richter1978
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- jax fl
My1985 m1009 which I've now had for a year makes a metallic buzzing sound somewhere between 900-1400 rpm (a guess with no tach) in park N and 1-3. At idle it will sound more like a chain clanking. I have searched for and found good things to check. I checked the flexplate and bolts, found no cracks or loose bolts, tightened starter heat shield, rebuilt IP, rebuilt injectors. Vehicle runs great otherwise. Under the hood it sounds like the noise might be coming from left side alternator/power steering/valve cover. I'm not sure if any one of these can make a noise like this. Before the IP rebuild I was convinced that it was making the noise.