{"id":35751,"date":"2016-08-11T16:25:28","date_gmt":"2016-08-11T21:25:28","guid":{"rendered":"http:\/\/www.freeautomechanic.com\/mechanic\/forum\/?p=35751"},"modified":"2016-08-11T16:25:28","modified_gmt":"2016-08-11T21:25:28","slug":"knock-sensor-2004-dodge-stratus","status":"publish","type":"post","link":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/2016\/08\/knock-sensor-2004-dodge-stratus","title":{"rendered":"Knock Sensor 2004 Dodge Stratus"},"content":{"rendered":"<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-34866\" src=\"\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2016\/02\/2004-dodge-stratus.jpg\" alt=\"2004 Dodge Stratus\" width=\"600\" height=\"254\" srcset=\"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2016\/02\/2004-dodge-stratus.jpg 600w, https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2016\/02\/2004-dodge-stratus-300x127.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/>I am trying to locate where the knock sensor is on my vehicle and what I will have to do to get to it.<\/p>\n<hr \/>\n<p>RESPONSE<\/p>\n<h3>Knock Sensor Removal &#8211; 2.7L<\/h3>\n<p>The sensor screws into the cylinder block, directly below the intake manifold.<\/p>\n<p>On the 2.7L engine the knock sensor is located under the intake manifold and passenger side cylinder head. The intake manifold and head will need to be removed to gain access. It is a tight fit and you will also need to use a crows foot socket to remove the knock sensor(1).<\/p>\n<p><img decoding=\"async\" class=\"aligncenter size-medium wp-image-35868\" src=\"\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2016\/08\/knock-sensor-2004-dodge-stratus-300x255.png\" alt=\"knock sensor location 2.7L engine 2004 Dodge Stratus\" width=\"300\" height=\"255\" srcset=\"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2016\/08\/knock-sensor-2004-dodge-stratus-300x255.png 300w, https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2016\/08\/knock-sensor-2004-dodge-stratus.png 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<h3>Removal &#8211; 4 Cylinder<\/h3>\n<p>The sensor threads into the side of the <a href=\"\/\/www.freeautomechanic.com\/engine.html\">engine<\/a> block in front of the <a href=\"\/\/www.freeautomechanic.com\/starting.html\">starter<\/a>. It is a tight fit and you will also need to use a crows foot socket to remove the knock sensor<\/p>\n<p><img decoding=\"async\" class=\"aligncenter size-medium wp-image-35870\" src=\"\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2016\/08\/knock-sensor-2004-dodge-stratus-4-cylinder-1-300x300.png\" alt=\"knock-sensor-2004-dodge-stratus-4-cylinder\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2016\/08\/knock-sensor-2004-dodge-stratus-4-cylinder-1-300x300.png 300w, https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2016\/08\/knock-sensor-2004-dodge-stratus-4-cylinder-1-150x150.png 150w, https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2016\/08\/knock-sensor-2004-dodge-stratus-4-cylinder-1-96x96.png 96w, https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2016\/08\/knock-sensor-2004-dodge-stratus-4-cylinder-1-24x24.png 24w, https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2016\/08\/knock-sensor-2004-dodge-stratus-4-cylinder-1-36x36.png 36w, https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2016\/08\/knock-sensor-2004-dodge-stratus-4-cylinder-1-48x48.png 48w, https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2016\/08\/knock-sensor-2004-dodge-stratus-4-cylinder-1-64x64.png 64w, https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2016\/08\/knock-sensor-2004-dodge-stratus-4-cylinder-1.png 640w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/p>\n<p><strong>\u00a0Installation<\/strong><\/p>\n<p>Install <span class=\"search_highlight\">knock<\/span> <span class=\"search_highlight\">sensor<\/span>. Tighten <span class=\"search_highlight\">knock<\/span> <span class=\"search_highlight\">sensor<\/span> to 10 N\u00b7m (7 ft. lbs.) torque. <b>Over or under tightening effects <span class=\"search_highlight\">knock<\/span> <span class=\"search_highlight\">sensor<\/span> performance, possibly causing improper spark control.<\/b><\/p>\n<p><code><iframe style=\"width: 120px; height: 240px;\" src=\"\/\/ws-na.amazon-adsystem.com\/widgets\/q?ServiceVersion=20070822&amp;OneJS=1&amp;Operation=GetAdHtml&amp;MarketPlace=US&amp;source=ss&amp;ref=as_ss_li_til&amp;ad_type=product_link&amp;tracking_id=freea08-20&amp;marketplace=amazon&amp;region=US&amp;placement=B000NPR2BC&amp;asins=B000NPR2BC&amp;linkId=9dd8a4c347c65c8c42472b8030837352&amp;show_border=true&amp;link_opens_in_new_window=true\" width=\"300\" height=\"150\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/code><\/p>\n<h4>OPERATION<\/h4>\n<p>When the knock sensor detects a knock in one of the cylinders, it sends an input signal to the PCM. In response, the PCM retards ignition timing for all cylinders by a scheduled amount.<\/p>\n<p>Knock sensors contain a piezoelectric material which constantly vibrates and sends an input voltage (signal) to the PCM while the engine operates. As the intensity of the crystal&#8217;s vibration increases, the knock sensor output voltage also increases.<\/p>\n<p>The voltage signal produced by the knock sensor increases with the amplitude of vibration. The PCM receives as an input the knock sensor voltage signal. If the signal rises above a predetermined level, the PCM will store that value in memory and retard ignition timing to reduce engine knock. If the knock sensor voltage exceeds a preset value, the PCM retards ignition timing for all cylinders. It is not a selective cylinder retard.<\/p>\n<p>The PCM ignores knock sensor input during engine idle conditions. Once the engine speed exceeds a specified value, knock retard is allowed.<\/p>\n<p>Knock retard uses its own short term and long term memory program.<\/p>\n<p>Long term memory stores previous detonation information in its battery-backed RAM. The maximum authority that long term memory has over timing retard can be calibrated.<\/p>\n<p>Short term memory is allowed to retard timing up to a preset amount under all operating conditions (as long as rpm is above the minimum rpm) except WOT. The PCM, using short term memory, can respond quickly to retard timing when engine knock is detected. Short term memory is lost any time the ignition key is turned off.<\/p>\n<p><em><strong>NOTE:<\/strong> <\/em>Over or under tightening affects knock sensor performance, possibly causing improper spark control.<\/p>\n<ul>\n<li><strong><a href=\"\/\/www.freeautomechanic.com\/car-engine-sensors.html\">Understanding Car Engine Sensors<\/a><\/strong><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I am trying to locate where the knock sensor is on my vehicle and what I will have to do to get to it. RESPONSE Knock Sensor Removal &#8211; 2.7L The sensor screws into the cylinder block, directly below the intake manifold. On the 2.7L engine the knock sensor is located under the intake manifold&hellip;&nbsp;<a href=\"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/2016\/08\/knock-sensor-2004-dodge-stratus\" rel=\"bookmark\">Read More &raquo;<span class=\"screen-reader-text\">Knock Sensor 2004 Dodge Stratus<\/span><\/a><\/p>\n","protected":false},"author":13841,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"categories":[1,20],"tags":[10111,7273],"class_list":["post-35751","post","type-post","status-publish","format-standard","hentry","category-auto-repair-questions","category-dodge","tag-knock-sensor","tag-stratus"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.0 (Yoast SEO v28.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Knock Sensor 2004 Dodge Stratus - FreeAutoMechanic Advice<\/title>\n<meta name=\"description\" content=\"I am trying to locate where the knock sensor is on my vehicle and what I will have to do to get to it. 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