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Old 03-20-2017, 09:12 PM
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Default Is anyone else draining your fuel rail?

This has happened to me twice now. Both times getting on the freeway, nail it to merge and get on the freeway. Truck slams like its been rear ended and the pedal goes dead. Truck still running, just dead pedal. Coast to a stop on the shoulder and it dies. Cycle the key and it fires right back up.

The first time it happened it scared the crap out of me. I wasn't sure what had happened. I called Cale at Tyrant and he told me that I had drained my rail. Its never done it from slower speeds to WOT only from about 60 mph to WOT. And both times ive had to coast off of the freeway to the shoulder which isn't very damn safe. Any advice, input, anything....
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1996 CCSB Auto, 4.10 gears, Irate efuel, super duty intercooler, BW 364.5 sxe turbo, 4" turbo back, AFE CAI, Full force 160 sticks, 1023 Hydra tunes, 4" lift d60 swap, 35" nittos.
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Old 03-20-2017, 09:34 PM
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Quote:
Originally Posted by chaselee View Post
This has happened to me twice now. Both times getting on the freeway, nail it to merge and get on the freeway. Truck slams like its been rear ended and the pedal goes dead. Truck still running, just dead pedal. Coast to a stop on the shoulder and it dies. Cycle the key and it fires right back up.

The first time it happened it scared the crap out of me. I wasn't sure what had happened. I called Cale at Tyrant and he told me that I had drained my rail. Its never done it from slower speeds to WOT only from about 60 mph to WOT. And both times ive had to coast off of the freeway to the shoulder which isn't very damn safe. Any advice, input, anything....
extreme tune ?
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Old 03-20-2017, 09:34 PM
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Yes sir. That's what I DD on
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1996 CCSB Auto, 4.10 gears, Irate efuel, super duty intercooler, BW 364.5 sxe turbo, 4" turbo back, AFE CAI, Full force 160 sticks, 1023 Hydra tunes, 4" lift d60 swap, 35" nittos.
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Old 03-20-2017, 09:37 PM
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What code is set when you drain the rail and what sets it off ? A pre set pressure ?


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Old 03-20-2017, 09:40 PM
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It doesn't throw a code
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1996 CCSB Auto, 4.10 gears, Irate efuel, super duty intercooler, BW 364.5 sxe turbo, 4" turbo back, AFE CAI, Full force 160 sticks, 1023 Hydra tunes, 4" lift d60 swap, 35" nittos.

Last edited by chaselee; 03-20-2017 at 09:51 PM.
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Old 03-20-2017, 10:37 PM
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Quote:
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Yes sir. That's what I DD on
if it doesn't happen on performance, your pump is too weak for extreme.
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Old 03-20-2017, 10:47 PM
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There's a post in the tech section with someone else running a Tyrant tune and had the same problem. Donno if he ever figured it out.


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Old 03-20-2017, 10:49 PM
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Im not sure. Ive never ran the performance tune for very long. Could this mean that my pump is starting to go out at only 50K?
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1996 CCSB Auto, 4.10 gears, Irate efuel, super duty intercooler, BW 364.5 sxe turbo, 4" turbo back, AFE CAI, Full force 160 sticks, 1023 Hydra tunes, 4" lift d60 swap, 35" nittos.
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Old 03-20-2017, 11:06 PM
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Quote:
Originally Posted by chaselee View Post
Im not sure. Ive never ran the performance tune for very long. Could this mean that my pump is starting to go out at only 50K?
possibly. but most likely it's a pump that will not maintain peak pulse width . 99/100 trucks will , that's what the extreme tune is built for. then you get the one that just doesn't move the fuel required. it's probably just a weaker pump from the factory . like i said run the performance and see if it happens again, if it happens again , your pump is possibly taking a dump . its a fine line for the highest file and the pump output. the tyrant tune calls for the max available based on what these pumps output is normally .
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Old 03-20-2017, 11:09 PM
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Quote:
Originally Posted by bigrpowr View Post
possibly. but most likely it's a pump that will not maintain peak pulse width . 99/100 trucks will , that's what the extreme tune is built for. then you get the one that just doesn't move the fuel required. it's probably just a weaker pump from the factory . like i said run the performance and see if it happens again, if it happens again , your pump is possibly taking a dump . its a fine line for the highest file and the pump output. the tyrant tune calls for the max available based on what these pumps output is normally .
Will do, Thanks
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