Question about 2000 Chevrolet Blazer
I have a blazer with 175k miles, I had a fuel pump issue about 1.5 months ago, I replaced the pump, and fuel filter, and the fuel pressure regulator. I also replaced some vacuum plumbing from the top because it was disintegrating. The truck starts great, and if I leave it warm up it will run OK. I've made long highway trips (80 miles) without issue. On occasion, when I try to accelerate too quickly, it feels like a "pop" then it gurlges and sputters and cannot develop any power. I turn off the ignition for about 2 minutes, re-start the motor and usually she behaves. I have a code for the MAS and an O2 sensor, and I am going to try to clean the MAS before replacing it. I will replace the O2 sensor regardless. I love the vehicle, but I don't want to pump money into parts that do not need to be replaced. Thoughts?
What faults codes are in memory? If you haven't yet tested the system do so.
Posted on Jul 17, 2013
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Posted on Jan 02, 2017
If this engine is a VORTEC then you may have a problem with the internal fuel system. Under the top plenum there is a fuel reg and poppet valves that inject fuel into the cylinders. Sometimes the tubes that run fuel from the reg to the valves can leak and cause your problem. This cannot be found with pressure check because this occurrs after the reg. PS fuel mileage will go down. Let me know if this helps.Moe
Posted on May 26, 2009
Have you tried replacing the filter and power steering fluid? also that is a year were some had the hydrostatic steering pump and if a check valve is leaking it would or could cause your problem. And it would be only when you were going to turn, since in the straight forward position there is little Resistance to the power steering pump.
Posted on Jun 16, 2009
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