How to disable Active Fuel Management on GM LS?

There are two ways to disable or delete Active Fuel Management on your GM or Chevy Gen IV LS or LS-based Vortec engine—one is to install an AFM Disabler, and the second is to install an AFM Delete Kit. Here’s what you need to know: 1.

How to permanently disable and remove GM security systems?

GM Security Systems are killing cars all over North America and the only final solution is to disable and remove them permanently. This is what NEWROCKIES Inc is all about.

What do you need to know about recycling pump down?

The “Recycling Pump Down” is designed for the inevitable that we all experience daily, flaws upon flaws from system to system. One recommendation I would make, is to employ an adjustable low-pressure switch, this way you are in control and can make adjustments to the pump down cut-in and cut-out as necessary.

Where is the AFM deflector located on a GM Truck?

This valve is located on the oil pan rail and prevents excessive oil pressure from negatively impacting the AFM components. The original version sprayed oil on the cylinder walls and increased oil consumption. In 2010, GM added a deflector (p/n) NAL-12639759to redirect in into the pan.

Is it too much to delete the smog pump?

Re: Deleting the smog pump. How much is too much?!?! i’d be careful about all this; i don’t think mpg is generally going to go down either by removing any of this stuff—-after all the a.i.r. pump pumps into the exhaust, not the intake. But tests from other gm engineers prove that it does effect power rather drastically (will also post link asap).

Where is the oil deflector valve on a GMC ACM?

How do you remove a power steering pump?

To remove one, lift the button with a trim tool or screwdriver which extracts the inner shaft from the hollow shaft. This reduces the diameter of the larger hollow shaft and allows the two-piece assembly to pull out of the hole. Don’t try to pry the large flange without first lifting the button or you will damage the fastener. 3.

How to take the a / C Belt off a LS3?

To get the A/C belt off, with the car in neutral (remember this is an LS3 install), crank the engine over counter-clockwise with a 24mm socket on the crank bolt while at the same time using a smooth ratchet handle or something similar to apply pressure against the engine side of the upper belt and walking it off the A/C compressor pulley.

How to install a LS3 camshaft in a car?

Now the real fun begins, grab your 24mm 1/2″ socket, a short socket extension, your 1/2″ breaker bar, and whatever pipe you have to slip over the breaker bar for some leverage. Put the car in 4th gear and make sure the E-brake is on good.

Can you replace lifters in a Chevy V-8?

Replacing a set of lifters in an engine like the classic Chevy V-8 is one of those automotive rites of passage that every mechanic has to go through at least once. Lifter replacement isn’t particularly difficult from a technical perspective — but it does require unbolting large chunks of your engine…

How do you remove a LS engine from a car?

Use a socket to loosen them — the bolts are nested so they won’t come out of the connectors. To remove the connectors, touch the vehicle to ground yourself, then carefully work the connectors out of the PCM. To remove the PCM, slide it out of its holder and carefully work it past the lower portion of the windshield and passenger-side shock tower.

What’s the first step in disassembling a Chevy?

The first step is to suspend the chassis and let the rear extend freely under the car. Use the properly rated floor jack to jack up the car and place the correct jackstands under the frame rails. Remove the lug nuts and take off the rear wheels. The shocks are fully extended and can be unbolted.

When did the Chevrolet small block LS come out?

Chevrolet considers the LS to be simply an extension – a new branch of the original small-block V8 tree. To this end, Chevrolet announced that sometime during 2011, the 100 millionth small-block trundled down the assembly line.

What does Active Fuel Management ( AFM ) do?

Active Fuel Management (AFM), otherwise known as Cylinder Deactivation is a General Motors engine technology that shuts down half of the engine’s cylinders in light driving conditions to improve fuel economy.

What kind of fuel management does a corvette use?

AFM/DFM Usage Model 4 Cylinder Deactivation Notes CTS-V 6.2L LT4 Yes Always active Camaro 6.2L LT1 Yes Automatic only. AFM not active with manu Camaro 6.2L LT4 No Has the hardware, not active Corvette 6.2L LT1, LT4 Yes Auto trans active, manual trans active i

How does Active Fuel Management affect fuel efficiency?

This reduces engine efficiency, which means less than optimal fuel economy. Active Fuel Management saves fuel by using only half of the engine’s cylinders during some driving situations – such as highway cruising — and then seamlessly reactivates the other cylinders when a driver demands more power for acceleration, climbing a grade or hauling.

How does Active Fuel Management ( AFM ) system work?

The Active Fuel Management (AFM) system is also known as “cylinder deactivation.”. This technology allows the engine to disable half of the engine’s cylinders at lower RPMs, reducing fuel use. AFM usually kicks in under light-load conditions, and it’s been shown to improve fuel economy by up to 7.5%.

