Question about Chevrolet S 10

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I have a problem with a chevy S10 blazer 4.3L CPI (VORTEX) 4x4. I have changed the MAP sensor Coil Spark plugs Spark plug wires fuel filter and battery. The fuel pump works fine and it rolls over. When it does start it will stall within 5 mins unless you keep accelerating. Can't find out the problem. No engine codes either.

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Most likely will have to remove the intake, and replace
the pressure regulator and spyder poppet/assy

Are the spark plugs wet & a gas smell ?

Posted on Mar 23, 2011

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I would start checking crank sensors and cam position sensors. There may be codes present that are not readable by over the counter OBD scanners. To get the real low down on the problem, the vehicle needs to be hooked up to a MODIS scanner. Otherwise you are going to rack your brain and your pocket trying to figure it out. Especially if it's intermitent. There are just to many possibillities with all the modules and sensors that are in place these days.

Posted on Mar 23, 2011

  • nahte806 Apr 08, 2011

    Try cleaning the throttle body with throttle body cleaner(butterfly) , i've had a few complaints similiar to this before at work. Remove the tube from the air filter box to throttle body. Spray cleaning inside while opening and closing the butterfly with the throttle cable.

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