U0988 Pontiac Grandeparisienne DTC Code

Pontiac Grandeparisienne Engine Specifications:

Engine Type :	Multi-Cylinder Engine
Cylinder Type :	V-Type Engine
Engine Air Intake Process :	Turbocharged Engine

Your Pontiac Grandeparisienne engine control system detects a problem, the computer stores the diagnostic trouble code U0988 in its memory. To figure out what is wrong with your vehicle you must first extract the U0988 DTC For Pontiac Grandeparisienne.

To solve U0988 Pontiac Grandeparisienne 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

U0988 Pontiac Grandeparisienne DTC Meaning

U	Network Code - Problem is climate control system, lighting, airbags, etc.
0	SAE - Generic
9	Transmission
8	Crankshaft Position Sensor Circuit Performance
8	Park/Neutral Postion (PNP) Switch Circuit Engine Torque Signal Circuit

The original multi-displacement system turned off opposite pairs of cylinders, allowing the engine to have three different configurations and displacements. U0988 Pontiac Grandeparisienne 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.