[Edward]

With the engine running have you checked for bubbles in the coolant reservoir?

[Edward]

The modulator is the correct term, I called it a ‘control unit’ at the time I posted I couldn’t for the life of me remember what it was called. To save any confusion.

Still I stand by the post, and agree with the addition added by S.

Kdr

[Edward]

The modulator is the correct term, I called it a ‘control unit’ at the time I posted I couldn’t for the life of me remember what it was called. To save any confusion.

Still I stand by the post, and agree with the addition added by S.

Kdr

[Edward]

Hi cama,

On some Auto Transmitions you have an air hose coming from the vacuume pump (possibly via a solinoid valve) and many also via a regulator into a control unit fitted to the side of the transmittion.

If you have a problem, eg a hole in the hose a faulty, regulator, solinoid, control unit, or vacuume pump.

You will get exactly the symptoms you have described.

Your problem may be rectified simply by refitting a hose that has came off.

Hope this helps

Kdr

[Edward]

Hi cama,

On some Auto Transmitions you have an air hose coming from the vacuume pump (possibly via a solinoid valve) and many also via a regulator into a control unit fitted to the side of the transmittion.

If you have a problem, eg a hole in the hose a faulty, regulator, solinoid, control unit, or vacuume pump.

You will get exactly the symptoms you have described.

Your problem may be rectified simply by refitting a hose that has came off.

Hope this helps

Kdr

[Author]

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