Loading...

Pontiac Grand Prix Ignition Coil Housings

Pontiac Grand Prix Ignition coil housings

Starting at low prices, AutoBuffy stocks multiple ignition coil housings from top OE-quality brands for the Pontiac Grand Prix. The coil housing is the protective shell that holds the ignition coil in position, seals it against moisture and vibration, and maintains proper electrical contact with the spark plug. A cracked or failed housing allows voltage to arc to ground, causing misfires, rough running, and potential coil damage.

Signs your Pontiac Grand Prix needs a new ignition coil housing

  • Engine misfire on one or more cylinders — often tied to the cylinder whose housing is cracked or melted
  • Check engine light with misfire codes (P030X series) pointing to a specific cylinder
  • Visible crack, burn mark, carbon tracking, or melted plastic on the housing body
  • Rough idle that worsens in damp or cold weather, when moisture enters a compromised housing seal
  • Hard start or no-start condition caused by voltage leaking to ground instead of reaching the plug
  • Smell of burning plastic or ozone near the engine, indicating arcing inside or around a damaged housing

Which ignition coil housing should you buy for your Pontiac Grand Prix?

The main decision is whether you need just the housing shell or a complete coil-and-boot assembly. Some Pontiac Grand Prix applications use a separate replaceable housing while others integrate the housing with the coil body, so confirming your exact configuration before ordering prevents a wasted return. Material quality and sealing design also vary between economy and OE-grade options.

OE-Equivalent Housing
Best for
Owners who want exact fit, correct dielectric sealing, and factory service life
What you get
Correct-spec thermoplastic shell, matched mounting tabs, and boot seal that meet original design tolerances
Economy / Value Housing
Best for
Budget repairs on high-mileage vehicles or secondary vehicles where longevity is less critical
What you get
Functional replacement at lower cost; may use thinner plastic and basic sealing; adequate for normal conditions
Performance / Heat-Resistant Housing
Best for
Vehicles with upgraded ignition coils, turbocharged engines, or engines producing elevated underhood heat
What you get
High-temp polymer construction, reinforced retention clips, and tighter boot seal rated for higher thermal loads
Complete Coil + Housing Assembly
Best for
Situations where the coil itself is also worn, arced, or of unknown condition — saves labor versus two separate jobs
What you get
New coil and housing together as a single matched unit, eliminating the risk of reinstalling a marginal coil into a new housing

Replacing ignition coil housings on a Pontiac Grand Prix

Easy⏱ 30–60 minutesSocket set with extensionTorque wrenchFlat-blade screwdriver or trim tool (for releasing coil connector clips)Dielectric greaseShop rags and brake cleaner (to clean plug well before reinstall)

Remove the engine cover if present, then disconnect the electrical connector from the coil, remove the single mounting bolt, and pull the coil and housing assembly straight up and out of the plug well. Clean any oil or debris from the plug well before seating the new housing, apply a thin film of dielectric grease to the inside of the boot, and reinstall in reverse order. Snug the mounting bolt to a firm stop without overtightening, which is the most common cause of immediate housing cracking.

Frequently asked questions

How much does it cost to replace ignition coil housings on a Pontiac Grand Prix?
Parts alone start at low prices for a single ignition coil housing for the Pontiac Grand Prix. Total cost depends on how many cylinders need replacement, whether you also replace the coil itself, and labor if shop-installed. Replacing all housings at once during a tune-up is common practice and usually the most cost-effective approach.
Can I drive my Pontiac Grand Prix with a cracked ignition coil housing?
You can drive short distances, but it is not advisable. A cracked housing allows voltage to arc to ground rather than fire the spark plug, causing a persistent misfire. Continued driving with a misfiring cylinder can overheat the catalytic converter, foul the oxygen sensor, and eventually damage the coil itself — turning a cheap fix into an expensive one.
Do I need to replace the ignition coil when I replace the housing on a Pontiac Grand Prix?
Not always, but it is worth inspecting the coil closely. If the housing failed from arcing or overheating, the coil windings inside may have been damaged by the same event. Check for carbon tracking on the coil body and test output if possible. When in doubt — especially on high-mileage vehicles — replacing both together is the safer choice.
How long do ignition coil housings last on a Pontiac Grand Prix?
A quality OE-equivalent housing typically lasts many years under normal conditions, but service life varies based on underhood heat, exposure to oil leaks, and the number of heat cycles the engine sees. Housing failure is often triggered by an external factor — an oil leak soaking the boot, or a prior coil failure that caused internal arcing — rather than simple age alone.
What causes ignition coil housings to fail on a Pontiac Grand Prix?
The most common causes are heat cycling that embrittles the plastic over time, oil contamination from a leaking valve cover gasket that degrades the boot seal, physical cracking from overtightening the mounting bolt, and internal arcing caused by a weak coil or fouled spark plug that forces voltage to find an alternate path through the housing wall.
Will any ignition coil housing fit my Pontiac Grand Prix, or does it need to be vehicle-specific?
It must be vehicle-specific. Ignition coil housings vary by coil connector type, mounting bolt pattern, boot diameter, and overall length. Using the correct part number for the Pontiac Grand Prix ensures proper electrical contact, a weathertight seal at the plug well, and secure retention on the valve cover. Always verify fitment by entering your exact year and engine before ordering.

More parts for your Pontiac Grand Prix

Power Seat Switch ConnectorSecondary Air Injection Pipe GasketCV Axle Shaft SetSupercharger Bypass SolenoidA/C Compressor ConnectorIgnition Switch ConnectorEngine Cooling Fan MotorA/C Condenser and Receiver Drier Assembly

Ignition coil housings for other Pontiac models

Pontiac Grand AmPontiac TempestPontiac SunfirePontiac 6000