Another Engine Shudder
#1
Another Engine Shudder
So the last few days I have been having a weird shudder from my engine at low rpms (800-2500ish). It only happens when I am idling at a light, and when I start to accelerate (especially under more load). It is not constant, but and different times the engine will shake once, and kind of pop like it didn't fire on one cylinder, or backfired. When it does it under acceleration, the car hesitates and almost feels like it wants to die, sometimes even "bucking" a tiny bit. It is winter here in Utah, so I'm almost positive it isn't the heat soak bucking I have heard about. My car is a 2000, on its second engine, with a berk 3" cat back, and an AEM cai. Also, I don't know if this is related, but the cat on it doesn't work, so an 02 simulator was installed. I searched around, but so far have not found a problem that sounded exactly like mine that someone else experienced in the forums.
#2
Here is a video of how it sounds at the moment. Its not making the popping, and hesitating like it was, but it does sound really "mushy." Im going to go check the coils and spark plugs just to be sure.
https://www.youtube.com/watch?v=PENdkABu82A
https://www.youtube.com/watch?v=PENdkABu82A
#3
Is the cat broken internally ?, that will certainly cause issues.
#5
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