yuyu2222 Posted December 6, 2005 Share Posted December 6, 2005 I have a 1993 Legacy Sedan 2.2 with a block heater. I plug it in on cold nights, otherwise no way will it start in the am. Also on cold days, I will start it about every 2-3 hours if I can get away from work. Most often it's fine when I do that. I have found that, like yesterday, it won't start after 2-3 hours. What causes this to freeze up fast? Ultimately, I have to have it towed home and plug it in. AAA has paid for itself. When I finally get it to start, I really have to force it. Could there be another cause for this problem? Quote Link to comment Share on other sites More sharing options...
Jerry DeMoss Posted December 6, 2005 Share Posted December 6, 2005 Maybe your temp sensors are bad.Also check cold start valve. Quote Link to comment Share on other sites More sharing options...
Legacy777 Posted December 6, 2005 Share Posted December 6, 2005 Your coolant temp sensor is probably not good. As long as the temp isn't insanely cold, like -30 deg, the engine should start fine. I'd suggest replacing the coolant temp sensor. It can be had for around $20 at www.subarugenuineparts.com Quote Link to comment Share on other sites More sharing options...
LosDiosDeVerde86 Posted December 6, 2005 Share Posted December 6, 2005 there could be water in your coolant too. Quote Link to comment Share on other sites More sharing options...
nipper Posted December 6, 2005 Share Posted December 6, 2005 er um .... water in your coolant? i should hope so *snicker* i also say a bad Temp sensor for the ecu. nipper Quote Link to comment Share on other sites More sharing options...
frag Posted December 6, 2005 Share Posted December 6, 2005 er um .... water in your coolant? i should hope so *snicker* i also say a bad Temp sensor for the ecu. nipper Be charitable Nipper, he surely meant water in the gas. Quote Link to comment Share on other sites More sharing options...
Snowman Posted December 6, 2005 Share Posted December 6, 2005 It won't crank, or it won't fire? Big difference here. Trust me, these cars can be started at -40 and below without a block heater, so something is not right. The suggestions made already are good if it's a no-fire issue. If it won't crank, start checking your battery, cables, and ground connections. Quote Link to comment Share on other sites More sharing options...
yuyu2222 Posted December 6, 2005 Author Share Posted December 6, 2005 It cranks, but it won't fire. Others have suggested the temp sensor. I also have a problem with it starting when I drive it around a lot on a hot day. When I try and start it then, it does nothing...the lights and radio come on but it doesn't crank. Could this be the same problem? If I let it sit for about 10 or 15 minutes, it will start. My dad has a 93 Legacy wagon that does the same thing in hot weather. It won't crank, or it won't fire? Big difference here. Trust me, these cars can be started at -40 and below without a block heater, so something is not right. The suggestions made already are good if it's a no-fire issue. If it won't crank, start checking your battery, cables, and ground connections. Quote Link to comment Share on other sites More sharing options...
Snowman Posted December 6, 2005 Share Posted December 6, 2005 Not cranking when hot is often a ground-related problem. Coolant temp sensor sounds like the most likely candidate. Quote Link to comment Share on other sites More sharing options...
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