Having problems with your 1988 GMC S-15 ?
What is the firing order for an 89 gmc s15 2.8 liter v6?
Hello cman0906: My name is Roger and I will answer your question. The fire order is 1 5 6 4 3 2. See picture. Please rate the answer you recieved. This way we know your answer was correct. Should you need further halp please just ask. Thank You for using Fix Ya. Roger
Repair Help & Product Troubleshooting for 1988 GMC S-15
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