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Ford Crown VictoriaThough they were what most people drove in the 1950s and 1960s, full-size cars like the Ford Crown Victoria are now an anomaly. But Ford's biggest sedan still offers significant virtues, including affordable V8 performance and room for six people. Today, the Crown Victoria's passenger and cargo volumes compare favorably against fashionable SUVs.
Ok guys, put your thinking caps on.... or maybe you already know what the problem is. I'm going to try my best to explain the noise and maybe someone here can help.
I've got a 2001 Crown Vic P71. Just recently I noticed a noise that sounds like it's coming from the front of the engine. It sounds like a "rattle", the kind of noise typically associated with a bad idler bearing (either stationary or tension). However, I removed the belt and the noise was still there. It's not a "lifter" kind of noise and it sounds more like it's down lower in the engine. More like a "Chain" rattling around .. it's got 141,000 mi. on it. The noise seems to quite down after it warms up.
Anyone got any ideas???
Thanks!
Get ready for the 351 boss build this summer, 4v closed chamber heads, 2.25/1.75 valves, .750 lift, 12.5:1 piistons, wieand tunnel ram, nitrous, I think its gonna roar!
Try using a mechanic stethoscope to probe the timing chain cover for noise. It might help to remove the belt to eliminate some noise. The timing chain tensioner or guides might be a possibility. I would try pin pointing the noise first. If you don't have a stethoscope, a long screw driver may work instead.
Thanks guys, ... Yep, timing chains and tensioners. It had developed an oil leak at one of the cooling line hoses. Oil level got a little low (just enough to allow a drop in oil pressure) and the tensioners lost some pressure as well. I'm sure that is what caused the problem because even after changing the oil & filter the noise was still there just not as bad.
Thanks for your input. ... Oh and by the way, even the stethoscope didn't really pin point the noise.
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P71 Engine Rattle 
Linear Mode
