Problem cold starting

2005 BUICK TERRAZA
187,000 MILES • 6 CYL • 2WD • AUTOMATIC
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BRYANTHERRIEN2015
  • MEMBER
  • 3 POSTS
When trying to start, the van will start, then shut off, unless you tap the accelerator while starting. Sometimes the starter will actually hang up and continue turning over after the van is already running. I have tried to clean the mass airflow sensor, but am not sure how to remove it from the housing. Any help or suggestions will be greatly appreciated.
May 12, 2019 at 3:20 PM
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STRAILER
  • ✓Experienced Mechanic
  • 55,579 POSTS
Hello,

It sounds like the throttle body needs to be cleaned, disconnect the battery before you begin. here are two guides to help us fix the problem:

https://www.2carpros.com/articles/throttle-actuator-service

and

https://www.2carpros.com/articles/engine-cranks-excessively-before-starting

Please run down these guides and report back.
May 14, 2019 at 4:14 AM
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