Rookie transmission question

Clutch, transmission, rear axle

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duaneo
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Rookie transmission question

Post by duaneo »

Folks,

I'm trying to sort out my my truck isn't running like a racecar, and I realized I'm missing a bit of knowledge.

I've got a 360 with a C6.

The vacuum tube that runs from the intake manifold, what does it lead to? What does it do? How would my vehicle behave if that part wasn't working properly?

Thanks,
Duane
1971 F100 - Ugly on the outside, but purty under the hood...
1968 Chevrolet Impala - Family car since 1970, My car since I was 16, in need of bodywork/paint, but otherwise straight.
2004 Mini Cooper S - Daily driver and grown up go-kart
Steel Clydesdale
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Location: Idaho, north central

Re: Rookie transmission question

Post by Steel Clydesdale »

Hi Duane--

I think you're referring to the trans. 'vacuum modulator' If it's messed up, your tranny may not shift correctly, maybe not go low or high gear, etc.

Is that the kind of issue you're having?

If so, before you buy a modulator: Check that vacuum line carefully: Is it deteriorated? Does it connect snugly to the manifold and the modulator? Does it feel squishy--like it's possibly collapsing? *Edit: also ensure that it isn't plugged or kinked*

I'd replace the vac line first, then see how she runs.

Good luck!
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