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- Tue Sep 16, 2025 6:04 pm
- Forum: General Motors
- Topic: Idle speed tuning for 2018 Silverado 5.3L
- Replies: 0
- Views: 587
Idle speed tuning for 2018 Silverado 5.3L
Hi all, I'm looking for some help tuning a 2018 Silverado 5.3L to raise the idle speed at hot idle potentially when in gear as well. I understand this is weird request. I have a customer with low oil pressure at hot idle and he wants to raise the idle speed instead of repairing the internal issue. T...