Odarby said:Why does my compressor always ingage when selector is in any of the two defrost selections on my 99 XJ?? Is this normal??
darjevon said:Thats rediculus - there are times when it can be extremely important to defog a windshield quickly. Why do you think they manufactured it that way?
Odarby said:It is also detrimental for the clearing of ice on the outside of the windshield where heat not cold is the effective factor. It is not rediculus or even ridiculous.
That's when you scrape the windshield while the engine is warming up. Have the controls set to 'Vent' and turn the heat all the way up. That way, when you've got the windshield clear you can jump right back in and drive off. Keeping it on 'Vent' with ocasional forays into 'Defrost' has kept my XJ windshields clear of frost on the inside even during the coldest weather.Odarby said:Hmmmm,...so important that all vehicles have A/C. It is an option. It is the single most power demanding accessory. It is also detrimental for the clearing of ice on the outside of the windshield where heat not cold is the effective factor. It is not rediculus or even ridiculous.