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7.4 (454) rough idle, fuel rich exhaust
Hello first time posting here. Have a 99 suburban k2500 7.4. Bought in 2015 with 136,000 miles. Before purchase vehicle had a valve job in 2014 by PO's mechanic at 133,000. Ran rough during test drive in 2015, PO's mechanic "turned up idle", I then purchased vehicle. Has never thrown a code for...- Bigburb
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- Forum: 96+ Vortec Performance + Computer Swaps
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kennythewelderOfficially Retired, B31-3 (6-G) certified welder.
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