{"id":534687,"date":"2026-07-17T17:54:38","date_gmt":"2026-07-17T21:54:38","guid":{"rendered":"https:\/\/www.fs1inc.com\/blog\/?p=534687"},"modified":"2026-07-19T12:26:06","modified_gmt":"2026-07-19T16:26:06","slug":"2004-pontiac-montana-pcm-replacement-guide","status":"publish","type":"post","link":"https:\/\/www.fs1inc.com\/blog\/2004-pontiac-montana-pcm-replacement-guide\/","title":{"rendered":"2004 Pontiac Montana Engine Control Module Replacement and Programming Guide"},"content":{"rendered":"<div class=\"container\">\n<section class=\"hero\">\n<div class=\"code-badge\">PCM<\/div>\n<h1>2004 Pontiac Montana Engine Control Module Replacement and Programming Guide<\/h1>\n<p class=\"hero-subtitle\">The Engine Control Module in a 2004 Pontiac Montana manages engine timing, fuel delivery, and emission controls. A failure typically results in loss of power, erratic idle, or diagnostic trouble codes, requiring removal, replacement, and proper reprogramming to restore vehicle operation.<\/p>\n<\/section>\n<div class=\"quick-summary\">\n<h2>Quick Summary<\/h2>\n<ul>\n<li>Removal and installation each require about 1.1\u202fhours of labor.<\/li>\n<li>Relearn procedures for the ECM and PCM add roughly half an hour each.<\/li>\n<li>Programming must follow a GM service bulletin or specific procedure.<\/li>\n<li>Flagship One units arrive VIN\u2011programmed, eliminating the need for off\u2011board steps.<\/li>\n<\/ul>\n<\/div>\n<div class=\"info-section\">\n<p>When a 2004 Pontiac Montana experiences engine\u2011control issues, the repair path often leads to the ECM. Understanding what the module does, where it lives, and the steps needed after replacement helps you avoid unnecessary downtime. This guide explains the module\u2019s role, the removal process, the required programming cautions, and how a pre\u2011programmed replacement from Flagship One simplifies the job.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>What the PCM Does in a 2004 Pontiac Montana<\/h2>\n<p>In the 2004 Pontiac Montana the Engine Control Module monitors sensor inputs, controls fuel injection and ignition timing, and communicates with the powertrain system. Its proper operation is essential for reliable engine performance and emissions compliance. Replacing a faulty unit involves accessing the module near the air cleaner and installing a new one that matches the vehicle\u2019s specifications. For a seamless swap, consider <a href=\"https:\/\/www.fs1inc.com\/gm\/pontiac-pcm-ecm-ecu-engine-computer\/montana-engine-computers.html\">2004 Pontiac Montana replacement modules<\/a> that meet GM\u2019s programming requirements.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Where the PCM Is Located and What Replacement Involves<\/h2>\n<p>The factory removal instructions indicate the control module sits beside the air cleaner assembly, making it reachable without extensive disassembly. Removing the module and reinstalling a new one each takes roughly 1.1\u202fhours according to the labor guide. After installation, a 0.5\u2011hour relearn for the ECM and another 0.5\u2011hour relearn for the PCM are typical to ensure the vehicle\u2019s control strategies are re\u2011established.<\/p>\n<figure style=\"margin:22px auto;text-align:center;max-width:720px\"><img decoding=\"async\" style=\"max-width:100%;height:auto;border:1px solid #e2e6ec;border-radius:8px\" src=\"https:\/\/www.fs1inc.com\/blog\/wp-content\/uploads\/2026\/07\/2004-pontiac-montana-pcm-location-diagram.webp\" alt=\"2004 Pontiac Montana PCM location diagram\" loading=\"lazy\"\/><figcaption style=\"font-size:13px;color:#667085;margin-top:8px\">PCM mounting location on the 2004 Pontiac Montana.<\/figcaption><\/figure>\n<div style=\"background:#f7f9fc;border:1px solid #e2e8f2;border-radius:10px;padding:18px 24px;margin:18px 0\">\n<h3 style='margin-top:0'>How to Reach the PCM on the 2004 Pontiac Montana<\/h3>\n<ol style=\"margin:14px 0 6px 0;padding-left:26px\">\n<li style=\"margin:10px 0;line-height:1.65\"><b>Remove<\/b> the coolant reservoir retaining fastener.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Remove<\/b> the coolant reservoir and set aside.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Remove<\/b> the 3 bolts from the strut brace.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Remove<\/b> the left front strut brace.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Loosen<\/b> the two bolts the PCM cover and remove the PCM cover.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Remove<\/b> the PCM from the air cleaner housing.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\"><b>Disconnect<\/b> the PCM electrical connectors.