1.0FreeAutoMechanic Advicehttps://www.freeautomechanic.com/mechanic/forumglenncruser111https://www.freeautomechanic.com/mechanic/forum/author/glenncruser111rich600338<blockquote class="wp-embedded-content" data-secret="XKuRJyWB35"><a href="https://www.freeautomechanic.com/mechanic/forum/2015/07/2004-chevy-trailblazer-2">2004 chevy trailblazer</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.freeautomechanic.com/mechanic/forum/2015/07/2004-chevy-trailblazer-2/embed#?secret=XKuRJyWB35" width="600" height="338" title="“2004 chevy trailblazer” — FreeAutoMechanic Advice" data-secret="XKuRJyWB35" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); </script> today my ABS and brake light came on and stayed on. also, the air is still cold but barely blows out. it blows out stronger when driving but not at all when stopped. otherwise, the engine and all other electrical systems are all working just fine. what could be the problem