When did GM replace the LB7 engine with Duramax LLY?
When did GM replace the LB7 engine with Duramax LLY?
In 2004, GM replaced the 6.6L Duramax LB7 with the Duramax LLY to comply with emissions standards. The tuners in this review will only cover 6.6L Duramax LB7 engines found in:
What to do about a Duramax 6.6 LB7 engine?
If you are having a problem with your 2001-2004 Duramax 6.6 LB7 diesel engine, please feel free to give us a call. We carry a full line of repair and performance parts for these engines that we install in our shop on a regular basis. Odds are we have run across your problem before and would be glad to help. Call us at 1-877-367-9351.
What kind of tuner do I need for a Duramax LB7?
We’ve broken down the best tuners for the LB7 Duramax engine to help you get more power out of your truck. The tuner gives you feedback on how a tune affects your engine. A DSP5 Key Lock Switch keeps others who drive your truck from adjusting your tunes. What Years Fall Under 6.6L Duramax LB7?
When did GM change the Duramax engine to aluminum?
The change from cast-iron to aluminum didn’t affect the engine’s performance. Aluminum heads are now used in several other engines because they are lighter and just as durable. In 2004, GM replaced the 6.6L Duramax LB7 with the Duramax LLY to comply with emissions standards.
What kind of transmission does the Duramax LB7 have?
The LB7 was available mated to the Allison 1000 five speed automatic transmission or the ZF 6 speed manual transmission, with the automatic being a much more common choice. The LB7 was produced through the 2004 model year, when the LLY was introduced in its place.
If you are having a problem with your 2001-2004 Duramax 6.6 LB7 diesel engine, please feel free to give us a call. We carry a full line of repair and performance parts for these engines that we install in our shop on a regular basis. Odds are we have run across your problem before and would be glad to help. Call us at 1-877-367-9351.
Are there any problems with the LB7 truck?
Over the years these trucks have been really good performers, but they do have some common problems that we see over and over again. Injectors – It’s hard to have a conversation with any LB7 owner without the topic of injector issues coming up.
When did I upgrade the exhaust system on my Duramax?
The good news is that for those looking to upgrade the ENTIRE exhaust system, there are numerous options to upgrade the turbo direct pipe depending on the engine code of your Duramax. Now that we’ve gotten that out of the way, lets get back to business. As previously stated, the first model year of Duramax was 2001 with the LB7 engine code.