When did GMCs envoy start using Active Fuel Management?

I’ve read at many websites that the GMCs envoys, Chevys and saabs did start to come with AFM in 2005 with the LH6 motor,It says here it started in 2006 on the saabs, then the pick-ups got AFM in 2007.

Why do I need to disable fuel management on my car?

The force exerted by the valve spring is acting on the side of the lifter locking pins, preventing them from moving until the intake valve has closed.

How does Active Fuel Management ( AFM ) work?

GM’s Active Fuel Management (AFM) works under certain light load driving conditions to maximize fuel economy by deactivating 4 of the engines 8 cylinders. The engine will operate on 8 cylinders in V8 mode during starting, idling, and medium or heavy throttle conditions.

How to disable Active Fuel Management on GM engine?

Should you delete Active Fuel Management on GM engine? There are two ways to disable active fuel management on a GM vehicle, but first you have to determine whether your engine is a candidate for the delete or disable procedure.

Can a Chevy Silverado 8L have Active Fuel Management?

8L model [&does&] not [&have&] [&active&] [&fuel&] [&management&]. For the old timers out there, it is the same issue as the Cadillac V8-6-4 engine. Make no mistake, If your vehicle has [&active&] [&fuel&] [&management&], you have a problem! GM is aware and do not have a fix for this issue.

Is there a problem with GMC Sierra Active Fuel Management?

There is a problem with the active fuel management systems on ALL 2007-2008 Sierras that have the 5.3L or 6.0. The 4.8L model does not have active fuel management. For the old timers out there, it is the same issue as the Cadillac V8-6-4 engine. Make no mistake, If your vehicle has active fuel management, you have a problem!

What kind of engine does a suburban have?

4) in 2007 the model with 5-door sport-utility wagon body and V-8 5327 cm3 / 325 cui engine size, 231 kW / 314 PS / 310 hp (SAE cert) of power, 454 Nm / 335 lb-ft of torque, 4-speed automatic powertrain offered since mid-year 2006 for North America U.S..

Are there problems with GM 5.3L V8 engine?

While the AFM system has been shown to improve fuel efficiency in testing, it has some long-term issues that have plagued consumers: Now, to be fair: Not every GM 5.3L V8 has problems with AFM. Many consumers report a trouble-free ownership experience. Still, AFM problems exist.

What does GM 5.3L Active Fuel Management do?

He said GM 5.3L active fuel management has a lot of bugs with valves -lifters failing. This tool keeps all 8 cyl running while at idle. Fuel mileage is still about 16 mpg city and 21 hwy. This tool stopped the engine from using or burning oil between changes.

How to disable 4 cylinder mode in GM Active Fuel Management?

Keep your vehicle in V8 mode! Disable 4 cylinder mode on all GM Active Fuel Management Vehicles.Installs in seconds! Plugs into diagnostic port with no tools needed.Does not reprogram factory ECU. Leaves no trace.Full power all the time.

What does AFM mean on a Chevy Silverado?

This article applies to the Chevrolet Silverado GMT900 (2007-2013). The AFM system, or Active Fuel Management system, is used to limit the power of a GM 6-cylinder or 8-cylinder engine and help increase its fuel economy.

How does the Active Fuel Management System work?

The Active Fuel Management system is designed to increase the fuel economy of your engine, without decreasing its overall power potential. Read this article to find out just how this system works. This article applies to the Chevrolet Silverado GMT900 (2007-2013).

Are there any AFM problems with the GM 5.3L V8?

Now, to be fair: Not every GM 5.3L V8 has problems with AFM. Many consumers report a trouble-free ownership experience. Still, AFM problems exist. The AFM excessive oil consumption problem usually crops up on vehicles that go on long highway drives. These kinds of trips don’t put much stress on the engine, so the AFM system deactivates pistons.

Can a DIY AFM fix stop excessive oil consumption?

While this fix has decreased the volume of complaints about the AFM system, many GM vehicle owners are still experiencing excessive oil consumption. A DIY AFM Fix. In an effort to try and keep the AFM system from causing long-term engine damage, many GM vehicle owners have turned to the after-market for help.

What kind of engine does GMC Yukon XL have?

The All New Yukon and Yukon XL are powered by the 5.3L Ecotec3 V8 engine paired with a 10-speed automatic transmission, providing more gear ratios to help enable maximum torque. The powerful 5.3L V8 engine offers 355 horsepower and 519 Nm of torque.

What is the cargo capacity of a Yukon XL?

Cargo volume (behind third-row) of 722.2 liters on all Yukon models. Cargo volume (behind third-row) of 1,175.3 liters on all Yukon XL models. *Cargo and load capacity limited by weight and distribution.

How to disable Active Fuel Management on GM LS?