1 - 8 - 4 - 3 - 6 - 5 - 7 - 2
firing order is1432
the firing order is 1342
1,3,2,4 that is the firing order.
diagram of firing order on a 1990 Oldsmobile cutless 3.3 engine
1-8-4-3-6-5-7-2.Firing order for 75 Vette
Go to Google.com and type in the words "1990 Geo Tracker firing order" and it will get you to a site that will tell you.
1,3,4,2
Pontiac.on.nimp.org That's should help you with the firing order. KOCKNMOUTH
The correct firing order is 13726548.
Worn camshaft, bent pushrod, burned intake valve, incorrect firing order,
1342
1,3,4,2