/19506/4 "2008-09-13T01:32:30Z")

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Have the EGR cleaned by a professional shop. I replaced the EGR valve on my 96’ Lumina and the CEL came on again. My mechanic cleaned the system and removed small chunks of carbon. It looked like pencil lead. Once he did that no more problems with the EGR. I can’t speak for the camshaft sensor.