Is it safe to disable AFM?

Based on certain conditions and models, the MPG variation can be high or low. But to eliminate that possibility completely, disabling the AFM is indeed a better option for you. It’s an undeniable fact that the AFM is an appreciating tech to push fuel efficiency to a finer level.

Can a Chevy C / K 1500 engine not start?

Chevrolet C/K 1500 Questions – truck will not start, engine turns, but does not fire at all. – CarGurus truck will not start, engine turns, but does not fire at all. other computer-related things that could be interfering?

Why does my Chevy Silverado truck not start?

The starting problems of a vehicle can be different. In some cases the truck starts at least sporadically and allows its owner to drive independently to the nearest specialist workshop. In other cases, the truck won’t start until the underlying problem is solved. The nature of the starting problems depends on their cause.

Why does my Vortec engine not start at all?

11 people found this helpful. check your fuel pressure. The vortec engines are known to have the fuel pressure regulator fail and leak into the intake. At the worst of it the vehicle cant start at all, it will flood a couple cylinders and not feed fuel to the rest. This can be checked for by checking fuel pressure and leakdown rate.

Is the Chevy 6.7 Cummins out of warranty?

Truck has 116000 miles so already out of warranty. Search under Chevy performance calibration. There are companies that sell you a module that you use to load their cal. The module also stores your original cal in case you need to go back. The company doing this for Dodge 6.7 Cummins is called bully dog.

Are there any problems with the Chevy 4.8 engine?

E85 Flex-Fuel competency. With its efficiency, the Vortec 4.8 has a clean-burning compartment which creates unconventional fuel. Some of the most common Chevy 4.8 Engine Problems and solutions include: Reports indicate that when you depress on the gas, it will appear and sound as no power is coming- till it reaches 1800 RPMs.

When did the Chevy 4.8L Vortec come out?

The 4.8 Vortec is a small-block V8 engine produced by General Motors from 1999-2013. The engines spanned from Gen III to Gen IV of the Vortec series before being phased out after 2013 in favor of the 5.3 Vortec with Active Fuel Management. The 4.8 Vortec had three different variations throughout its lifespan: LR4 (Gen III)

Is the 4.8L Vortec the same engine as the 5.3L?

8L is actually the same engine as the 5.3L, simply with less stroke and less displacement. The two engines tend to have similar problems, but the 4.8 Vortec comes in at a higher reliability rating on our scale due to its lack of AFM, which is known to cause problems on just about every engine it touches. Chevy 4.8L Vortec Engine Problems

Is the Chevy Tahoe a 5.3 Vortec engine?

In the L20 version, the Tahoe and Yukon were upgraded to the 5.3 Vortec while the Silverado and Sierra remained on the 4.8 platform. Surprisingly enough, the LY2 platform was the only Gen IV Vortec engine to not feature variable valve timing.