{"id":54600,"date":"2018-02-02T13:53:08","date_gmt":"2018-02-02T18:53:08","guid":{"rendered":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/?p=54600"},"modified":"2024-02-11T11:29:31","modified_gmt":"2024-02-11T19:29:31","slug":"engine-runs-at-4000-rpm-1996-gmc-suburban-4x4","status":"publish","type":"post","link":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/2018\/02\/engine-runs-at-4000-rpm-1996-gmc-suburban-4x4","title":{"rendered":"Engine runs at 4,000 rpm 1996 GMC Suburban 4×4"},"content":{"rendered":"

\"Chevy<\/p>\n

My Suburban wasn’t starting so I changed the Distributor and Rotor.\u00a0 It started but it runs at 4,000 RPM’s. I put a code scanner on it and got a P0102 code so I used Mass Air Flow <\/a>Cleaner on it and tried again. Same thing, 4,000 RPM’s but no codes this time. Can you give me an answer because I’m stumped! I looked at the throttle spring and it seems to snap back OK, please help. It is a 1996 GMC Suburban 4×4 4 door Automatic with a 5.7 liter engine.<\/p>\n

\n

The engine running with a high idle is a classic description of a vacuum leak.<\/p>\n

Chevy Code P0102<\/h3>\n

Mass Or Volume Air Flow A Circuit Low Input<\/p>\n

Probable causes<\/h4>\n
    \n
  1. Sensor or solenoid faulty<\/li>\n
  2. Connector terminal contact is damaged or corroded<\/li>\n
  3. Wire harness – Check harness for correct voltage, open, short to ground or short to voltage<\/li>\n
  4. Update control unit software – Check for the latest control unit update<\/li>\n
  5. Powertrain or Engine Control Module faulty<\/li>\n
  6. Battery voltage low<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"

    My Suburban wasn’t starting so I changed the Distributor and Rotor.\u00a0 It started but it runs at 4,000 RPM’s. I put a code scanner on it and got a P0102 code so I used Mass Air Flow Cleaner on it and tried again. Same thing, 4,000 RPM’s but no codes this time. Can you give… Read More »Engine runs at 4,000 rpm 1996 GMC Suburban 4×4<\/span><\/a><\/p>\n","protected":false},"author":14821,"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":[1,22],"tags":[21194,322,21193,526],"class_list":["post-54600","post","type-post","status-publish","format-standard","hentry","category-auto-repair-questions","category-gmc","tag-000-rpm","tag-high-idle","tag-runs-at-4","tag-suburban"],"_links":{"self":[{"href":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-json\/wp\/v2\/posts\/54600","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\/14821"}],"replies":[{"embeddable":true,"href":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-json\/wp\/v2\/comments?post=54600"}],"version-history":[{"count":0,"href":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-json\/wp\/v2\/posts\/54600\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-json\/wp\/v2\/media?parent=54600"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-json\/wp\/v2\/categories?post=54600"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.freeautomechanic.com\/mechanic\/forum\/wp-json\/wp\/v2\/tags?post=54600"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}