V6 (1994-2004) Mustangs Technical discussions on the 3.8L and 3.9L V6 torque monsters

what wrong with my car???

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Old 04-02-2008, 04:05 PM
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alfredov6
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Default what wrong with my car???

will a cracked header cause the "service engine soon" light to come on and make a ticking noise?
i have an 02 with stock headers
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Old 04-02-2008, 04:12 PM
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BeachStang04
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Default RE: what wrong with my car???

Light ticking or a heavy ticking?! Could be valve tap.
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Old 04-02-2008, 04:18 PM
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v6stang07
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Default RE: what wrong with my car???

if u are sure that you have a cracked header im sure thats what it is and it could possibly cause a cel
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Old 04-02-2008, 04:40 PM
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LilRoush
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Default RE: what wrong with my car???

Find out what code you are throwing... that will tell you what's going on.

Yes a cracked header will trip it. It's allowing air out prior to the 02 sensors... so your car isn't reading your exhaust gas air/fuel ratio correctly and trying to adjust for it... most likely thinking it's lean, so dumping in too much fuel - resulting in a rich condition. (Ironic, I know).
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