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PAD SYSTEM 4.8 FULL CRACK CODE
PAD SYSTEM 4.8 FULL CRACK SERIES

PAD SYSTEM 4.8 FULL CRACK CODE

Check engine light and fault code (P0332 and others).

When you have a faulty knock sensor, the engine thinks it needs to alter timing despite there being no timing issues, which can lead to a number of performance issues. On the 4.8 Vortec, the knock sensor is known to go bad or become faulty and throw check engine lights. The sensors responsibility is to detect this knock and then alter the ignition and engine timing to prevent it from continuously happening.

When this happens, it causes a shock or vibration throughout the cylinder which increases cylinder pressure. Pre-detonation, or knock, occurs when one of the pockets of fuel ignites before the its turn in the sequence. If you ever hear a “knock” or “ping” noise on your 4.8 vortec, it’s likely engine knock which is caused by pre-detonation.įuel burns in pockets, almost like a row of fireworks. The knock sensor, as you could guess, functions to detect and prevent engine knock. The engine knock sensor sits on the intake manifold and is responsible for sensing vibrations caused by the engine. 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. The 4.8L is actually the same engine as the 5.3L, simply with less stroke and less displacement. Surprisingly enough, the LY2 platform was the only Gen IV Vortec engine to not feature variable valve timing. 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.

These engines were also used throughout various Chevy Express and GMC Savana sprinter vans during these years. 1999-2006 Silverado and Sierra 1500’s (as well as 2007 “Classic” models).The 4.8 Vortec had three different variations throughout its lifespan:

PAD SYSTEM 4.8 FULL CRACK SERIES

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 is a small-block V8 engine produced by General Motors from 1999-2013.