I have a 2002 blazer. While driving to work one day, I noticed I couldnt get past 70 mph. As I continued driving the rest of the week, my speed and power loss was declining rapidly. 70 mph, then 50 mph, 40 and now I cant get it to 25 mph. While driving, the engine would cut out, and jerk. The engine starts right up, no prblems. The engine boggs down when I push on the accelerator.( Misfires, engine shakes) The rpm gauge gets to 1500 rpm and it sounds like a sucking air type noise, and when I push the accelerator further, the engine rpm stays the same or will decrease, even when accelerator is pushed more than half way, with alot of noise coming from the engine. Ive hooked up dianostics, and when it gets to the part where it says 7 ready(or it should) it reads evap, o2 sensor catalyst incomplete. Ive replaced spark plugs, checked rotor cap, (its fine) plug wires, replaced fuel pump, fuel fliter, map sensor, and cleaned mass air flow sensor. The more I try to run the engine, the worse it becomes daily, engine power, ect. Now I cant even drive it down the road. I barely push on the accelerator and it boggs right out, idle becomes very rough, but it doesnt stall. HELLPPPPP
Saturday, May 23rd, 2020 AT 12:19 PM
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