I have a1995 buick riviera 3.8L none turbo, I started to hear a clattering noise in and around the crank pully, if I idol up quickly it goes away for a short time, but I know can move the serpentine belt and all the pullies with the engine off not quit a 1/4 turn, is there a clutch system with the crank pully going out
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you have what they call a 1.5 OBD
very few code readers will work.
might try a dealership? I take mine to a local college and they have a $10.000 scanner that does work.
Your flywheel may have broke or the crank could have broke. If the crank broke the engine is done. Try to turn the engine over by hand. You can put a socket on the crank pully bolt and try to turn it.make sure the key is off and out of the ignition. Sorry for your loss.
1995 riviera is not turbocharged; it is supercharged--big diff; if the noise sounds like rocks tumbling, then you need to replace the plastic coupler in the supercharger; part is cheap -;labor is a lil high; it is a pain because you have to remove the alternator bracket on the buick version of the 3.8
there is an a ideler pully that is at the very bottom on the engine u have to move that and put the belt on there i think if u put it on the super charger first then the powersterring pump
1991 Buick Rivera only came with a 3.8L engine known as the 3800
The crank sensor is behind the Harmonic balancer / Crank pully. Special tool required to remove pully without damageing it. once pully is off the crank sensor is held inplace by 2 bolts.
Possibly a leaking hydraulic lifter. They can leak down while engine isn't running and then make a ticking noise for a while on startup. If it takes 10-15 minutes to go away, it is more likely to be a loose tappet which needs adjusting.
I would have you oil pressure checked. The oil pump or bearings could be going out. The lifter noise on this car usually will go away faster then 5 minutes. I think the noise is lasting a little to long.
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