3.4L V6 87 Octane gas Problems
Jul 10, 2009 | 03:26 AM
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From: California City, CA
3.4L V6 87 Octane gas Problems
Hello everyone! I have a 97 4Runner SR5 V6 3.4L. Every time I put 87 Octane gas, my engine will knock like crazy every time I step on the gas hard. I f I put 91 problem will go away. My freind's 98 Limited does not do this with 87 or 89 octane. What could be causing this? I've done a full tune up. Any suggestions?
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