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Old 07-03-2008, 01:28 AM   #1
XcesiveSlyd
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Exhaust heat shield.

Can the exhaust heat shield be removed, and the car be driven without any negative side effects? The heat shield is cracked at all mounting points on the ZX3. It makes a constant rattling noise. The vehicle is a 2002 ZX3 with 2.0 Zetec. It is all stock. Thanks
-Chris


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Old 07-03-2008, 09:45 AM   #2
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> The heat shield is cracked at all mounting points on the ZX3. It makes a constant rattling noise.

Try securing it in place with a giant stainless steel hose clamp.
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Old 07-03-2008, 10:14 AM   #3
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the under body shield? mine was the same way. I removed a big section that was all rattling. haven't had a prob.. been that way for a long while
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Old 07-03-2008, 10:49 AM   #4
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If you are talking about the header heat shield under the hood, then you need to leave it where it is unless you plan on heat wrapping your exhaust headers. There is a power steering line that goes right over top of the header and if you were to remove the heat shield, the power steering line will melt over time and is very expensive to fix (or so I've heard).
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Old 07-03-2008, 11:39 AM   #5
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^^^ naw... he'd be fine. my p/s line only blew because the svt header i got was too close to the line. his stock manifold will gradually cause the paint on the ps line to flake off over time, but he could wrap the line with something to prevent the heat... but wrapping a stock manifold would be pointless and prob difficult too.
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Old 07-03-2008, 01:27 PM   #6
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I ran mine for over a year with no problem. Paint was already flaked off anyway. I've now got a 4-2-1 header with nothing on it at all. Been that way for over 6 months now.
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Old 07-03-2008, 01:41 PM   #7
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As far as insulating heat try wrapping the said lines in aluminum foil making sure that the shinier side is on the outside facing the heat. This will reflect a lot of heat away from the part. I had to do this on my D-tec to protect the fuel lines right over the header and the O2 sensor wires.
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Old 07-03-2008, 01:46 PM   #8
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Conflicting opinions..... Seems safe enough. What kinds of temps. should be at the stock header during daily driving? I'll prolly just end up doing something like jetrinka says and applying some kind of temporary protective cover that doesnt rattle.
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Old 07-03-2008, 04:13 PM   #9
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> Conflicting opinions..... Seems safe enough.

Just remember... auto companies like to pinch pennies and do not put additional parts and cost into a vehicle unless they really feel it is necessary. If there wasn't a good reason for it to be there, it would be gone as a cost savings item. A long time ago when I worked at Ford in Product Planning, I remember being in a few of those cost reduction meetings, e.g., eliminate the horse emblems on the interior door panels of the Mustang to save $0.74 per vehicle, reduce the thickness of the brake pedal to save $0.14 per vehicle, secure the "A" pillar trim with two screws instead of three to save $0.12 per vehicle (including labor), etc.
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Old 07-03-2008, 04:54 PM   #10
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With all do respect penguin, I don't consider loss of P.S. a life threatening problem. I've lost P.S. in all of my P.S. equipped vehicles at least a few times in sticky situations. ;^) I am more concerned with fire/overheating issues. I do understand the point you are making and will take it into consideration.
-Chris.
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