2262 code, all quiet since reflash?

[Bater]

I had the scan tool out, as my wife's Jeep CRD was stumbling a bit at first launch. No codes there, perhaps just a batch of diesel not as winter blended as it should be. I put in a bottle of CRC injector clean for good measure.



Decided I might as well put the scanner on the 6. 7 while at it, although I haven't pulled a check engine light since we all got that reflash awhile back that ostensibly ignores initial turbo startup weirdness (among other fixes). Seems like all the activity on this forum re turbo failure, turbo cleaning, etc has pretty much died out too.



I was surprised to see our old friend 2262 "Turbo/Supercharger Boost Press Not Detected" show up as pending. Anyone else have a scan tool on recently and see this one pop up? Is it the case that this code is still occurring, but the reflash never lets it get to the point where it throws the CEL?



Andy

 

[Bob4x4]

Take it in to the dealer there is a much better cleaning procedure now,the dtc must be present to perform the service

 

[Bater]

Pending 2262 has disappeared.

Bob et al, well I guess all is good after all.



No more pending 2262 code, apparently reset itself. That tends to buttress my hunch that the code is still happening, but the reflash just doesn't let it get to a full DTC CEL light on mode.



Not eligible for that cleaning I guess...



Truck is at over 80,000 miles, out of a 100,000 mile warranty. I am hoping, that if something is going to let go, it does so soon!



Andy

 

[Bater]

Spoke too soon...

I spoke too soon, truck popped the CEL/DTC on Saturday.

Occurred the morning after a few hundred miles of highway driving. Idled very roughly for about 10 minutes during warm-up, a bit of "rrring" sound when I hit the road, then about five minutes into driving the CEL light came on as soon as I hit the exhaust brake switch. However, later in the day the light went out.

Fortunately/unfortunately the CEL light came back on yesterday, although no real noticeable performance problems. Now my hope is that it will stay on so I can take it to a dealer.

Sounding remarkably like this thread https://www.turbodieselregister.com/forums/6-7l-engine-transmissions-2007-5/214744-p2262-code-self-cleared-flash.html. (Which in retrospect I now see that I should probably have appended to. )

Andy

 

[KLauber]

Maybe they'll give you a brand new turbo instead of just cleaning it!

 

[Bater]

Maybe they'll give you a brand new turbo instead of just cleaning it!

That would be interesting wouldn't it.



Alas, the check engine light wasn't there when I started the engine for a subsequent trip this morning.



Does anyone know if these codes are stored in a manner that the dealer can read, but I can't with my OBD scanner? Or do I need to drive right to the dealer the next time the CEL light comes on?



Wait, ignore that last paragraph. The scan tool still shows the code, even though the CEL indicator turned off.



Andy

 

[Bob4x4]

Maybe they'll give you a brand new turbo instead of just cleaning it!

The test that the tech performs with the Wi tech

Will determine clean,or replace

 

[Bater]

Bob, thanks for the heads up on the cleaning procedure.

I read through what I think are the applicable TSBs this morning, 09-002-09 for the wiTECH test, and 11-001-08 and 11-002-08 for the actual cleaning. Wow, quite the procedure if the wiTECH says to do a cleaning, including checking the EGR system, air filter/induction system, grid heater etc. Some of that of course I did not long ago, as part of the 67500 service. I had even cleaned the grid heater too.

The trick for my turbo, is that I must have missed the assembly line cutoff for having a cleaning port by a matter of weeks. I don't see it in the location the TSB says it should be. Consequently, the instructions explain how, with special jig, the technician can very carefully drill the turbo housing for a new port. Think I may chat with a recommended dealer service department whether they have actually done this, as I find this procedure a bit scary, metal filings and all. (Interestingly, that dealer also happens to sell New Holland farm equipment, and I have bought hay mower parts there. )

Fortunately, after the little burp this weekend, the truck seems to be running like a champ. Perhaps the reason I have gone so long without any real turbo issues is the amount of highway driving I do, all with the exhaust brake on?

In any event, the code is there, and I am definitely going to have a dealer do the diagnostic procedure soon, certainly before my warranty runs out. I think though, I can be a little more measured in how I attack this. Maybe bundle this service with a look at my leaking front pinion seal, and a discussion why, once in a while, the batteries will drain to nothing after a two day driving hiatus!

Andy

 

[Bob4x4]

A jig is used for the drilling and tapping operation so it's

Not too risky

 

[Bater]

2262 code, drive straight to the dealer!

Dealer called this morning, no code still resident in the control module, and as Bob said, without the code they can't run the turbo diagnostic procedures.



The check engine light had gone out, but the code was still there when last I hooked a scan tool to it.



One of three things have happened:

• The code was erased when I disconnected the batteries while I changed the fuel filter a few weeks ago. (I thought these DTCs were stored in non-volatile memory. )
  
• Somehow I stupidly hit erase codes on the OBD scanner. (Which I doubt, I think the scanner gives one of those "do you really want to do that" warnings. )
  
• The code erased itself, since there were no new instances of the problem. (My suspicion, given my observations as discussed earlier in this thread. )
  

Darn it, in retrospect I probably should have just about driven straight to the dealer once the code popped. However, in all fairness, since that last bit of turbo crankiness, the truck was indeed running just fine.