<\/li>\n<\/ol>\n<p style='margin:10px 0 0 0'><em>Work with the ignition off, and treat the module as static-sensitive: avoid touching the connector pins at any point.<\/em><\/p>\n<\/div>\n<table style=\"width:100%;border-collapse:collapse;margin:18px 0;font-size:15px\">\n<tr>\n<th style=\"border:1px solid #d6dbe3;background:#f2f5f9;padding:9px 12px;text-align:left\">Operation<\/th>\n<th style=\"border:1px solid #d6dbe3;background:#f2f5f9;padding:9px 12px;text-align:left\">Configuration<\/th>\n<th style=\"border:1px solid #d6dbe3;background:#f2f5f9;padding:9px 12px;text-align:left\">Book Time<\/th>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">Engine Control Module R&amp;R<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">All configurations<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">1.1 hr<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">Engine Control Module Relearn<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">All configurations<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">0.5 hr<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">Powertrain Control Module Relearn<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">All configurations<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">0.5 hr<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">Powertrain Control Module R&amp;R<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">All configurations<\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\">1.1 hr<\/td>\n<\/tr>\n<\/table>\n<\/div>\n<div class=\"info-section\">\n<h2>Programming Requirements After Replacement<\/h2>\n<p>After the module is installed, GM cautions that you must follow a specific service procedure or bulletin; interrupting the ignition or using outdated software can leave the programming incomplete. Flagship One provides <a href=\"https:\/\/www.fs1inc.com\/2004-pontiac-montana-3-4l-engine-computer-pcm-ecm-ecu-programmed-plug-play.html\">a VIN-programmed replacement unit<\/a> that arrives already calibrated, so the off\u2011board programming steps are already satisfied.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Symptoms of a Failing PCM<\/h2>\n<p>A failing ECM in this model may cause the engine to refuse to start, stall unexpectedly, run rough, or trigger a range of diagnostic codes. You might also see communication loss with scan tools, leading to no data. One common code is <a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0601-internal-control-module-memory-checksum-error\/\">processor fault<\/a>, indicating internal processor issues that typically require module replacement.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Module Trouble Codes on the 2004 Pontiac Montana<\/h2>\n<p>The following trouble codes are stored within the ECM of the 2004 Pontiac Montana and may appear when the module is malfunctioning:<\/p>\n<table style=\"width:100%;border-collapse:collapse;margin:18px 0;font-size:15px\">\n<tr>\n<th style=\"border:1px solid #d6dbe3;background:#f2f5f9;padding:9px 12px;text-align:left\">Code<\/th>\n<th style=\"border:1px solid #d6dbe3;background:#f2f5f9;padding:9px 12px;text-align:left\">Meaning<\/th>\n<th style=\"border:1px solid #d6dbe3;background:#f2f5f9;padding:9px 12px;text-align:left\">Full Guide<\/th>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0601-internal-control-module-memory-checksum-error\/\" style=\"color:#0563C1;text-decoration:none;display:block;cursor:pointer\"><b>P0601<\/b><\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0601-internal-control-module-memory-checksum-error\/\" style=\"color:#1a2b49;text-decoration:none;display:block;cursor:pointer\">Internal memory checksum error<\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0601-internal-control-module-memory-checksum-error\/\" style=\"color:#0563C1\"><b><u>Full P0601 guide &rarr;<\/u><\/b><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0602-control-module-programming-error\/\" style=\"color:#0563C1;text-decoration:none;display:block;cursor:pointer\"><b>P0602<\/b><\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0602-control-module-programming-error\/\" style=\"color:#1a2b49;text-decoration:none;display:block;cursor:pointer\">Control module programming error<\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0602-control-module-programming-error\/\" style=\"color:#0563C1\"><b><u>Full P0602 guide &rarr;<\/u><\/b><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0603-internal-control-module-keep-alive-memory-kam-error\/\" style=\"color:#0563C1;text-decoration:none;display:block;cursor:pointer\"><b>P0603<\/b><\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0603-internal-control-module-keep-alive-memory-kam-error\/\" style=\"color:#1a2b49;text-decoration:none;display:block;cursor:pointer\">Keep-alive