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#1
08-26-2007, 08:11 AM
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2003 Taurus - Unknow Engine Idle Noise
Ford 2003 Taurus:
Background: 52,000 miles Regular maintenance New tensioner pulley & belt Situation: An unidentifiable noise is generated while engine is at idle. The sound does not seem to be originating from the accessory drive (Serpentine belt & tensioner). The tensioner pulley and belt were replaced with no change in situation. Noise: Is an itermittent squeaking sound which may be coming from the topside/backside of the engine. The sound is inaudible when rpms are increased: * There may be a technical service bulletin (#0311) for this problem, but I have been unable to access. * Are there any blowers etc within the air intake or fuel injection system? Last, any assistance would be most appreciated. Serving in Germany with US military with access to a limited capability base service garage. Thank you 
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#3
08-26-2007, 02:05 PM
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Re: 2003 Taurus - Unknow Engine Idle Noise
remove the serp belt, see if the noise goes away. That'll rule out all of the accessories
otherwise, get a stethoscope....best tool for hunting down noises DOHC or OHV?
__________________
life begins at 10psi of boost Three turbo'd motorcycles and counting. 
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#4
08-31-2007, 07:20 PM
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Re: 2003 Taurus - Unknow Engine Idle Noise
I found a tsb about a vibration from the cooling fans but it only occurred when AC is on and outside temp is 80F/27C or above.
but that would be the front of the engine tsb# 03-11-1 the other one i found is a ticking sound coming from the left bank camshaft. use a long screwdriver and check near cyl 6 for the ticking sound. The left bank is the one on the right when looking at the acc belt. cyl 6 is either closer to the acc belt or further away (yeah I can't remember how they're numbered) tsb# 04-20-8 I know neither of these are squeaks but these are the tsb's I found. good luck. one of the things i do is take a can of power lube and start spraying the pulley's of the accesories, not where the belt hits but behind where they are on their bearings.
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#6
09-16-2013, 11:43 PM
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Re: 2003 Taurus - Unknow Engine Idle Noise
Quote:
EDIT: Just noticed how old this thread is. Let it die.
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