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crawdaddy
11-30-2008, 08:33 PM
Hello..i am the new owner of a 98 red cobra convt...my question is that it has a hesitation when the throttle is opened up ...afterwards it runs just fine...can anyone tell me why this happens and is there a fix for it?? thanks Dave...looking forward a cobra can supply :D

cobrabitn
11-30-2008, 08:47 PM
It's probably your IMRC plates needing a good cleaning. :thumbsup:

SuperG
12-01-2008, 03:41 PM
I believe you are feeling sticky butterfly's opening...the actuator opens the butterfly's somewhere around 3200 rpm's, so what Tony mentioned happens to be written up:
http://www.svtmustangcobraclub.com/media/pdfs/tech/IMRC_Cleaning.pdf

Some dood in the club wrote...

And here is another regarding the actuator:
http://home.flash.net/~ivc1/cobra/imrc.html

crawdaddy
12-02-2008, 08:50 PM
WOW thank u 2 guys for all the info...and it looks like a project I can handle....have U ever used a product called..SEA FOAM... a guy at work says that it is great for cleaning up the internals of an engine....anyway THANKS again...C-Ya later

SuperG
12-03-2008, 12:43 AM
Yes, I have used it...it's pretty cool!! And it works!