memory (KAM) error<\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0603-internal-control-module-keep-alive-memory-kam-error\/\" style=\"color:#0563C1\"><b><u>Full P0603 guide &rarr;<\/u><\/b><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0604-internal-control-module-random-access-memory-ram-error\/\" style=\"color:#0563C1;text-decoration:none;display:block;cursor:pointer\"><b>P0604<\/b><\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0604-internal-control-module-random-access-memory-ram-error\/\" style=\"color:#1a2b49;text-decoration:none;display:block;cursor:pointer\">Internal RAM error<\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0604-internal-control-module-random-access-memory-ram-error\/\" style=\"color:#0563C1\"><b><u>Full P0604 guide &rarr;<\/u><\/b><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0605-internal-control-module-read-only-memory-rom-error\/\" style=\"color:#0563C1;text-decoration:none;display:block;cursor:pointer\"><b>P0605<\/b><\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0605-internal-control-module-read-only-memory-rom-error\/\" style=\"color:#1a2b49;text-decoration:none;display:block;cursor:pointer\">Internal ROM error<\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0605-internal-control-module-read-only-memory-rom-error\/\" style=\"color:#0563C1\"><b><u>Full P0605 guide &rarr;<\/u><\/b><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0606-control-module-processor\/\" style=\"color:#0563C1;text-decoration:none;display:block;cursor:pointer\"><b>P0606<\/b><\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0606-control-module-processor\/\" style=\"color:#1a2b49;text-decoration:none;display:block;cursor:pointer\">Module processor failure<\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0606-control-module-processor\/\" style=\"color:#0563C1\"><b><u>Full P0606 guide &rarr;<\/u><\/b><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0607-control-module-performance\/\" style=\"color:#0563C1;text-decoration:none;display:block;cursor:pointer\"><b>P0607<\/b><\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0607-control-module-performance\/\" style=\"color:#1a2b49;text-decoration:none;display:block;cursor:pointer\">Module performance fault<\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0607-control-module-performance\/\" style=\"color:#0563C1\"><b><u>Full P0607 guide &rarr;<\/u><\/b><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0620-generator-control-circuit\/\" style=\"color:#0563C1;text-decoration:none;display:block;cursor:pointer\"><b>P0620<\/b><\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0620-generator-control-circuit\/\" style=\"color:#1a2b49;text-decoration:none;display:block;cursor:pointer\">Module-internal fault<\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0620-generator-control-circuit\/\" style=\"color:#0563C1\"><b><u>Full P0620 guide &rarr;<\/u><\/b><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p062f-internal-control-module-eeprom-error\/\" style=\"color:#0563C1;text-decoration:none;display:block;cursor:pointer\"><b>P062F<\/b><\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p062f-internal-control-module-eeprom-error\/\" style=\"color:#1a2b49;text-decoration:none;display:block;cursor:pointer\">Internal EEPROM error<\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p062f-internal-control-module-eeprom-error\/\" style=\"color:#0563C1\"><b><u>Full P062F guide &rarr;<\/u><\/b><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0641-sensor-reference-voltage-circuitopen\/\" style=\"color:#0563C1;text-decoration:none;display:block;cursor:pointer\"><b>P0641<\/b><\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0641-sensor-reference-voltage-circuitopen\/\" style=\"color:#1a2b49;text-decoration:none;display:block;cursor:pointer\">Module-internal fault<\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0641-sensor-reference-voltage-circuitopen\/\" style=\"color:#0563C1\"><b><u>Full P0641 guide &rarr;<\/u><\/b><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0645-ac-clutch-relay-control-circuit\/\" style=\"color:#0563C1;text-decoration:none;display:block;cursor:pointer\"><b>P0645<\/b><\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0645-ac-clutch-relay-control-circuit\/\" style=\"color:#1a2b49;text-decoration:none;display:block;cursor:pointer\">Module-internal