The front-most cylinder on the passenger-side bank (right-hand side when facing the vehicle from the front) is Cylinder 1 on the 3.7L PowerTech V6 found in the 2005 Jeep Grand Cherokee.
In this article, we outline the engine’s two-bank arrangement, explain how cylinder numbering works on this engine, and provide practical guidance to locate Cylinder 1 for maintenance or inspection. This information helps you identify plugs, coils, and related components accurately without removing unnecessary parts.
Understanding the engine layout and cylinder numbering
The 3.7L PowerTech V6 uses a two-bank configuration with six cylinders total. Cylinders on one bank are numbered 1, 3, and 5, while the opposite bank carries 2, 4, and 6. The front-most cylinder on the passenger-side bank is Cylinder 1, with the sequence continuing toward the rear of the engine on that bank.
- Cylinders 1, 3, and 5 are located on the passenger-side (right-hand) bank when viewed from the front of the vehicle.
- Cylinders 2, 4, and 6 are located on the driver-side (left-hand) bank when viewed from the front of the vehicle.
- On the passenger-side bank, the front-most cylinder is Cylinder 1, followed by Cylinder 3 in the middle and Cylinder 5 at the rear.
Knowing this arrangement helps you identify which spark plug, coil, or fuel rail corresponds to Cylinder 1 without ambiguity, especially during diagnostic work or maintenance.
Locating Cylinder 1 on the actual engine
Use these practical steps to physically locate Cylinder 1 on a 2005 Grand Cherokee with a 3.7L engine.
- Stand in front of the vehicle with the hood up and face the engine. Identify the front of the engine (toward the radiator) and the passenger-side (right-hand) bank.
- Find the passenger-side valve cover/engine bank. This is the side that houses Cylinders 1, 3, and 5.
- Locate the front-most spark plug/coil area on that bank. The cylinder closest to the timing cover and the front of the engine on the passenger side is Cylinder 1.
If you’re unsure, consult the vehicle’s service manual or a reliable repair guide for a labeled diagram of the specific engine serial/ VIN configuration, and always confirm by checking the bank labeling or factory markings on the engine itself.
Firing order context
For precise maintenance or diagnostic work, verify the firing order in the official service documentation for your exact VIN. The article focuses on the physical location of Cylinder 1 rather than the sequence, which can vary slightly by model year or regional specification. When in doubt, rely on the factory manual or a trusted repair database for your Jeep Grand Cherokee’s exact specification.
Summary
On a 2005 Jeep Grand Cherokee with a 3.7L PowerTech V6, Cylinder 1 is the front-most cylinder on the passenger-side bank (the right-hand side when facing the vehicle from the front). The passenger-side bank is cylinders 1, 3, and 5, while the driver-side bank holds cylinders 2, 4, and 6. Use this location to identify spark plugs, coils, and related components efficiently, and consult the official manual for precise firing order and bank orientation as needed.
Which is cylinder one on a V6?
V engine. In a V engine the frontmost cylinder is usually #1, however there are two common approaches: Numbering the cylinders in each bank sequentially (e.g. 1-2-3-4 along the left bank and 5-6-7-8 along the right bank).
Where is cylinder 1 located?
One for instance. If you have to change a bad ignition coil or do other numerous. Things you have to know this the standard on an inline.
Where is cylinder 1 on a Jeep Grand Cherokee?
Side and it's just going to go 1 2 3 4 and the firing order for the Chrysler. 2.4 4 L is going to be 1. 3 4 2 and of course four-cylinder. Engines are only going to have one bank.
What is the firing order of a 3.7 Jeep?
3.7L engine Firing order: 1-6-5-4-3-2 One coil per cylinder. Fig. 4.7L engine Firing order: 1-8-4-3-6-5-7-2 One coil per cylinder.