Chevy/GMC 6.2L and 6.5L Discussion of Chevy and GMC Trucks with 6.2L and 6.5L Diesel Engines

1996 6.5td idle problems

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  #11  
Old 09-22-2013, 07:43 PM
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It was on the heat sink. But right at the plug is where i melted almost like it had a poor connection
 
  #12  
Old 09-23-2013, 12:01 AM
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Was heat transfer paste/pad used between the PMD and heatsink?
 
  #13  
Old 09-23-2013, 02:56 AM
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Idk it was the old one that came on the truck when we got it. Avail it could of been melted the whole time. There is still power getting to 2 of the wires in the plug.
 
  #14  
Old 09-23-2013, 12:59 PM
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  #15  
Old 09-24-2013, 05:14 AM
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Love your *****. No homo
 
  #16  
Old 09-25-2013, 02:02 PM
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ok tested the new pmd all went good till the last step between "B" and "F" supposed to get a ac reading of .8-1.0 we got .2. just for ***** and giggles I put the old melted pmd box in just to see what she was reading. very first rotation of the crank she wanted to fire up. so we got her started and she went back to the surging idle she will go to 900 with a touch of white/gray smoke then up to 2k with black smoke. so we might try to borrow someone's pmd and see what she does then

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OK now I'm confused (don't take much) but before calling about receiving a bad pmd I put the new one back in to try and test the f and b post. Well she started up and idled at 800-900 rpms still smoked a little but it was more gray. Went to see if she will rev up it went to 1k and wouldn't go any higher would start to miss and blow more smoke. Shut it off and restarted it only to have her idle at 400. But on my tester I wasn't getting any reading while cranking (B&F)
 

Last edited by Irish_Alley; 09-25-2013 at 02:02 PM. Reason: Automerged Doublepost
  #17  
Old 09-25-2013, 03:18 PM
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Wonder if your soot trap/cat converter is plugged causing the black smoke?
 
  #18  
Old 09-26-2013, 05:38 AM
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its not black now, more like gray. the black was from the surging idle at the high point (old pmd) the new pmd is now just gray smoke and wont clear up, wondering if some of the injectors arnt spraying like they should? which sucks cause due to the rust i dont think they will come out easy or in one piece

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also i dont think i have a cat didnt see one when replacing starter but i wasnt looking for one but i know theres no egr
 

Last edited by Irish_Alley; 09-26-2013 at 05:38 AM. Reason: Automerged Doublepost
  #19  
Old 09-26-2013, 06:36 AM
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Injectors are quite strong-doubtful that rust would be a factor in getting them out.
 
  #20  
Old 09-26-2013, 05:52 PM
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Think the lines will be the problem
 


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