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2007 DENALI/Error message while towing
Time to replace the plugs anyway. The CEL goes out when the trailer is disconnected and you drive for a couple of minutes.- Glenn5ft19
- Post #5
- Forum: Engine & Drivetrain
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2007 DENALI/Error message while towing
79k miles. Probably has the original fuel pump. In 2020 I had a bad problem with vapour lock in the fuel line While towing. I wrapped the fuel line with heat reflective shield. Other people on line had experienced that problem and spent a lot of money at dealerships replacing fuel pumps etc...- Glenn5ft19
- Post #3
- Forum: Engine & Drivetrain
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2007 DENALI/Error message while towing
2007 Denali 6.2 L While towing a 3000 lb trailer with electric brakes. Service Traction control and Stabil link error messages keep flashing. Check engine light comes on too. I only get those messages while towing. I’m using the regular 6 pin connector with a centre ground. suggestions?- Glenn5ft19
- Thread
- Replies: 5
- Forum: Engine & Drivetrain
