{"id":35904,"date":"2016-08-23T11:51:38","date_gmt":"2016-08-23T16:51:38","guid":{"rendered":"http:\/\/www.freeautomechanic.com\/mechanic\/forum\/?p=35904"},"modified":"2016-08-23T11:51:38","modified_gmt":"2016-08-23T16:51:38","slug":"oil-pressure-switch-1990-ford-ranger","status":"publish","type":"post","link":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/2016\/08\/oil-pressure-switch-1990-ford-ranger","title":{"rendered":"Oil Pressure Switch 1990 Ford Ranger"},"content":{"rendered":"<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-36098\" src=\"\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2016\/08\/1990-ford-ranger.jpg\" alt=\"1990 Ford Ranger\" width=\"600\" height=\"337\" srcset=\"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2016\/08\/1990-ford-ranger.jpg 600w, https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2016\/08\/1990-ford-ranger-300x169.jpg 300w\" sizes=\"(max-width: 600px) 100vw, 600px\" \/>Where is the oil pressure switch, I cannot find it on my 1990 Ford Ranger 2.9L <a href=\"\/\/www.freeautomechanic.com\/engine.html\">engine<\/a>?<\/p>\n<hr \/>\n<p>RESPONSE<\/p>\n<p><span class=\"n\">NOTE: <span class=\"search_highlight\">Oil<\/span> <span class=\"search_highlight\">pressure<\/span> senders are used for <span class=\"search_highlight\">oil<\/span> <span class=\"search_highlight\">pressure<\/span> gauges, whereas the <span class=\"search_highlight\">oil<\/span> <span class=\"search_highlight\">pressure<\/span> switches are used for vehicles equipped only with a low <span class=\"search_highlight\">oil<\/span> <span class=\"search_highlight\">pressure<\/span> warning lamp.<\/span><\/p>\n<p>The <span class=\"search_highlight\">oil<\/span> <span class=\"search_highlight\">pressure<\/span> senders\/switches are located as follows:<\/p>\n<ul>\n<li>2.3L engine\u00a0\u2014\u00a0left, rear side of the engine, in the cylinder head<\/li>\n<li>2.9L and 4.0L engines\u00a0\u2014\u00a0front left side of the engine, below the cylinder head in the engine block<\/li>\n<\/ul>\n<h3>Oil Pressure Switch Testing<\/h3>\n<p><img decoding=\"async\" class=\"aligncenter size-full wp-image-36097\" src=\"\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-content\/uploads\/2016\/08\/1990-ford-ranger-oil-pressure-switch-location-diagram.gif\" alt=\"1990 Ford Ranger oil pressure switch location diagram\" width=\"300\" height=\"300\" \/><\/p>\n<ol>\n<li>To test the oil pressure switch, open the hood and locate the switch.<\/li>\n<li>Disconnect the wire from the switch. Attach one end of a jumper wire to the terminal on the end of the wire, then touch the other end of the jumper wire to a good engine ground (any bare metal engine surface). Have an assistant observe the instrument gauge cluster while you do this and tell you if the low <span class=\"search_highlight\">oil<\/span> warning lamp illuminates or not; the low <span class=\"search_highlight\">oil<\/span> warning lamp should illuminate.\n<ol type=\"A\">\n<li>If the lamp does not illuminate, skip to Step 3.<\/li>\n<li>If the lamp does illuminate, replace the switch with a new one.<\/li>\n<\/ol>\n<\/li>\n<li>Before jumping to any bad conclusions, try a different area for grounding the jumper wire on the engine. If the lamp still does not illuminate, touch the jumper wire end to the negative (-) battery post.\n<ol type=\"A\">\n<li>If the lamp illuminates, the problem lies with the engine not being properly grounded.<\/li>\n<li>If the lamp does not illuminate, skip to Step 4.<\/li>\n<\/ol>\n<\/li>\n<li>Connect the original wire to the <span class=\"search_highlight\">oil<\/span> <span class=\"search_highlight\">pressure<\/span> switch. While sitting in the vehicle, turn the ignition switch to the <b>\u00a0ON<\/b>\u00a0position without actually starting the engine. Observe the other lights on the instrument cluster.\n<ol type=\"A\">\n<li>If all of the other lights illuminate when turning the ignition switch <b>\u00a0ON<\/b>, the <span class=\"search_highlight\">oil<\/span> <span class=\"search_highlight\">pressure<\/span> switch is defective and must be replaced.<\/li>\n<li>If none of the other lights illuminate, there is a problem with power supply to the instrument cluster and gauges.<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n<h3>Oil Pressure Switch Removal<\/h3>\n<p>1.Disconnect the negative battery cable.<br \/>\n2.Disconnect the wiring at the sender\/switch.<br \/>\n3.Remove the oil pressure sender\/switch from the engine.<br \/>\nTo install:<\/p>\n<p>4.Coat the threads with electrically conductive sealer and thread the unit into place. Tighten the sender\/switch to 10\u201318 ft. lbs. (13\u201324 Nm).<br \/>\n5.Attach the wiring to the sender\/switch and connect the negative battery cable.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Where is the oil pressure switch, I cannot find it on my 1990 Ford Ranger 2.9L engine? RESPONSE NOTE: Oil pressure senders are used for oil pressure gauges, whereas the oil pressure switches are used for vehicles equipped only with a low oil pressure warning lamp. The oil pressure senders\/switches are located as follows: 2.3L&hellip;&nbsp;<a href=\"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/2016\/08\/oil-pressure-switch-1990-ford-ranger\" rel=\"bookmark\">Read More &raquo;<span class=\"screen-reader-text\">Oil Pressure Switch 1990 Ford Ranger<\/span><\/a><\/p>\n","protected":false},"author":13668,"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":[5,1],"tags":[10869,10868,434],"class_list":["post-35904","post","type-post","status-publish","format-standard","hentry","category-ford","category-auto-repair-questions","tag-oil-pressure-sending-unit","tag-oil-pressure-switch","tag-ranger"],"_links":{"self":[{"href":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-json\/wp\/v2\/posts\/35904","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-json\/wp\/v2\/users\/13668"}],"replies":[{"embeddable":true,"href":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-json\/wp\/v2\/comments?post=35904"}],"version-history":[{"count":0,"href":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-json\/wp\/v2\/posts\/35904\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-json\/wp\/v2\/media?parent=35904"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-json\/wp\/v2\/categories?post=35904"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-json\/wp\/v2\/tags?post=35904"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}