Question about 2002 Chevrolet Avalanche

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Suddlenly shuts off


I'm driving on the freeway, or the city, and my 2002 avalanche suddlenly shuts off. Sometimes it shuts off when I stop at a light or stop sign.

The best way I can explained it is that hen it shuts off it feels like suddlenly stoo getting gas, it is like a "puff" small feeling and the power light turn to turn and lock my sterring wheel and the only thing I can do is to use the little speed I have to pull over, and if I'm at a stop sign or light, I just turn on my emergency lights and wait.
It takes 3 to 5 minutes for the truck to re-start again. The mechanics don't have any idea what it is. Every time they test the truck and drive it around, the truck does not shuts off. But it does it to me at least twice a day, after the truck is been parked for a couple of hours.
Any suggestions

Thank You

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  • yadayada
    yadayada May 11, 2010

    what trouble codes do u have?

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  • 64 Answers

My eclipse did that. It was the fuel pump. It finally just died one day and wouldn't start back so i would go ahead and replace it.

Posted on Jun 24, 2009

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I ask a question on what is the drive cycle to reset obd for toyota2005 rav4


Step One: How to Prepare Your Vehicle
  • Have the fuel tank between 30 and 70 percent full. Some systems, especially the EVAP system, need to have a specific level of fuel in order for the tests to be trusted. If the fuel tank is near empty or completely full, many of the basic tests will not run at all.
  • The vehicle must also have a good alternator and a strong battery. If you have to occasionally jump-start your vehicle, all of the memory from the powertrain control module (PCM) is erased, which includes the data that accurately tracks the results from various stages of the Drive Cycle. Also, if the battery is weak or undercharged, some of the most important tests will never run.
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Step Two: The Cold Start
  • Start the vehicle and let it idle for two to three minutes in Park or Neutral. While it is idling, turn on the head lights, heater/defroster, and rear defroster for a three to five minute warm-up phase. Let the idle speed settle down to near the normal speed.
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Step Three: A Short Freeway Trip
  • After the vehicle has been cold started and driven for a few miles on city streets, the next step is to take it on a short freeway trip.
  • Enter the freeway on-ramp and allow enough room with respect to other vehicles so that you can do a 1/2 to 3/4 throttle acceleration up to freeway speed.
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  • Find a nice, long off ramp to exit from the freeway. As you exit, take your foot off of the accelerator and let the vehicle coast down until it stops under its own power as you complete your exit from the freeway. Do not use the foot brake and do not shift gears until the very end of this "coast down" phase.
  • Step Four: More City Driving
    • After you have completed the freeway trip, drive through the city streets for a repeat of the second part of Step Two.
    • Go up to about 35 to 40 mph a few times and then maintain a city speed of 25 mph before slowing down to stop. Again, don't roll through the stop and make sure to accelerate normally.
    • Pull in to a parking place and let the engine idle for one to two minutes and then shut it off.
    Step Five: Have your Readiness Monitors Checked and Verified
    • Drive your vehicle to your regular shop and have them re-check your readiness monitors, present codes, and pending codes. They should do this as a courtesy and for free.
    • If all of your monitors are "ready" and there are no present or pending codes, then your vehicle has been properly repaired and is ready for an emissions inspection and for normal driving.

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  • Pull in to a parking place and let the engine idle for one to two minutes and then shut it off.
Step Five: Wave your Readiness Monitors Checked and Verified
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  • If all of your monitors are "ready" and there are no present or pending codes, then your vehicle has been properly repaired and is ready for an emissions inspection and for normal driving.
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How to Perform a Basic Drive Cycle


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  • The vehicle must also have a good alternator and a strong battery. If you have to occasionally jump-start your vehicle, all of the memory from the powertrain control module (PCM) is erased, which includes the data that accurately tracks the results from various stages of the Drive Cycle. Also, if the battery is weak or undercharged, some of the most important tests will never run.
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  • Enter the freeway on-ramp and allow enough room with respect to other vehicles so that you can do a 1/2 to 3/4 throttle acceleration up to freeway speed.
  • When you have accelerated up to around 60 mph and have safely merged into the flow of traffic, stay in the slow lane and maintain a steady speed of 55 to 60 mph for a minimum of five miles. Please use the cruise control to help you maintain speed.
  • Find a nice, long off ramp to exit from the freeway. As you exit, take your foot off of the accelerator and let the vehicle coast down until it stops under its own power as you complete your exit from the freeway. Do not use the foot brake and do not shift gears until the very end of this "coast down" phase.
Step Four: More City Driving
  • After you have completed the freeway trip, drive through the city streets for a repeat of the second part of Step Two.
  • Go up to about 35 to 40 mph a few times and then maintain a city speed of 25 mph before slowing down to stop. Again, don't roll through the stop and make sure to accelerate normally.
  • Pull in to a parking place and let the engine idle for one to two minutes and then shut it off.
Step Five: Wave your Readiness Monitors Checked and Verified
  • Drive your vehicle to your regular shop and have them re-check your readiness monitors, present codes, and pending codes. They should do this as a courtesy and for free.
  • If all of your monitors are "ready" and there are no present or pending codes, then your vehicle has been properly repaired and is ready for an emissions inspection and for normal driving.
  • If your monitors are not ready, please click here for more information.

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