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https://yabb.autonerdz.com/cgi/yabb2//YaBB.pl General Public Area >> PicoScope >> bucking winstar https://yabb.autonerdz.com/cgi/yabb2//YaBB.pl?num=1346643068 Message started by fordman on Sep 2^nd, 2012 at 7:31pm

Title: bucking winstar
Post by fordman on Sep 2^nd, 2012 at 7:31pm

3.8 v-6 engine winstar with a bucking like shutting key on and off,cam sychronizer chattering causing mutiple cam signals

https://yabb.autonerdz.com/cgi/yabb2//YaBB.pl?action=downloadfile;file=bucking_winstar_cam_sychronizer_chatter.psdata (24 KB | )

Title: Re: bucking winstar
Post by fordman on Sep 5^th, 2012 at 8:40pm

new waveform format

Clipboard06.gif (68 KB | )

Title: Re: bucking winstar
Post by fordman on Sep 5^th, 2012 at 8:45pm

getting the size correct

Clipboard06_7.gif (44 KB | )

Title: Re: bucking winstar
Post by fisher on Sep 5^th, 2012 at 10:49pm

So zooming in on one switch from high to low you see there were multiple times a threshhold may have been crossed (voltage) that will have triggered a response (although incorrect) from the ignition module, ECM.
I wonder what that is?

Title: Re: bucking winstar
Post by fordman on Sep 6^th, 2012 at 2:28am

cam sychronizer caused this it was worn and chattering to cause this concern

Title: Re: bucking winstar
Post by fisher on Sep 6^th, 2012 at 6:36am

Thanks fordman, I looked it up; I was confused... it fits where a distributor otherwise might...here's a photo for the sake of others reading this...

Ford_cam_sychronizer.jpg (16 KB | )