Xillarader is Visible!
09-17-2007, 10:48 AM
#46
This is really what it comes down to!
They can refuse to work on your truck because they don't like your shoe laces...and there's nothing you can do to change it. Sure you can get an attorney and fight them, but if you actually did win, would you even want them working on your truck against their will?
They can refuse to work on your truck because they don't like your shoe laces...and there's nothing you can do to change it. Sure you can get an attorney and fight them, but if you actually did win, would you even want them working on your truck against their will?
09-17-2007, 11:09 AM
#48
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09-17-2007, 11:16 AM
#49
09-17-2007, 11:18 AM
#50
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You're right. I meant for the people who don't have a power adder but DC suspects they do and denies warranty. 'Cause that's where this is leading.....
09-17-2007, 11:19 AM
#51
09-17-2007, 11:38 AM
#52
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I don't know how to use the DRBIII or the StarScan, so tell me if this is true or not. I was told that you can look up history on the truck from just about every snesor. It would seem to me that they could look at compression history, emissions, oxygen readings, etc. and know that the truck has been running more fuel and air than stock. So the ecu never shows boost was higher than 36psi and rail pressure never higher than 24k, but it would seem to me they could look at compression history and know that it has had more air and fuel injected into the combustion chamber.
To everyone else.
Again. Everyone says they have to PROVE it. That's not exactly the case. If they tell you they think you've had a box/module/whaterver on it and they aren't going to work on your problem under warranty, what are you going to do about it? Nothing. There is nothing you can do.
To everyone else.
Again. Everyone says they have to PROVE it. That's not exactly the case. If they tell you they think you've had a box/module/whaterver on it and they aren't going to work on your problem under warranty, what are you going to do about it? Nothing. There is nothing you can do.
Umm, there's no "compression sensor" on a Cummins, therefore, no way to monitor it!
Boost and fuel/rail pressure, yes...but as Quad said, there are ways to hide almost anything
Chris
09-17-2007, 11:51 AM
#53
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Not true. My dad's 06 was just in the shop because he had a CEL for low compression. It is sensitive enough that due to a worn rod bearing and the tiny amount that would cause the piston to come up short of normal TDC, it knew there was compression loss.
09-17-2007, 12:40 PM
#54
DTR's 'Go to Guy'
The code wasn't for low compression, it was for a cylinder misfire. The ecm is able to detect a misfire, but not able to detect WHY there is a misfire. The ecm has no sensor for fuel pump pressure from the lift pump, spark ( whether it is there or not ) on a gasser!, compression, broken valve spring, ect. ,tons of variables. It can only tell that one cylinder is not providing the power that the others are. It is the technicians job to determine the why. People ( not everyone and not intended to the poster ^ )think that these scanners are magic and "tell" the technician what to replace. All the computer is able to do is report a problem. It is then the technicians job to determine if it is a mechanical or electrical problem or a combination of both. The computer keeps track of tons of certain things, none of which are able to prove whether or not there is a box on the truck. The scanner is only as capable as the person who is holding it. Just like a personal computer - garbage in= garbage out! LOL
09-17-2007, 12:47 PM
#55
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Are you saying that the ECM was showing a cylinder imbalance? I guess you could check the buddy cylinders by the firing order and find out which one is bad. I didnt think the Chrysler ECM's were that refined. I work mostly on ISX's and thats how you do it on them. I have a Snap On scanner which is supposed to be full function, and it does not show cylinder imbalance. I think I need to TALK to the Snap On ma. this week 
09-17-2007, 03:09 PM
#57
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The code wasn't for low compression, it was for a cylinder misfire. The ecm is able to detect a misfire, but not able to detect WHY there is a misfire. The ecm has no sensor for fuel pump pressure from the lift pump, spark ( whether it is there or not ) on a gasser!, compression, broken valve spring, ect. ,tons of variables. It can only tell that one cylinder is not providing the power that the others are. It is the technicians job to determine the why. People ( not everyone and not intended to the poster ^ )think that these scanners are magic and "tell" the technician what to replace. All the computer is able to do is report a problem. It is then the technicians job to determine if it is a mechanical or electrical problem or a combination of both. The computer keeps track of tons of certain things, none of which are able to prove whether or not there is a box on the truck. The scanner is only as capable as the person who is holding it. Just like a personal computer - garbage in= garbage out! LOL
09-17-2007, 03:16 PM
#58
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I'm telling you what they told him. They said they plugged it in and it told them that #5 had low compression. So now they would have to start looking into what caused it. After some other testing (there was also a noise present) they decided to pull the pan and discovered it had a bad bearing. Why wouldn't they say #5 had a misfire rather than low compression if that's what the scanner told them?
But if the dealer said it, it has to be true I guess!
BTW, not picking on you personally, I just can't stand most dealers!
Chris
09-17-2007, 06:32 PM
#60
