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  #25  
Old 03-17-2015, 11:32 AM
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Re: Trams Band Adjustment Issue

The bluetooth dongle is just a small device that connects to the OBDII port and which connects with your android phone via bluetooth, so no cables. I bought mine directly from China, was around USD 12 i believe. Have a look on e bay or Amazon for an ELM 327 dongle.
You could press the schräder valve on the fuel rail to see if there is a lot of pressure on the fuel, or almost 0. Keep a rag closeby to catch any spill.

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  #26  
Old 03-18-2015, 09:48 AM
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Re: Trams Band Adjustment Issue

Just download the TORQUE software and ordered the Bluetooth deal. If it works 1/2 of what it says that will be cool.

OK ready for an update. Got a fuel filter last night (cheap shot at fixing it + it needed one).

Jeep would start run and die. So I pushed it to the garage...

I noticed 1 of the "plaatic" lines from the tank was bent almost in 1/2. It says non repairable on it of course. I straighten it pretty well.


Tried to start it, same thing. Kept trying and itb started running pretty well. Took it for a drive and it started cutting out again at higher speeds. Then even at lower speeds.

this jeep is killing me.

I'm going to cut the two plastic lines that run to the filter, and use rubber fuel line. I know I have to be careful because the fuel filter is plastic.

But I'm not dropping the thank to fix a bent hose, unless I end up replacing the fuel pump.

For now, any thoughts for fixing those stupid plastic fuel lines with the stupid connectors,

I'm thinking some type of glue (optional) cut/slide then into a rubber gas line, clamp it there and on the plastic filter.

Again, I will do it right if I(when) have to replace the fuel pump. This is just until I get the current problem fixed.

Thanks as always
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  #27  
Old 03-18-2015, 11:23 AM
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Re: Trams Band Adjustment Issue

Once a plastic line bends to far, it will permanently reduce the inner diameter of the line. Replacing the line partly with a hose is possible, but it has to be done very carefully, a leak could set your jeep on fire.
If you only do this repair to see if it will run right, i do agree, but i would replace the lines (and consequently lower the tank) before further use of the jeep.
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  #28  
Old 03-25-2015, 09:29 AM
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Re: Trams Band Adjustment Issue

I had to take a break from working on this jeep. Here's the latest.

Got the BT dongle & TORQUE software - AWESOME! Works great - on my 09 Charger & 2013 Jeep JK. that is. It will not work on this 99 WJ (remember that in a minute). It sometimes connects to the BT Dongle, but can never make a connection to the computer.

I got the fuel filter replaced. That was not the problem. I tested the fuel pressure (steady about 50psi), which I beleive is normal.

PCM NOTES:
I'm starting the think PCM. Pulled that last night, cleaned all connections. I actually opened the PCM up too, didn't see anything visably wrong. BTW the PCM is a pretty simple circuit board. There is not much in there to go bad, 3 capacitors mostly & they checked out fine. The circuit board has a conformal coating too. There is no question at all these things go bad (I might have a bad one)! But after looking at my PCM, I suspecting a lot of the quick/ghost PCM fixes actually relate to the fact you are messing with it! Disconnecting wires, moving things around, etc.

But what do I know P.S. If you would have a bad capacitor in your PCM, you can replace it for a dollar or less if you can solder. Also, if you open the PCM up you will break the water proof seal. Just add a little silicone before you tighen up the screws and your good to go.

Last PCM notes -
1) use an air hose (low pressure) or other method clean out the area where the PCM is at. Just get as much dirt/dust/rust out of there before you start to work. That will help to eliminate the chance of anything getting into one of the electical connectors you have to remove, etc.
2) get electrical parts cleaner (lots). Clean out all of those electrical connections, if you open the PCM up, you can clean that as well. Mine looked bad on the outside, but like new on the inside.

OK. Sorry for the long post. Just sharing info!

So, my fuel filter is fine, fuel pressure is good. PCM could be bad, but it looked OK upon visual inpection.

Back to my problem. My jeep either will not start, or starts for a second, runs rough and dies. Lately - NO CODES! Nothing, except occassionaly now a FLASHING LOW FUEL LIGHT and/or that WRONG KEY light. I don't get these all of the time now, but they consistantly show up say 25% of the time.

I searched and can't find anything related to a "flashing low fuel" or "wrong key" light that could cause this problem.

So..... remember that BT dongle not being able to read my PCM I mentioned earlier. That works on my other vehicles & it should work on my 1999 WJ (OBDII). So, I'm now thinking I might have a wiring problem (possibly between the OBDII port and the PCM (basically inside starting with the PCM wire bundle behind the glove box). OR I have a bad PCM (some non-capacitor failure or "corrupted software").

I'll check the wiring and update this thead. Also, if I order a PCM online who would you recommend? I would like to get one already flashed.

