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Check Engine light

Old Feb 27, 2004 | 09:05 PM
  #1  
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christaylor
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From: Forest Hill MD
Check Engine light

Pulled the codes on my 95 Explorer and got code 33. Which the book tells me is "EGR valve fault / not closing properly / TPS fault (Diesel)

I have replaced the EGR valve and sprayed throttle body cleaner into the tubes. The light came back on after the engine was warmed up. After a short trip then restart the light stays off.on short trip back home. I have already unhooked the battery for about a 1/2 hour to reset the computer. What am I Missing??? i have not had a chance to re pull the code but this is the second time I have pulled the EGR valve to check and gotten the code again.

Any help appreciated

Chris
I am going to post this in the 4.0 forun also
 
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Old Feb 28, 2004 | 09:36 AM
  #2  
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christaylor
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From: Forest Hill MD
Nobody?
 
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Old Feb 28, 2004 | 02:52 PM
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87 XLT
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From: SoCal
Pull the code again & post it here. It's probably a problem with EGR control not the EGR itself.
 
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Old Feb 28, 2004 | 02:57 PM
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Check the EGR flow. Activate EGR with engine running and note it's response. Does it stall? If not, port plugged, Good luck and let us know.
 
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Old Feb 28, 2004 | 10:46 PM
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christaylor
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Ok how do I activate the EGR. Unplug the vacume line? Or loosen the large nut into the valve? thanks

Chris
 
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Old Feb 29, 2004 | 08:00 AM
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Unplug vacuum line and apply vacuum to the nipple of the EGR. The hose at the ERG does not have vacuum to it, unless the cumputer calls for it. Does this help? Let us know.
 
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