full throttle stumble
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Cargo Master
Joined: Apr 2006
Posts: 2,153
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From: Concord NC
full throttle stumble
what will cause a high RPM miss or stumble. this only happens on acceleration.
my mods are BTS dual HPOP,injectors,H2E turbo,DP Tuner,6637 filter, external reg fuel system,fuel bowl delete,BTS trans. these are the major mods,could any of these cause the high end full throttle stumble?
my mods are BTS dual HPOP,injectors,H2E turbo,DP Tuner,6637 filter, external reg fuel system,fuel bowl delete,BTS trans. these are the major mods,could any of these cause the high end full throttle stumble?
Post Fiend
Joined: Feb 2007
Posts: 14,541
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From: Dallas-Ft. Worth
You've eliminated the HP oil problem with the dual-HPOP, you have an excellent tuner, a big-dog turbo, and big injectors (I guess -- which ones do you have?). The only thing I could think of that might cause it is a bit of fuel starvation. Do you have a completely upgraded system from the tank to the heads or is some of it stock? Is it tossing any codes? Any smoke?
Joe
Joe
Post Fiend
Joined: Feb 2007
Posts: 14,541
Likes: 2
From: Dallas-Ft. Worth
Nah Ron... He's got after-market injectors.
Originally Posted by MAKO314
my mods are BTS dual HPOP,injectors,H2E turbo,DP Tuner,6637 filter, external reg fuel system,fuel bowl delete,BTS trans.
Post Fiend
Joined: Jun 2006
Posts: 9,714
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From: White Mnt's,New Hampshire
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Cargo Master
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From: Concord NC
I changed the oil and filter and the problem appears to be gone. I was running royal purple oil apparently the PSD doesn't like it.
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Post Fiend
Joined: Jun 2006
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From: White Mnt's,New Hampshire
Originally Posted by MAKO314
I changed the oil and filter and the problem appears to be gone. I was running royal purple oil apparently the PSD doesn't like it.
Post Fiend
Joined: Feb 2007
Posts: 14,541
Likes: 2
From: Dallas-Ft. Worth
Originally Posted by MAKO314
I changed the oil and filter and the problem appears to be gone. I was running royal purple oil apparently the PSD doesn't like it.
Joe
Senior User
Joined: Aug 2007
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on the oil note i was using ats diesel oil full synthetic... truck didnt like that either it had an off kilter ilde sounded like the timeing was off or missin on a cyclinder didtnt make me to happy for the price
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Cargo Master
Joined: Apr 2006
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From: Concord NC
I put schaffers full sythetic back in , I've ran that since the truck was new and had no problems. I just up and decided to try the RP this time and it did fine under normal driving but at full throttle at the strip last weekend it fluttered and stumbled.I haven't tried the schaffers in the new 08 yet has anyone heard of any problems with it in the new 6.4 ?
Last edited by MAKO314; Oct 19, 2007 at 08:34 AM.
Post Fiend
Joined: Jun 2006
Posts: 9,714
Likes: 2
From: White Mnt's,New Hampshire
maybe the mix of the 2 oils didnt agree.making air bubbles in the oil.much like adding additives to the oil..check this out
http://www.bobistheoilguy.com/images/lucas/lucas.htm
http://www.bobistheoilguy.com/images/lucas/lucas.htm