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Sudden power loss at 5000 rpm. Got me stuffed... 


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 Post subject: Re: Sudden power loss at 5000 rpm. Got me stuffed...
Posted: Thu Mar 29, 2012 8:23 pm 
Stock as a Rock
User avatar

Age: 44

Posts: 117

Joined: 16th Apr 2005

Gallery: 9 images

Ride: ED Fairmont Ghia 5.0L

Location: Brisbane
QLD, Australia

This turned out to be the 3.5" silicone intake elbow collapsing right on 5000 rpm. The thing popps back out after i lift off the accelerator.
I have been chasing this fault for a while, and it suddenly hit me as to what it was. Can't believe I missed this before.
I had changed my S5 solinoid, trans fluid and filter, my trans inhibit switch, my speedo sender, added an MSD tach adapt and changing out my distributor along the way.
I also did all this after getting a code reader (too lazy to use a bridge and light any more) and sorting my faults out along the way.
Whilst fault finding I also exerimented with locked timing by disconnecting the SPOUT wire.
So a bit of a journey, but glad to have found the problem.
I have hose clams around the elbow to stop it collapsing until I can change it out, but it seems to work as i pretty much shat myself past 5k rpm.
Thanks to everyone who had input into this.
Much appreciated.



ED Fairmont Ghia.
306ci, Pro-m 80 MAF & #42inj, Kirban AFPR, Walbro 255LPH intank & inline, BBK 70mm, Ported Edelbrock #60399, Ported Explorer, Crane 2031 & YT1.72, MSD 6AL, paciemaker tri-y, 2.5" cats into single 3". H/D stall. 3.45 lsd, Powerdyne XB1A.

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