What can cause a misfire in a Pontiac Grand Prix?
An oil leak in the spark plug tube can hinder the normal operation of the ignition coil in Pontiac Grand Prix, cause the engine to misfire, and can even damage the coil. This usually happens due to a leak in the spark plug tube seal in the valve cover. Replacing these seals mostly fixes the leak.
What is the firing order on a 2006 Pontiac Grand Prix?
3.5L Engine Firing order: 1-2-3-4-5-6 Distributorless ignition system.
How do I know if my ignition coil is firing?
The only safe way to test for spark is to use a spark plug tester tool. If a coil problem is suspected, measure the coil’s primary and secondary resistance with an ohmmeter. If either is out of specifications, the coil needs to be replaced.
What gives the ignition coil power?
When the ignition key is turned on, a low voltage current from the battery flows through the primary windings of the ignition coil, through the breaker points and back to the battery. This current flow causes a magnetic field to form around the coil.
What is the firing order on a 3800?
Firing order reference list
| Number of Cylinders | Firing Order | Application |
|---|---|---|
| 6 | 1-6-5-4-3-2 | GM 3800 engine, Rover KV6 engine |
| 1-2-3-4-5-6 | General Motors 60° V6 engine, Mazda JE 3.0 litre 60-degree V6 engine, Chrysler Pentastar engine | |
| 1-4-2-5-3-6 | Ford Cologne V6 engine, Ford Essex V6 engine (UK) | |
| 1-4-5-2-3-6 | Chevrolet Corvair |
Why is one of my cylinders not firing?
The engine may be running poorly and one or more cylinders may be misfiring. The check engine light may come on or keep flashing. The most common cause for a misfire is a problem related to the ignition system. Misfiring can be caused by loss of spark; imbalanced air/fuel mixture; or loss of compression.