The firing order should be 1-5-3-6-2-4.
The firing order is 1-5-3-6-2-4.
Inline six firing order is 1-5-3-6-2-4.
The firing order for a 1990 Jeep with a 4.0-liter inline-six engine is 1-5-3-6-2-4. For models with the 2.5-liter inline-four engine, the firing order is 1-3-4-2. It's important to refer to the specific engine type when checking the firing order for maintenance or repairs.
1984-1991 inline 6 firing order is 1-5-3-6-2-4.
clockwise
1-5-3-6-2-4
1-5-3-6-2-4
On my CJ6 Jeep also with a inline 6 engine the firing order = 1, 5, 3, 6, 2, 4.
1-5-3-6-2-4
4 cylinder engine 4qts V6 engine with filter change 4qts Inline 6cylinder engine 6qts
1-5-3-6-2-4 [from my Jeep manual... I own an '84 also].
1-5-3-6-2-4