check engine light still on when truck is running.
Jan 18, 2024 at 2:08 PM
check engine light on?
1981 GMC TRUCK
FREDRICK6021
- MEMBER
- 1 POST
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JACOBANDNICKOLAS
- ✓ASE Certified Mechanic
- 110,193 POSTS
Hi,
Because of the model year, there isn't an easy way to retrieve diagnostic codes. So, I have to ask what is happening when you use the vehicle. For example, is there a misfire? Are there any drivability issues such as stalling, back firing, loss of power, and so on?
Let me know as much as you can.
Take care.
Joe
Because of the model year, there isn't an easy way to retrieve diagnostic codes. So, I have to ask what is happening when you use the vehicle. For example, is there a misfire? Are there any drivability issues such as stalling, back firing, loss of power, and so on?
Let me know as much as you can.
Take care.
Joe
Jan 18, 2024 at 9:43 PM
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