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Truck wont go past 20!

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Old 07-08-2009, 06:02 PM
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Truck wont go past 20!

i was drivein down the road yesterday and stoped at a light and win i took off it would only do 20 mph it gets to 2000 and it wont go no more .
Old 07-08-2009, 06:04 PM
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not a dodge is it??
Old 07-08-2009, 06:40 PM
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Originally Posted by arren333
i was drivein down the road yesterday and stoped at a light and win i took off it would only do 20 mph it gets to 2000 and it wont go no more .
need more info. what year, what trans. modifications if any. check engine light on? last time regular maint was performed (fuel filter mostly.) then we can help also include any codes. can be obtained by doing the key trick. take your key and cycle the ingition without starting 3 times(on,off,on,off,on) and the write down what is displayed on the odometer. answer those and we will get started
Old 07-09-2009, 02:52 AM
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the check engine light is not on . but the p1693 codes comes up and the fuel filter i just put in it not to long.
Old 07-17-2009, 09:57 AM
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After looking up the the code, p1693 it says DTC Detected in Companion JTEC Mod. I'm not sure what that means, but someone else on here will.
Old 07-17-2009, 10:50 AM
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Our '01 does the same thing, but only until the engien reaches operating temp and the nit runs fine.

But for the first 5 miuntes it will only do 2Krpm's and go about 20 mph.

We also got a 1693 code?

It might be the IP, but we did not get any of the codes realted to the VP44.

I hope someone can tell us what to do to fix this issue.

I'm not trying to hijack the thread, just adding my realted situation as well.

ra
Old 07-18-2009, 02:48 PM
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at the moment sound like an engine limp mode. i know on class 8 they have de-rate and they have shutdown. for example, engine temp goes above X degrees the engine will de-rate and light/flash the check engine light(depending on make)
Old 07-18-2009, 02:49 PM
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when the last time the tranny has been serviced adjusted??
Old 07-19-2009, 02:03 AM
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I am with Number47, "when the last time the tranny has been serviced adjusted??"
Old 07-19-2009, 08:18 AM
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Originally Posted by RiataAg
Our '01 does the same thing, but only until the engien reaches operating temp and the nit runs fine.

But for the first 5 miuntes it will only do 2Krpm's and go about 20 mph.

We also got a 1693 code?

It might be the IP, but we did not get any of the codes realted to the VP44.

I hope someone can tell us what to do to fix this issue.

I'm not trying to hijack the thread, just adding my realted situation as well.

ra
How did you pull the codes? with the key trick or a scanner?
also your symptoms are typical of a failed VP,
Old 07-19-2009, 08:21 AM
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I was going to say maybe stuck in first gear, but if that was the case he should be able to redline the truck, so I'm gonna guess either the LP went or the VP decided to take a nap.
Old 07-20-2009, 08:51 AM
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I am going to look at a '01 that I was told is doing the same thing. I fiqured it was the LP or VP44, if both were shot it wouldn't run at all. Right? If the LP went out and it was running on the VP44 like this, a simple fuel pressure test would tell you. I was planning on bringing a gauge w/ me when I looked at the truck and test fuel PSI before I offered $
Old 07-20-2009, 08:55 AM
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Just read the sig. on arren333. Most likley the VP44 if you have all ready installed an Airdog
Old 07-20-2009, 09:03 AM
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Just check the simple things first.
Check Tranny fluid for good color and burnt smell.
Check level warm and running ....in nuetral!

Disconnect the Adrenaline compeletely. They had a problem when first came out.... think it was completely killing the engine but can't remember.
If your was not upgraded (software and hardware) that could be the problem.

P1693 is nothing by itself. Go to Autozone or shop with a full scanner for better code readout.
VP-44's have failed with no codes.... and they can act up a little or a lot before dying. Just another possibility.

What gear is the tranny in at 20 mph/2000 rpm?
I don't believe the Cummins ISB 5.9L has a "limp mode".
The tranny has a limp mode if fluid get too hot. Not sure how it acts when that happens. 'Arren333', got gauges?

RJ
Old 07-20-2009, 06:14 PM
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Originally Posted by nickg
I was going to say maybe stuck in first gear, but if that was the case he should be able to redline the truck, so I'm gonna guess either the LP went or the VP decided to take a nap.
i dont think he could redline, 01s had the torque management program


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