Mr. Turbo, if you are going to throw a code again (or crap out), please do it before my 100k warranty expires!



Andy

 

[Bob4x4]

Battery disconnect will not clear codes and they will be stored in memory till cleared although the light will go out after a number of good trips

 

[Bater]

Battery disconnect will not clear codes and they will be stored in memory till cleared although the light will go out after a number of good trips

That confirms what I thought, and yet the dealer rep asked me whether I had disconnected the batteries for some reason. I will be very interested to see what the scan tool says when I get the truck back, as I believe one of the data fields indicates how many miles have passed since the last code clearing.



Oh well, otherwise relatively happy with this dealer's service so far. They are handling the warranty and recall things I had asked about, and pointed out and corrected one that I forgotten,a front U-joint was excessively worn. Explains the noise I sometimes heard in four wheel drive. (While a little burned about the $$ to replace my tailpipe, as mentioned in another thread, I recognize that the parts expense and apparent initial poor quality aren't the dealer's fault. )



Andy

 

[Bater]

It's looking like the dealer may be right, somehow I cleared the 2262 DTC when I disconnected the batteries while changing the fuel filter. That is extremely surprising (and disconcerting).



Mileage now: 82563

Mileage when I changed the fuel filter: 81525

Difference = 1038

DTC Clear Distance per OBD scanner = 1037



(With nothing to lose, i. e. no codes present, I also went ahead and stepped through the erase codes feature on the scanner. Confirmed what I thought, it throws up multiple flags so you don't inadvertently erase codes. )



Andy

 

[Bob4x4]

I am guessing the dealer cleared it to avoid the repair... ... .....

 

[Bater]

I am guessing the dealer cleared it to avoid the repair... ... .....

I hate to say it, but that thought did cross my mind, as it appears the full diagnostic and repair procedure is very time intensive, and I suspect that the dealer's hourly return isn't as good for warranty work. However, the clear distance data on the scanner seems to corroborate the battery disconnect theory, and with no evidence to the contrary, I will take the dealership folks at their word.



Andy

 

[Bater]

Getting a new turbo under warranty

Well I am at about 90500 miles, and boy did the turbo really start to act up. The 2262 code was showing up again, along with a new 2563 (turbo sensor) DTC. Check engine light would also come on every few days, and then clear.

The truck would run OK on the highway, with a little noticeable hesitation once in a great while. However, at slow speed near home, it would occasionally lose all power, just brought right to its knees. What was really odd about that, the power loss would happen immediately after I made a hard left turn onto our road for dinner each evening. Almost like the inertia of the turn was nudging the sliding nozzle in the turbo into a really bad zone.

Anyhow, the dealer just called, and I am getting a replacement turbo under warranty. At least one week for the new unit to arrive at their shop.

Looks like I will be putting some miles on the '91!

Andy

 

[KLauber]

Andy, you got your money's worth out of that turbo!

 

[Bater]

Andy, you got your money's worth out of that turbo!

Ken, yes, I guess I should look at the situation that way. Too bad I couldn't pull into the dealer with the odometer at 99,999 miles!



Certainly always happy when I can get a machine or vehicle worked on at a convenient time and place, versus having to be towed out of a muddy field or from the side of the highway somewhere.



I will say though, that I have had diesels where turbos went 200k+ miles. However, they were not variable geometry units, they weren't on "larger" truck engines, they didn't function as exhaust brakes, weren't equipped with as extensive emissions gear, etc. So I think that is probably some of the difference here.



Andy

 

[Bater]

Replacement Turbo

Picked up the '08, with replacement turbo.



Have only driven a short distance so far. It seemed to take a bit longer to warm up enough to go into overdrive, and perhaps the exhaust braking was slightly better. But I am probably imagining both of those things...

 

[jtwcummins]

I was having strange things happening with just over 40k miles. When using the EB, always on, on hilly roads - more like large dips, when coming to the bottom w/EB on then having to accel for the up hill side no boost and egt would climb fast toward 1600*. Down shifted to 4th and then would work. This happened a few times and felt downshift was like tapping turbo with a mallet. I was convinced my turbo was sticking. Well, got the code this month and took to dealer, Carson Dodge. The turbo and EGR were cleaned and on road test the code came back. The turbo and O2 sensors, new type, were replaced.

Several days later, right before a trip, the CEL came on again. Went to dealer and they checked code, was coolant temp and air temp diff out of specs. Told this was not a problem and the code was cleared. When the turbo was changed the service ticket stated 'fuel clean' and service current. I have all service done at the dealer just to avoid any warranty issues even though it can be pricey. They must take a good look at the fuel, was also asked if I used Bio fuel or additives, I don't. I feel lucky to have a good dealer service dept w/ a diesel tech, Eric, who knows what he is doing. Kinda funny how after a repair you tend to pay attention to everything, noise et al, and worry about things that don't matter. Hell, turn the radio up and go! Throttle response and spool up are a little better.
Truck is not a daily drive, most of the miles are trips from 300 - 2000miles, about half towing 5er.