B0647 Pontiac Grandam DTC Code

Pontiac Grandam Engine Specifications:

Engine Type :	Multi-Cylinder Engine
Cylinder Type :	V-Type Engine
Engine Air Intake Process :	Naturally Aspirated

Your Pontiac Grandam engine control system detects a problem, the computer stores the diagnostic trouble code B0647 in its memory. To figure out what is wrong with your vehicle you must first extract the B0647 DTC For Pontiac Grandam.

To solve B0647 Pontiac Grandam problem, you'll have to remove the muffler, crankcase and other components blocking the valve chamber. Then, remove the cylinder head bolts (label for easy re-installation) Adjust the jaws of the valve spring compressor until they touch the top and bottom of the valve chamber Push the tool in to compress the spring and tighten the jaws Remove the retainers and lift out the valves , compressors and springs

B0647 Pontiac Grandam DTC Meaning

B	Body Code - Problem is antilock brake system, electronic suspension and steering systems.
0	SAE - Generic
6	Vehicle Speed Control And Idle Control System
4	Control Module Throttle Actuator Position Performance
7	Cruise Control System - Vehicle Accel Too High

The original multi-displacement system turned off opposite pairs of cylinders, allowing the engine to have three different configurations and displacements. B0647 Pontiac Grandam code had an elaborate diagnostics procedure, including showing engine trouble codes on the air conditionning display. However, the system was troublesome, misunderstood by customers, and a rash of unpredictable failures led to the technology being quickly retired.