LPG AUTO GAS UNIT FREEZING.

in sufficient water flow thru the gas regulator/mixer

G'day Reevo,

I addition to already mentioned items if you have changed the coolant recently an air lock in the coolant pipes to the gas exchanger could do it.
Check that they feel warm with the engine up to normal temp.

Also check that engine is not running too cool due to thermostat stuck open.
Cheers
Stu

I had a similar problem in a company car and it turned out that the orifice limiting gas flow was too small.

Cheers

Had same problem with ford Egas ute, turned out to be the Thermostat ??

REEVO:

Is the water flow through the converter in "series" or in "parallel" with the cabin heater? "Y" fittings should be used in the plumbing of the hoses, so that water circulates regardless of the thermostat or the heater control valve. Even "cold" water passing through the converter is fine, as long as it is above minus 40 degrees!

If the vehicle ran OK before, there would never be a need of increase the size of any valve orifice in the converter.

Is the power and fuel economy OK? What brand of LPG carburation do you have?

Does the LPG lock-off have ice forming on it? If so, the filter needs to be replaced, as it will be blocked too much.

Regards

Colin

I had to change out the complete heat exchange unit on my work ute as it would ice up.
Started as every now and then but in the end would only get about 20Km and it die.