u/XavierEduardo99

What's this wiring for?

What's this wiring for?

Greetings, everyone!
I started my 1993 Volvo 850 today and noticed a loud humming noise, and when I disconnected the connector on the picture (The one by the passenger headlamp) It immediately stopped.

Any help will be greatly appreciated

u/XavierEduardo99 — 1 day ago
▲ 2 r/GMT800

RPMs going up and down while coasting

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Hi everyone, as you can see in the video, I’m going about 40 MPH in my 2001 Silverado 1500, and whenever I let off the gas pedal, the truck starts fluctuating between 1,100 and 1,300 RPM. You can actually feel it too; almost like someone is lightly pressing and releasing the accelerator. So the tachometer isn’t just bouncing around randomly.

Has anyone here experienced something similar? If so, what ended up being the cause, and how did you fix it?

u/XavierEduardo99 — 1 month ago