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Old 01-25-2014, 09:59 PM
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My first diesel, lots of questions

Have been browsing this site and decided to join, I just bought my first first diesel and need to learn. Bought used 99 for 7.3 ext. Cab, have a stack of receipts, new motor (90k), tranny, just rebuilt front and rear differentials with 4.11 gears, K and N FIPK intake, deep sump tranny pan, Banks Dynafact gauges EGT, Transmission, and Boost on pillar mount. And finally 4" straight pipe.
Unknown addition was a 3 position toggle switch by the steering wheel. Didn't know what it's function was so I flipped it of course. Top position seems to turn down turbo, center position mild/normal turbo and 3rd really picks up the turbo. I don't the make of the part, which bothers me, and don't want anything that will harm the truck.
I am chasing the ever popular defrost only problem,seems to clatter a little louder, and have noticed a heavy decline in power recently and at WOT only getting about 16 lbs on gauge. Used to get about 22. Very slow off the line, almost gradual accelleration it seems until spool. Couldn't spin a tire unless it was icy. New fuel filter just installed and have run 2 tanks of diesel clean so far.
Just looking for someone with patience to teach me what I need to know.
Thanks in advance


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  #2  
Old 01-26-2014, 05:12 AM
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First

Now ditch that tuner/chip/programer/ 3position junk... If you don't know what it is, take it out. You run the risk of doing damage to the engine/transmission. I would do this ASAP.

You want to get a chip from one of the well known tuners, TW, PHP, Gearhead, P.I.S, etc. There are two main styles of chip that will get recommended to you, TS which is a chip that can be burned by essentially everybody, but the downfall is it must be sent back to the tuner to be reburned, or the PHP hydra is gaining popularity, the benefit of the hydra is tunes can be updated without removal from the truck. Really if you aren't going to go to single shot injectors, you don't need the Hydra.

I don't know much about banks gauges, other than anything with the banks line is generally overpriced, but if they are working keep em, if not autometer or ISSPRO should be what you look at. NOT glowshift.

As for low boost... is your turbo louder than it used to be? Do some research on sticking EBPV, if not check for boost leaks, you can google that too for answers.

I'm tired that's the best I've got right now, I'm sure others will chime in while I sleep
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Old 01-26-2014, 07:03 AM
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as far as running louder, are you low on oil or past the oil change interval?

or could be an exhaust leak
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Old 01-26-2014, 11:12 AM
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Thanks, oil is changed every 5k, 5w/40 synthetic. Also was researching banks gauges and most say you can't run dynafact gauges without having the banks tuner. I haven't seen it anywhere under dash and would assume the 3 position swith would be marked if it was theirs. As far as disconnecting the switch, do I trace wired back to source and remove or just unplug and cap the wires?

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Old 01-26-2014, 02:24 PM
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The chip is going to be hooked into the PCM of the truck or into the OBD port. Without knowing what the tuner is I can't say which.
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Old 01-26-2014, 02:56 PM
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Quote:
Originally Posted by schlutzer View Post
First

Now ditch that tuner/chip/programer/ 3position junk... If you don't know what it is, take it out. You run the risk of doing damage to the engine/transmission. I would do this ASAP.

You want to get a chip from one of the well known tuners, TW, PHP, Gearhead, P.I.S, etc. There are two main styles of chip that will get recommended to you, TS which is a chip that can be burned by essentially everybody, but the downfall is it must be sent back to the tuner to be reburned, or the PHP hydra is gaining popularity, the benefit of the hydra is tunes can be updated without removal from the truck. Really if you aren't going to go to single shot injectors, you don't need the Hydra.

I don't know much about banks gauges, other than anything with the banks line is generally overpriced, but if they are working keep em, if not autometer or ISSPRO should be what you look at. NOT glowshift.As for low boost... is your turbo louder than it used to be? Do some research on sticking EBPV, if not check for boost leaks, you can google that too for answers.

I'm tired that's the best I've got right now, I'm sure others will chime in while I sleep
Whats wrong with GlowShift? I have no issues with mine
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  #7  
Old 01-26-2014, 03:04 PM
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Quote:
Originally Posted by Im_Strokin_ur_Cummins View Post
Whats wrong with GlowShift? I have no issues with mine
Because they are the cheapest crap gauges out there. Many people have them failing in less than a year.

I'd buy bottom of the barrel autometers before glowshift. Look how many threads there are with failed glowshift gauges.
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Old 01-26-2014, 04:14 PM
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Not going to obd port, will chase them down in the morning and see what I can find. If plugged into the pcm, can they just be unplugged? Will try and get pics of it tonite

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Old 01-26-2014, 04:15 PM
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That will depend on the way the previous owner modified the box. I cut the hole big enough so I can pull the chip out but not everybody does.

The PCM is beside your ebrake btw
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Old 01-26-2014, 04:33 PM
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ya i cut the back of the bracket out, that way the cord isnt crimped.

gauges shouldn't be connected to the chip.

banks six gun has everything wired together though.
banks six gun is switch on the fly, the others are all programmers.

the dynafact gauges are different than the six gun.
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