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What should your scan tool read for degrees at idle on a 98 4.3?
Belltime
From what I can tell from checking around the internet, your scan tool should read 0 degrees at idle for a 98 GMC 4.3 vortec. If your scan tool is reading anything else at idle, you probably want to have your mechanic check the vehicle for loose or worn parts.
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∙ 10y ago
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