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Power Strokes
7.3 Aftermarket
bad idle when hot
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[QUOTE="V-Ref, post: 358484, member: 660"] [b]Injector Breakout Box directions[/b] [URL="http://www.thompsondrywasher.com/ibb.pdf"][B][U]http://www.thompsondrywasher.com/ibb.pdf[/U][/B][/URL] As Tom S posted..these things are a great tool to isolate cylinder specific issues. FWIW-My truck when it get's to doing it's romping thing, sounds EXACTLY like yours, but to a lesser extent. So your not the only one! It's also intermittent/inconistent and isn't correlated with post hard run, warm vs cold, etc... My latest tactic has been to use [B][U][URL="http://torque-bhp.com/"]Torque[/URL][/U][/B] and this [URL="http://www.scantool.net/obdlink-mx.html"][B][U]BT dongle[/U][/B][/URL], to "catch it in the act", and to see if I can grab a PCM parameter that will highlight the issue. In my truck, ICP/DC is definitely correlated with the Romp. AE does or another scanner can do the same thing...this is just convienent mechanism for me to do this. Don't want to steer you off track...as my issue is intermitent/inconsistent, and doesn't quite shake/romp to the extent yours appears to be...but didn't want you to pull VCs, and try UVCHs, ICP, IPR, CPS, Inj O-Rings, crush washers, etc only to find out that didn't fix it. Unfortunately, I'd say at a minimum you need to pull the VCs and do a compression test, just to make sure you don't have an issue there....if so then pull injs if you see a out of whack number on those holes. I'm on the fence right now if in my truck it's just a limitation I need to live with, or there's something mechanical I've missed. Tuning can play a role, but it seems to mask the issue, not fix it. I provide all the above on my truck/issue for perspective on your truck. It's easy to log in here, and create an ideal standard for your rig, and then struggle applying it to your truck in the real world. Lots of good info/fellas here though, that want to see your truck running right....but be sure to temper the counsel you recieve, and keep in mind it is an internet forum. I'm interested in what solves this for your truck. Good luck. [/QUOTE]
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