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Old 02-27-2007, 10:45 PM
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Question?
Loud thicking noise form the engine? What might it be?
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Old 02-27-2007, 11:24 PM
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Could be a variety of things. Ticking valves is the first thing that comes to mind.
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Old 02-27-2007, 11:46 PM
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probably the oil pump
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Old 02-27-2007, 11:48 PM
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Have you run lower octane gas recently? That can cause knocking in vehicles designed for 91 octane + like ours.
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Old 02-27-2007, 11:50 PM
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aren't the Xs protected by anti-knocking technology? or is it model and year specific?
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Old 02-28-2007, 09:02 PM
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Quote:
Originally Posted by Wpcmac
Have you run lower octane gas recently? That can cause knocking in vehicles designed for 91 octane + like ours.
Nope....will bring it in tomorrow to have it looked at....will let you all know. Lucky its still under warranty.
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Old 03-08-2007, 11:07 PM
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The X just returned after 5 days at the shop.....exhaust side cyl #1 collasped....replased crankcase vent valve, replaced both intake and exhaust cams, cam carrier and hydraulic lifters.

Lucky me all under warranty.
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Old 03-09-2007, 06:27 AM
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Good lord, that's a new one on the board I think.
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Old 03-09-2007, 01:50 PM
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How many miles and what year?
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Old 03-09-2007, 02:13 PM
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You mean the cylinder in the block collapsed, or part of the cam? Did they say what they thought caused it?
Yowzers! Sounds expensive. Glad you didn't have to pay for it.
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