fault<\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0645-ac-clutch-relay-control-circuit\/\" style=\"color:#0563C1\"><b><u>Full P0645 guide &rarr;<\/u><\/b><\/a><\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0650-mil-control-circuitopen\/\" style=\"color:#0563C1;text-decoration:none;display:block;cursor:pointer\"><b>P0650<\/b><\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0650-mil-control-circuitopen\/\" style=\"color:#1a2b49;text-decoration:none;display:block;cursor:pointer\">Module-internal fault<\/a><\/td>\n<td style=\"border:1px solid #d6dbe3;padding:9px 12px\"><a href=\"https:\/\/www.fs1inc.com\/blog\/dtc-p0650-mil-control-circuitopen\/\" style=\"color:#0563C1\"><b><u>Full P0650 guide &rarr;<\/u><\/b><\/a><\/td>\n<\/tr>\n<\/table>\n<\/div>\n<div class=\"info-section\">\n<h2>Protecting the PCM in Your 2004 Pontiac Montana<\/h2>\n<ul style=\"margin:14px 0 6px 0;padding-left:26px\">\n<li style=\"margin:10px 0;line-height:1.65\">Maintain a healthy charging system to avoid voltage stress on the module.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Inspect and clean all ground connections and module connectors regularly.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Avoid jump\u2011start voltage spikes that can damage electronic circuitry.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Address any diagnostic codes promptly before they worsen.<\/li>\n<li style=\"margin:10px 0;line-height:1.65\">Keep connector seals intact to prevent moisture intrusion.<\/li>\n<\/ul>\n<\/div>\n<div class=\"info-section\">\n<h2>Frequently Asked Questions<\/h2>\n<h3>What are the labor times for replacing the ECM in a 2004 Pontiac Montana?<\/h3>\n<p>Factory labor guides list about 1.1\u202fhours for removal and the same for installation, plus 0.5\u202fhours each for ECM and PCM relearn procedures.<\/p>\n<h3>Do I need special software to program a new ECM in this vehicle?<\/h3>\n<p>Yes, GM requires the Techline software to be current and the procedure to follow a service bulletin; using a VIN\u2011programmed unit removes this requirement.<\/p>\n<h3>Can I program the ECM without the vehicle present?<\/h3>\n<p>Off\u2011board programming is an option, but it should only be performed when directed by a GM service bulletin or procedure.<\/p>\n<\/div>\n<div class=\"info-section\">\n<p>When the ECM fails in a 2004 Pontiac Montana, you can either have it repaired or replace it with a refurbished unit. A Flagship One replacement arrives pre\u2011programmed, which can reduce shop time and eliminate the need for off\u2011board programming steps, letting you get back on the road faster.<\/p>\n<figure style=\"margin:22px auto;text-align:center;max-width:720px\"><img decoding=\"async\" style=\"max-width:100%;height:auto;border:1px solid #e2e6ec;border-radius:8px\" src=\"https:\/\/www.fs1inc.com\/media\/wysiwyg\/googleshop\/gmtypeA\/gm-pcm-typea-1.jpg\" alt=\"Refurbished VIN-programmed PCM for the 2004 Pontiac Montana\" loading=\"lazy\"\/><figcaption style=\"font-size:13px;color:#667085;margin-top:8px\">A refurbished, VIN-programmed replacement PCM for the 2004 Pontiac Montana from Flagship One.<\/figcaption><\/figure>\n<p>Flagship One stocks a <a href=\"https:\/\/www.fs1inc.com\/2004-pontiac-montana-3-4l-engine-computer-pcm-ecm-ecu-programmed-plug-play.html\"><b>refurbished, VIN-programmed PCM for the 2004 Pontiac Montana<\/b><\/a> with a lifetime warranty, free shipping and no core charge. The full <a href=\"https:\/\/www.fs1inc.com\/gm\/pontiac-pcm-ecm-ecu-engine-computer\/montana-engine-computers.html\">Pontiac Montana module lineup<\/a> covers other engine configurations as well.<\/p>\n<\/div>\n<div class=\"info-section\">\n<h2>Final Thoughts<\/h2>\n<p>The 2004 Pontiac Montana\u2019s Engine Control Module is vital for engine operation. Whether you choose a repair or a Flagship One pre\u2011programmed replacement, following the proper procedures ensures reliable performance.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>If your 2004 Pontiac Montana shows no\u2011start or stalling, be aware of cautions about improper programming; proper replacement and VIN\u2011programmed units can restore function.<\/p>\n","protected":false},"author":1,"featured_media":520762,"comment_status":"open","ping_status":"closed","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[258,474],"tags":[50,631,72],"class_list":["post-534687","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-car","category-pontiac","tag-50","tag-montana","tag-pontiac"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>2004 Pontiac Montana Engine Control Module Replacement and Programming Guide - 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