i have a 96 olds that has multiple probs right now and i am trying to diagnose and fix them one at a time but not completely sure i am starting at the right spot. it has a coolant leak. not sure if its intake or head but it has been leaking for 10 months now. well what i am trying to figure out right now is it has intermitten chatter. cant tell if its injectors or lifters. at an idle with a stethescope we have listened to the engine and cant determine which is causing the noise. if i rev the engine up to 3000rpm it sounds more like injectors because it starts sounding like a sewing machine as compared to a heavy rattle that would be expected from lifters. can really hear the noise from the [plenum] if thats the right word. might be called the top intake, not sure of the proper name. also when its chattering it runs like crap. will barely pull itself. have to floor it to get it going. when its running decent in park i can floor it and it will act like it has a govener on it. it cuts out at 4000rpm drops to 3000rpm kicks back in to 4000rpm and cuts out and so on. i am wondering if this is all related and what might cause any of this to happen ?? any advice will be greatly appreciated !!
thanks
ron
thanks
ron
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