How much HP can an LLY make?
Despite the added emissions, the LLY was very powerful and capable for the time producing 310 horsepower and 605 lb/ft of torque.
How many miles will a LLY Duramax engine last?
If you want to know how long a Duramax engine will run, you should expect it to last as much as 300,000 miles before needing any major repairs. But, of course, this number can vary depending on how well the engine was maintained and driven throughout its life.
What problems do LLY Duramaxs have?
Certain LLY Duramax models have some common problems like turbocharger problems, oil filter problems, and glow plug control module issues. LLY Duramax engines are also known to blow head gaskets for certain models of the LLY Duramax engine.
Does the LLY Duramax have injector Problems?
As LLY Duramax trucks on the road are only getting older, more and more are being found to have injector harness chafing. Vibrations, heat, and just general wear and tear cause the injector harness to rub against other vehicle components until the wiring gets exposed.
Is LLY better than LBZ?
Although they use similar Duramax parts, the LBZ differs slightly due to its superior 360 hp as against LLY’s 310 hp. GM made the LBZ superior by adding more webbing in its main bearing regions, improved injector and fuel rails, larger turbo inlet, etc. So, technically, the LBZ is better than the LLY engine.
How much can a stock LLY handle?
Without engine work, the stock LLY can put out ~500rwhp.
What is high miles for a LLY Duramax?
However, as with the Duramax and Cummins engines, between 350,000 and 500,000 miles is usually considered high mileage for a Powerstroke engine. Maintenance of the truck and the engine is the key to getting the most miles.
How can I get better gas mileage in my LLY Duramax?
General Tips for Better MPG
- Don’t let your truck idle for long periods of time if you can help it. Idling burns a lot of fuel and your gas mileage will take a hit.
- Don’t be heavy on the gas.
- Watch your tire pressure.
- Service and maintain your Duramax truck regularly.
Why do LLY head gaskets fail?
The head gasket issue with the LLY is mainly linked to overheating engines and owners running hot tunes with too much boost. Kinda like the problem the LBZ’s have with cracking pistons running hot tunes. The LBZ mouthpiece and EGR blocker are not true fixes for chronic over heaters, the aux radiator is.
What is the most sought after Duramax?
Perhaps the most desired of all Duramax models are the ’06-’07 Classic body style trucks.
How much horsepower can a stock LLY Duramax handle?
This type of build is typically safe for the 650 to 700-rwhp range, which is as far as a lot of enthusiasts want to go anyway (financially speaking).
How do I make my LLY Duramax turbo louder?
MORE TURBO WHISTLE on a Duramax (Easy Mods) – YouTube
How much boost does a stock LLY make?
According to GM, max boost for a stock LLY Garrett Turbo is 20 psi.
How many miles is an Allison Transmission good for?
These trucks can (and do) regularly hit 200,000 miles. The truck and drivetrain will only last as long as you maintain it, though. There are parts that fail, just like anything else. But regular maintenance (fluid changes, body upkeep, hard part care) will help you have a very long relationship with your truck.
Which diesel engine lasts longest?
The longest-lasting diesel engine is the 5.9L Cummins 12-Valve 6BT. The engine possesses million-mile durability, with an outstanding 30 horsepower for fast acceleration. It also features up to 440ft-lbs of torque and a high-performance P7100 injection pump.
How long can a Duramax idle?
Any LB7 truck can be ran at idle with no problem. GM says the lly and up trucks with an egr cooler and valve can only be idled for 10 minutes MAX is what gm technical assistance tells us.
Which Duramax gets the best MPG?
#1 – Chevrolet Silverado 2500HD
| Year | Average Miles Per Gallon |
|---|---|
| 2014 | 14.3 MPG |
| 2016 | 14.3 MPG |
| 2018 | 13.8 MPG |
| 2020 | 13.1 MPG |
How do I know if my LLY has a blown head gasket?
Bad head gasket symptoms
- White smoke coming from the tailpipe.
- BUBBLING IN THE RADIATOR AND COOLANT RESERVOIR.
- unexplained coolant loss with no leaks.
- Milky white coloration in the oil.
- Engine overheating.
How do I know if my LLY head gasket is bad?
A simple test is to put the engine under a good load at operating temperature, then shut it down and let the engine cool off for 8 hours or more. If the upper rad hose is still firm and opening the coolant reservoir cap releases air and pressure, the head gaskets have almost certainly failed.
What is the best year Duramax ever made?
LBZ: 2006 – 2007
It has the best potential for performance and horsepower additions through various Duramax parts mods and tuning. Built stronger and more durable than previous engines, the LBZ is reliable and powerful.
What makes a Duramax sound like a jet?
Registered. The turbo vanes are “sweeping”. They change position sometimes at idle, making the “jet” noise.
How do I make my Duramax whistle louder?
How much power can a stock LLY handle?
How much boost can an LLY handle?
What mpg does a 6.6 Duramax get?
This Duramax 6.6-liter V-8 gets 17 to 19 mpg on the highway.