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Cobra Forums
The Terminator
Engine/Tuning
Loose Valve seat issue's
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<blockquote data-quote="Gearheadz" data-source="post: 10128300" data-attributes="member: 90429"><p>:dw:</p><p>and i know they all have blue paint on them. was you a service tech getting paid to test drive them, and then bring them into service and replace the driver side head, right after doing a PDI on one right as they came off the truck? i know many who have tho. </p><p></p><p>funny ford has a tsb for the same issue on the 5.4 truck motors as-well.</p><p></p><p>.</p><p></p><p>and funny how the same tsb covers the 03-04 mustang with the dohc engine huh.</p><p>but since ford knows they have a problem with loose fit exhaust valve seats, i guess its just a over heating issue huh. please, i have replaced a ton of heads on the 5.4 navi myself, and know there is a issue. just never seen alot of cobras doing it while at the dealer. but i did see a few mach 1's do it.</p></blockquote><p></p>
[QUOTE="Gearheadz, post: 10128300, member: 90429"] :dw: and i know they all have blue paint on them. was you a service tech getting paid to test drive them, and then bring them into service and replace the driver side head, right after doing a PDI on one right as they came off the truck? i know many who have tho. funny ford has a tsb for the same issue on the 5.4 truck motors as-well. . and funny how the same tsb covers the 03-04 mustang with the dohc engine huh. but since ford knows they have a problem with loose fit exhaust valve seats, i guess its just a over heating issue huh. please, i have replaced a ton of heads on the 5.4 navi myself, and know there is a issue. just never seen alot of cobras doing it while at the dealer. but i did see a few mach 1's do it. [/QUOTE]
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