Question about 2004 Buick Rainier

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My 2004 Buick Rainer sometimes accelerates on its own almost causing me to get into an accident. Also when I drive it for longer than an hour speedometer stops working. And I have noticed a surge in power????

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  • 172 Answers

Take it to your GM dealer to see if there is an outstanding recall on this issue. I could be something as simple as a vacuum leak or a bad cruise module. I wouldn't wait on that problem.

Posted on Apr 15, 2015


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Posted on Jan 02, 2017

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SOURCE: 2006 buick lacrosse - speedometer stopped working properly

Sounds like you need to replace your speedometer cable that runs from your dash to your transmission.

Posted on Dec 15, 2012

SOURCE: Speedometer stopped working while driving - no longer registers

This has happened on our van multiple times. Through some internet searches I have found a solution that works.

Go to your van and, with the ignition off, press and hold the trip reset button. You will see 'Sof' and perhaps some diagnostic test numbers will show up on odometer; the unit will perform a self-test, and the system will do a reset and should it should operate normally.


Posted on Jun 02, 2009

  • 104 Answers

SOURCE: 2004 stratus 2.7L Erratic idle, sometimes dies, sometimes revs at stops

hey-I have has this before different car but same - idle control valve is failing - computer at shop will pick this up on diagnostic

Posted on Oct 12, 2008

  • 753 Answers

SOURCE: 2000 buick regal surges under slight acceleration.

Check for a engine misfire corroded plug wire ends or coil tower,cracked spark plug,bad plug wire.

Posted on Aug 25, 2009

  • 1280 Answers

SOURCE: accelerator has surged many times, sometimes while

Did the 'Check Engine' Light come ON? Whenever the 'CHECK ENGINE' light comes on, the ECU (Engine Control Unit) sets a Diagnostic Trouble Code (DTC). These codes identify the particular engine management system which caused the light to come on. You'll need to use/find an OBDII (On-Board Diagnostic) Scanner to retrieve any code which have been stored in the ECU computer. Afterward, we might be able to help you DIAGNOSE and perhaps eventually fix the problem.

Posted on Oct 18, 2009

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Related Questions:

1 Answer

Is there a recall on the transmission in a 2004 Buick Rainer

Please contact any local GM car dealer with the VIN of the car, they can quickly look it up if there is. But I know of no recall for the 2004 model year that deals with the transmission.

Jan 10, 2017 | Buick Cars & Trucks

1 Answer

When I drive my 2004 Buick Rainer for more than an hour my speedometer stops working. I have also noticed surges in power. And last but not least sometimes it excelerates on its own. I almost got into an...

Did you take it an have it checked for DTC'S - diagnostic trouble codes ? is the check engine light lit ? Have you seen any messages in message center ( if yours has one ) reduced engine power ? Your vehicle is very electrified , electronics galore ! Control modules for everything , you vehicle has electronic throttle control , if you know what that is . Your going to need to take this to the repair shop where they have the tools an know how to diagnose it !

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How do you reset the check engine light on 2004 Buick Rainer

most auto parts stores can scan it 4 you and reset or u can unhook the negative battery cable for few hours

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The Headlight are automatic, try the turn signal switch.

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It is on the front of the engine just off the crankshaft harmonic balancer pulley. The sensor is triggered by the crankshaft pulley rotation, it is a magnetic sensor called a "HALL" effect sensor.

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Fig. Thermostat mounting-4.2L engine

Hope helped with this (remember rated this help) Good luck.

Nov 04, 2009 | 2004 Buick Rainier

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My speedometer whines

Pretty common problem with these. Here's a guide to learn how to fix GM instrument clusters yourself, I used it to fix mine and it worked great.How to guide for Rainier instrument cluster repair

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