|04.5-05 LLY Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect|
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|02-05-2010, 04:48 AM||eBay Motors #1 (permalink)|
Join Date: Jan 2010
LLY or LB7 + EGT reading at idle
How do I know if I have an LLY or LB7? My truck is an 04 2500HD silverado and i'm not sure which engine I have.
Second question is What are "normal" EGT readings for "normal" driving?
Third, What should the EGT be at idle?
Forth, is the EGT supposed to rise and fall with the amount of throttle being applied just like A/F does on gasoline engines?
Sorry for all the questions but I just want to make sure that my EGT readings are correct and normal. I know NOTHING about diesels.
|02-05-2010, 06:08 AM||eBay Motors #2 (permalink)|
Join Date: Sep 2008
Location: Beer Tent Capital of the World
2003 Chevy 2500hd crew cab 4x4, D/A
Just a few aftermarket goodies
|02-05-2010, 07:11 AM||eBay Motors #3 (permalink)|
Join Date: Nov 2008
Location: Tiverton RI
Idling I can see as low as 190* and the reading at speed will depend on the tune or tuner you are using. Mine will see 1800* on the throttle heavy!!!!!
2001 Chevy ECSB
SCIV 1056 MBRP 4" Kennedy lift pumps EFI live by Jeff Toman. Industrial Injection Silver Bullet 66.
12.65 @ 105 stock charger
494/956 stock charger
523/1084 something is wrong.
|02-05-2010, 11:57 AM||eBay Motors #4 (permalink)|
Join Date: Jan 2010
awsome! Thanks guys.. Yeah, I think i have a faulty egt probe. When I sit at idle the egt rises to about 1300 just sitting there but when I drive around it rises and falls like I would assume is normal. But either way 1300 at idle isn't a good thing lol
|02-08-2010, 05:46 AM||eBay Motors #6 (permalink)|
Join Date: Sep 2007
1300 at idle is a bad reading.
Generally, more power requires higher EGT. Thermo diesel cycle reference, it is a heat engine.