1st Gen. Lunch Table - General Discussion

Yeah, I saw that part of the megathread and should have referenced it in my original post. The light isn't stuck on. It kind of fades in and out when I accelerate and disappears completely when I let off the gas. It doesn't show up at all under braking. After double checking the reservoir today and firmly seating the lid, the light came on a lot less, but still came on. Any chance this intermittent behavior would throw a code that my local auto store could pull?

 

@455h0le_dachshund Littlefoot makes an appearance once more

 

Holy shit! #heisresin

 

This.

 

I couldn't snap a picture, but I just saw my first LBJ failure aftermath in the wild. RIP to the fallen homie.

 

I'm thinking through that.

First test I would do is isolate, is this related to reservoir fluid motion, or is it related to the pedal action?

How would I do that?

I think I'd probably try tapping the gas, then brake in rapid succession, so the truck is rocking back/forth, thus the fluid in the MC should be rocking back/forth. If the light is getting strong when you tap the brake pedal and/or it persists/pulses in short waves after the truck stops, flickering in waves that would match fluid motion in the MC reservoir, then it's probably linked to the MC.

If it only happens when you're pressing the gas pedal, in rhythm with you tapping the gas pedal, I hate to say it, but I think both your '02 and '03 use drive-by-wire (I may be wrong on the '02?), and when you press the pedal, I think it's feeding a signal out over ETCS (electronic throttle control system). If you're tapping the pedal, and ETCS is feeding out a signal, and that signal transfer is triggering a light in the dash, I'm afraid I'd be looking at the wiring for corrosion. I want to say that 4-wire may be the ETCS connector on earlier trucks but may be mistaken.