Thanks - and one last question. Do you think I should start a new thread? This problem has evolved beyond the "Transmission Band" adjustment that I was orginally 90% sure caused the problem!
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  #29  
Old 03-25-2015, 10:46 AM
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Re: Trams Band Adjustment Issue

Yeh, this story is changing a bit over time. That the bluetooth dongle doesn´t work on your jeep, could mean that no scanner will work on your jeep (at the moment). Did you try a scanner from autozone or alike (who do it for free)? For some reason, the PCI data bus is not working well. Could be due to a bad PCM, but also one of the many components which are connected to this bus (or even water ingress into one of the connectors, shorting out the bus). Your 99 WJ has a PCI disconnect plug under the steering column (the diagnostic juntion port). When you remove the shorting plug, you will disconnect the PCM and a few other components from the rest. You will loose the instruments, power locks, power windows and a lot of other things, but should be able to start the jeep when the problem is not PCM or SKIM related. If it still doesn´t start, then there is a good change that the PCM is the problem. If this is the case, then i will look into the schematics manual which other components are still connected to the PCM, to narrow down the problem. You could then disconnect those components and see if the engine runs. You will finally only have the PCM and SKIM connected, because without one of these two, the engine will never run.
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  #30  
Old 03-27-2015, 09:43 AM
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Re: Trams Band Adjustment Issue

Got it to run/idle for a bit. Heard a tick coming from rear of engine. When I heard it the engine shuttered and died.

Turns out I had a spark jump on cylinder 5 or 6. Removed coil pack, cleaned with electrical cleaner, checked plugs, put dielectric grease on the boots and reinstalled. Ran perfect for an hour, about 30 miles!

FIXED!

NOT!
This morning I decided to take it to work. Started fine, ran fine until I got into 2nd gear with a little load (going up a hill). It then started to shutter/slip. Then was fine again until the next similar situation. I think (and am after wrong) it's more engine than tranny related?

Remember, it was perfect when I parked it last night!

No codes of course.

I'm at a loss now. Back to checking wiring or replacing PCM?

Or should I first replace the coil pack & plugs (plugs are newer Autolites, for $15 I can replace with OEM Champions).

What kills me is that it was 'perfect' last night! I mean it ran like new!

Wow. What an adventure with this jeep. Thanks again for the help.
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  #31  
Old 03-27-2015, 10:31 AM
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Re: Trams Band Adjustment Issue

Does the bluetooth dongle work now on the jeep?When you compare the ambiental situation between yesterday and today, are there any differences? (temperature/humidity/rain etc).
When you say that there was a spark jump at cylinder 5 or 6, how did you discover this? When the spark jumps, then the PCM should register a misfire for the respective cylinder. That it ran fine for a while after doing the work on the coil pack, seems to be pointing to a problem overthere. But still the PCM should give some fault code.
Also when the engine died, did the key symbol light up on the instrument panel?
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  #32  
Old 03-27-2015, 11:21 AM
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Re: Trams Band Adjustment Issue

Good question, I just checked & no the BT dongle still can't connect to the PCM.

No engine codes at all. And the Low Gas and Security/Wrong Key lights have not come back on (so far).

Yeah kind of weird no codes at all lately. The last code was about a misfire in cylinder 6. That's when I put a Duralast coil pack on and it would not even start! So I put the old/current coil pack on and never got the code again - even though I obviously had an arc condition.

Weather, much colder this morning and a little damp. The jeep was garaged overnight. I also ran it for about 20 minutes this morning to make sure it was warmed up. Just didn't trust it for the 20 mile trip to work! But last night I would have taken it anywhere.
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  #33  
Old 03-27-2015, 01:44 PM
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Re: Trams Band Adjustment Issue

Did you try the keydance? Ignition switch off/run three times and leave in run at the third time. The odometer should show DONE when no faults stored, or a fault code(s).
If that also doesnt work, then there must be a fault in or the PCM, or any to the PCI data bus connected components.
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  #34  
Old 03-27-2015, 04:04 PM
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Re: Trams Band Adjustment Issue

Yed, key dance it all of the time. No codes since last week. Just those 2 dash lights which I have not got since yesterday.

I hope this is not wiring... I can fix anything I can find that might be pinched or shorted. But troubleshooting the whole thing - e gads!

But I guess if I can't get my code reader to work it might be a wiring problem.

Still can't belive it was perfect all last night, then started acting up again this morning......All it did was sit in the garage.
..
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  #35  
Old 03-27-2015, 07:26 PM
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Re: Trams Band Adjustment Issue

But did you get "DONE" at the end of the key dance?
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  #36  
Old 03-27-2015, 10:05 PM
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Re: Trams Band Adjustment Issue

Yep done.

Put a new coil pack on tonight and champion plugs. Drove 20 miles and all was good! But let's see how tomorrow goes.
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