So should my engine have cooled in the 90 degree summer heat after 3 hours? If not than the cold start injector has nothing to do with starting it then. How long does it take for the engine to cool for the thermal switch to switch on? --- In dmcnews@xxxxxxxxxxxxxxx, "content22207" <brobertson@...> wrote: > > As its name suggests, the cold start valve only operates on a cold > engine. There's a thermal switch in the cooling system (side of the > water pump if I remember correctly) that opens when the coolant heats > up, severing the cold start injector's ground and preventing it from > spraying. To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/dmcnews/join (Yahoo! ID required) <*> To change settings via email: mailto:dmcnews-digest@xxxxxxxxxxxxxxx mailto:dmcnews-fullfeatured@xxxxxxxxxxxxxxx <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/