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

6.5LT No Start, No Glow Plugs

Old Nov 19, 2010 | 10:38 PM
  #21  
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i ave no clue what do let me look thur my books and see if the don't work i will get back to you
 
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Old Nov 19, 2010 | 10:42 PM
  #22  
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thanks for all the help. i really don't want to take it to the dealer or shop cause i know i will get raped.
 
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Old Nov 19, 2010 | 10:47 PM
  #23  
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don't take to dealer they just going guess at it cost you lot money for getting no where
 
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Old Nov 20, 2010 | 02:24 PM
  #24  
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run a relay switch to sol ,to see if its good so u can test it manulywill let u no if sol. is good go from there.
 
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Old Nov 20, 2010 | 06:51 PM
  #25  
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ok, i will wire a switch up tomorrow. and let you guys know what happens
 
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Old Nov 20, 2010 | 11:04 PM
  #26  
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make sure you have power at pin 16 here site tell you pins


OBDII - On-Board Diagnostic's System - Does My Car Have OBD-II? The Connector and Communications.

if you don't have power at pin 16 code reader not going turn on

for thing it going to hard for code reader read codes for glow plugs cause time it get power up glow plugs shut off

---AutoMerged DoublePost---

Should also say the that pin 16 don't come live in till key is on so code ready come live then buy that time glow plug light is off maybe that way you not getting any reading
 

Last edited by Crazy; Nov 20, 2010 at 11:04 PM. Reason: Automerged Doublepost
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Old Nov 21, 2010 | 10:07 AM
  #27  
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ok, so i got an odd twist now. Went to test the relay today, and everythign was working. lights all came on, truck started and i can now scan the computer. It did stall a couple times on me, but it started right back up. SO i must have a bad connection somewhere or what not, i have no clue. who know when i tt will start acting up again.
 
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Old Nov 25, 2010 | 10:41 PM
  #28  
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So that was short lived. it's dead again. do you think it could be a ground issue somewhere? I am going to go over all the ground, and maybe add a few more.
 
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Old Nov 25, 2010 | 11:41 PM
  #29  
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check the + wire from driver side battery to the fuse box buy fire wall i have seen that wire being bad at the stud or loose
 
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Old Nov 26, 2010 | 07:28 AM
  #30  
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ok, i will check that wire. what confuses me is i have power to the whole truck.
 
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