P3221 Pontiac Grande Parisienne DTC Code

Pontiac Grande Parisienne Engine Specifications:

Engine Type :	Multi-Cylinder Engine
Cylinder Type :	Opposite Piston Engine
Engine Air Intake Process :	Supercharged Engine

Your Pontiac Grande Parisienne engine control system detects a problem, the computer stores the diagnostic trouble code P3221 in its memory. To figure out what is wrong with your vehicle you must first extract the P3221 DTC For Pontiac Grande Parisienne.

Another consequence of P3221 Pontiac Grande Parisienne engine overheating may be a blown head gasket. Heat makes aluminum swell almost three times faster than cast iron. Thermal stress can distort the head and make it swell in areas that are hottest like those between exhaust valves in adjoining cylinders, and areas that have restricted coolant flow like the narrow area that separates the cylinders. The typical aluminum head swells most in the middle, which can crush the head gasket if the head gets too hot. This will usually cause the head gasket to leak compression between adjacent cylinders, or leak coolant into the cylinders.

P3221 Pontiac Grande Parisienne DTC Meaning

P	Powertrain Code - Problem is related engine, transmission and emissions systems.
3	SAE - Generic
2	Computer And Auxiliary Outputs
2	Cruise Control Servo Indicates Low
1	PCM Stack Overrun

If your P3221 Pontiac Grande Parisienne check engine light is illuminated, it's best to take it in for diagnostic testing, which can feel like a hassle. Because while the lights vary in appearance from vehicle to vehicle, all have the same basic meaning: There's a problem with the car's emissions system. The on-board diagnostics system P3221 and engine control unit are in charge of monitoring a bunch of different P3221 DTC For Pontiac Grande Parisienne, and if they get a reading that's a little out of whack, up pops the check engine light.