1HDT Turbo Light

[Jeff Cooper]

Was driving today and noticed that the green Turbo light on the instrument cluster was not coming on.

What controls this light? What does the light indicate? I am reading as high as 10-12 pounds of boost, but still no light

Thanks in advance.

 

[mudandrock]

Was driving today and noticed that the green Turbo light on the instrument cluster was not coming on.

What controls this light? What does the light indicate? I am reading as high as 10-12 pounds of boost, but still no light

Thanks in advance.

There’s a vacuum controlled switch on your air box. That’s what sends signal to the turbo lights

 

[mudgudgeon]

Doesn't mean a lot to be honest. Just indicates you have boost above maybe 5-6psi.
If there was no boost, you'll know without a light.

The lights set up varies with different years.
I think later years had no boost light, but all had a red "over boost" light which came on at about 14-15psi

 

[Jeff Cooper]

Thank You!

I found a vacuum line that was disconnected…light comes on now.

 

[wagonteeth]

Yeah, my 94 only has the overboost light.