Logo

Gmc K25 C0721 Engine Error Code

When you check Gmc K25 car engine light came on code C0721 the reason should be . However Gmc manufacturer may have a different definition for the C0721 OBD-II Diagnostic Chassis (C) Trouble Code. So you should chech it on our car models.

C0721 Gmc K25 Code Clear

A good ground connection is also extremely important. C0721 Gmc K25 engine problem because the presence of voltage at the panel harness won't make the panel work if there is a bad ground connection. Since the instrument cluster is mounted in a plastic dash, a separate ground wire or ground circuit through the wiring harness is usually needed to complete the power circuit. Refer again to the wiring diagram to find the ground path, and then check it with your ohmmeter. Do not use a self-powered test light because it cannot measure resistance (any resistance will lower circuit voltage).

C0721 Code Reason

Gmc K25 C0721 OBD-II Diagnostic Chassis (C) Trouble Code Description

so you have to check ODB-II Engine Error Code list.

Reason For Gmc K25 C0721 Code

The reason of Gmc K25 C0721 OBD-II Engine Error Code is .

There are currently two main types of cylinder deactivation used today, depending on the type of engine. C0721 Gmc K25 code for the pushrod design which uses solenoids to alter the oil pressure delivered to the lifters. In their collapsed state, the lifters are unable to elevate their companion pushrods under the valve rocker arms, resulting in valves that cannot be actuated and remain closed.

Gmc K25 C0721 Possible Solution :

In-line Ford engines, along with those of most other manufacturers, begin the numbering of cylinders at the front and proceed in numerical order toward the back. In the V-engine design, Ford follows a similar design with the number one cylinder at the front left of the engine. In the V-6 configuration, cylinder 4 is at the front right of the engine and in a V-8, cylinder number 5 is in that location. Other manufacturers sometimes use an alternating pattern in the V-engines.

What does fault code C0721 mean for Gmc K25 ?
What does a diagnostic reading C0721 mean for Gmc K25 ?
How to fix OBD2 Code C0721 for Gmc K25 ?
What do we know about C0721 code for Gmc K25 ?