Preparing and Installing the Coil Packs into an Aston Martin DB9

Aston Martin DB9 Coil Pack 4G4E-12A366-AA
DB9 Coil Pack

You may be installing Coil Packs into your DB9 as part of a scheduled service or as part of some other service issue.  I am swapping mine out as part of solving a Lumpy Idle issue (check out my post on this).  Regardless of the reason, getting it done right is important.  In this post I will cover preparing the coil packs plus how to install them properly. Continue reading “Preparing and Installing the Coil Packs into an Aston Martin DB9”

Preparing and Installing the Spark Plugs into an Aston Martin DB9

installing-the-spark-plugs-into-an-aston-martin-db9You may be installing new spark plugs into your DB9 as part of a scheduled service or as part of some other service issue.  I am swapping mine out as part of solving a Lumpy Idle issue (check out my post on this).  Regardless of the reason, getting it done right is important.  In this post I will cover preparing the plugs plus how to install them properly. Continue reading “Preparing and Installing the Spark Plugs into an Aston Martin DB9”

Removing the Spark Plugs from an Aston Martin DB9

spark-plug-being-removed-from-an-aston-martin-db9You may need to remove the Spark Plugs from your DB9 to replace them at a scheduled service interval or as part of some other service procedure (like doing a compression test or removing the valve cover, etc.).  This is a fairly simple procedure once you have all the preliminaries out of the way, but there are a few  small tricks to it I will share with you below. Continue reading “Removing the Spark Plugs from an Aston Martin DB9”

Removing the Coil Packs from an Aston Martin DB9

removing-the-coil-packs-from-an-aston-martin-db9Each cylinder in your DB9 V12 engine has its own individual coil pack installed on top of the spark plug right down in the valve cover area.   You might need to remove the coil packs to replace them, or service the spark plugs, or to remove the valve cover or something deeper in the engine.   I’m replacing mine since my car is suffering from a Lumpy Idle (see my post on this).  Removing them is pretty easy once you have the preliminary work necessary to access them out of the way. Continue reading “Removing the Coil Packs from an Aston Martin DB9”

Removing the Spark Plug Covers from an Aston Martin DB9

removing-the-spark-plug-covers-from-an-aston-martin-db9The Spark Plug Covers on a DB9 are used to shield both the Coil Packs and the Spark Plugs inside the valve cover.   All this is situated underneath the intake manifolds, so it’s a bit of a phaff to get to them.   You may need to remove the covers in order to change the Coil Packs or Spark plugs (like I am) or perhaps you are fixing a leaking valve cover gasket or something deeper in the engine.   Either way, it’s a pretty simple process. Continue reading “Removing the Spark Plug Covers from an Aston Martin DB9”

Removing the Intake Manifolds from an Aston Martin DB9

intake-manifold-removed-from-an-aston-martin-db9The intake manifolds in a DB9 are big and beautiful, blanketing most of the engine bay, so access to anything underneath usually requires removing them.  Some of the reasons you’d need to remove them include changing your Coil Packs and Spark Plugs (as I am doing at the moment).    In this post I am covering the actual final steps of unbolting the manifolds (which is a bitch of a challenge), sharing some tips on how to finagle them out of the tight spaces without breaking off the sensors, and unhooking the unseen vacuum hoses. Continue reading “Removing the Intake Manifolds from an Aston Martin DB9”