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75 blazer

08-12-2010 11:12 PM

1975 k5 blazer automatic not shifting into 2nd gear.

i recently bought a 1975 k5 blazer and out of no where it didnt want to shift into 2nd gear. it stays in 1st the whole time??? please help me.

thank you.

swartlkk

08-13-2010 06:36 AM

It could be a bad vacuum modulator. It is located near the side of the transmission near the back. It will have a vacuum line into it.

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