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6.5
fairly significant- Typical Repair Cost:
- No data
- Average Mileage:
- 2,450 miles
- Total Complaints:
- 4 complaints
Most Common Solutions:
- not sure (4 reports)
engine problem
Helpful websites
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A D V E R T I S E M E N T S
starts to run rough at 100klp then quits when slowed down
I have had 3 gm products since 2001 all 1500 models 2001 3.5 l 2013, 6.2, and now a 2015 3.5.
Each truck had the same problem, while driving at 100 klh they suddenly start to run rough, misfire, and loose power. If I slowed down to to let people pass or turn into my destination the truck would suddenly begin run normal. The next time this would happen happened randomly anytime, no pattern whatsoever.
Had dealer put on testing equipment nothing registered, no codes came up ever. Phoned Oshawa they have no idea what it could be. The cruise control would kick off just as motor started to run rough. Step on the gas no power seemed to suck for fuel.
- jdickau, Dayslandgmlemon, Canada