Mechanics

DOES A HAVE A MODULATOR VALVE? 4.2 ENGINE.

1983 Jaguar XJ6 • 130,500 miles

It will not go into 2nd or low. In drive it starts out as if it has no power. But levels out when on open road. But can shift to 2nd and low with no change.
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Dbro58
December 29, 2011.



Yes, it does have a vacuum modulator.

Rivermikerat
Dec 29, 2011.