Duramax Diesels Forum Truck of the Week
  #1  
Old 09-17-2018, 03:29 PM
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coreyfatboy coreyfatboy is offline
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Default Overheat limp mode temp only 212

Hey everyone my kid has an 06 with bigger injectors and turbo deleted with efi live. Having transmission problems (long story). Have it at the transmission shop and he is trying to do test on it and it keeps saying itís overheating and goes into limp mode. His snap on scanner says the temp is 212-217. Itís not actually overheating. I did take efi live out because we were having communication problems with the tcm and the shop said had to return everything to stock. Any help would be fantastic
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Old 09-17-2018, 03:33 PM
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Take it to a shop that knows what they’re doing. It’s throwing communication codes for a reason.
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Old 09-17-2018, 03:49 PM
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Scott @screamin diesel performance is a reputable trans builder in Port Angeles, Washington.
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Old 09-17-2018, 04:11 PM
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TheBac TheBac is offline
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Isnt this the second time you've tried repairing this truck? Get it to a competent shop that works on modded Duramaxes.
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Old 09-17-2018, 04:33 PM
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1TRIKHD 1TRIKHD is online now
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Like said up above, take it to Scott at SDP
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Old 09-18-2018, 07:25 AM
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We had the communication problems taken care of that’s why it is at transmission shop. He is a transmission mechanic not a diesel mechanic. Never had engine overheating problems. He was taking it for a test drive to check pressures in tranny and got dic on dash saying engine was overheating and it went into limp mode. The temp guage was bouncing all around but actual engine temp was never over 215
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Old 09-18-2018, 08:34 AM
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Chevy1925 Chevy1925 is online now
don't know sh!t about IFS

 
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were the basics checked?
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02 LB7, LLY, LBZ, LMM, LML, L5P 2500HD CC/LB dmax/alli "The Limo"

BIG THANKS TO: Mike L, Steve, Trent, Guy, Dan, Ruben, Josh H, Scott, Brian and everyone else who has put a hand in to help me.

best time to date: 12.39

motor died/bent rods = 3/11/11
back from the dead 7:04pm 4/9/2012

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Old 09-18-2018, 09:10 AM
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I guess that’s what I’m asking. If anyone has had similar problem and where to start
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Old 09-18-2018, 09:28 AM
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Chevy1925 Chevy1925 is online now
don't know sh!t about IFS

 
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check the water level, search on where the coolant temp sensor is (there is only one), search on the finicky gauge clusters.
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Quote:
Originally Posted by JoshH View Post
Mike L is my role model. I want to be like him when I grow up.
James

02 LB7, LLY, LBZ, LMM, LML, L5P 2500HD CC/LB dmax/alli "The Limo"

BIG THANKS TO: Mike L, Steve, Trent, Guy, Dan, Ruben, Josh H, Scott, Brian and everyone else who has put a hand in to help me.

best time to date: 12.39

motor died/bent rods = 3/11/11
back from the dead 7:04pm 4/9/2012

Limo is back in the garage, now driving a built chevy tracker
Tailgate Crew Member #4
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Old 09-18-2018, 09:31 AM
mechman3 mechman3 is offline
no such thing as too fast
 
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I would check for a pinched grounded wire coolant sensor wire. I had this issue after HG replacement. Just a thought
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Last edited by mechman3; 09-18-2018 at 09:32 AM. Reason: to clarify the wire
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  #11  
Old 09-18-2018, 10:47 AM
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torqued2dmax torqued2dmax is offline
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Tell us about the truck, that might help , is transmission upgraded ? have HGs been replaced yet ? who did injectors , turbo, EFI ? is bottom end stock ? the more you put in your sig the more likely someone might chime in , otherwise its like saying over the phone hay doc I dont feel good whats wrong !
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