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The power steering system has two main components - the hydraulic pump and the hydraulic ram. The pump is driven by a belt situated on the front of the engine, so if you heard a noise at start-up, the chances are that something went bang around the pump area, maybe the drive belt or a broken pulley. Locate the pump and do a visual to see if you can identify a problem there.
It is very unlikely that the ram would have a problem, or at least a sudden problem as the one you are describing.
If the fan is attached to the water pump tahe hold of a blade and try back and forward towards the motor. If there is movement there it will be either a fan hub failing or a water pump bearing. Second check remove the fan belt and check for noise.( idle engine for short period of time) If it is gone confirm pump by spinning any adjuster pulleys and check for noise or rough movement
If the rattling changes with the revs of the engine, it might be that the valve compensators are either worn or not getting enough lubrication. 20V engines have quite small oil passages travelling to the head. They tend to clog up with gunk if the oil change is not frequent enough.
the damper could be bad if it's the type with the rubber inbetween the pully and the the rest of the damper. check that and see if it is separated. if not looks like your crankshaft bearings could be bad
Hi.
I think the problem is the power take off for the front fan ,steering etc. Underneath the middle of the car you will see what looks like a small propshaft pointing towards the front with a doughnut shapped mounting bolted to each end. These rubber joints wear and rattle on tick over or low revs cost is about £40 for the 2 from Japarts
Takes about 2 hours to change.Hope this helps Good luck
Don't know if this helps. Had squeel in belt area. Occasionally engine would stop when squeel got loud and sometimes engine would try to quit while going at various speeds. Found tensioner pulley was bad and changed it. Still squeeled and engine would stop when squeel got loud. This time while sitting in yard. Further checking found binding in power steering pump. Will be putting on new one tomorrow. Hope it works. Will update.
Check under the hood and try to ID the noise, check anything that moves, water pump, power steering pump, AC compressor and so on, a broom stick held against the suspect noise area helps to pin point the problem.
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