Engine

1998 FORD COBRA
90,000 MILES • 4.6L • V8 • RWD • MANUAL
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MITCH RITCHIE
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I have had a few 1996-1998 Cobra's with the IMRC 's, at 3250 rpm you can normally feel a slight hesitation as the IMRC opens. How can I tell they are opening, opening all the way, if all are opening, or a cleaning is needed?
May 1, 2017 at 9:39 PM
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HMAC300
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  • 48,601 POSTS
check for the normal stuff binding cable, vacuum leaks fuel pressure and quality as it may be running regular gas. I am assuming you have done checks in picture but if not try them.
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May 2, 2017 at 6:34 AM