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Why does my 2004 Suburban go into engine protect mode when we use the cruise control?

rstone3rstone3 Posts: 1
edited January 2015 in Chevrolet
When we use the cruise control on our 2004 Suburban it will go into engine protect mode. Sometimes you can run for a long time and others just a few minutes. We have replaced the throttle body and the wiring for the throttle body but it still happens. After you turn the car off for a few minutes it starts and runs fine but dont use the cruise control.Where do I start to look for the issue?

Answers

  • ray80ray80 Posts: 1,655
    I assume by engine protect mode its the 'reduced engine power' thing? I believe it can happen for number of reasons and it needs to be scanned to fin out which one your vehicle is experiencing. Some where or other I have also seen where code goes missing after restart so its necessary to limp it to dealer when it happens so they can scan it before its shut off
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