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    ITBC not working on 2011 Suburban

    Thanks for the replies so far. The whole trailer and truck are ridiculously clean and the connectors / terminals are as well. Got a chance to do some checking/testing and here’s what I’ve found: As mentioned connectors look great. Factory wiring to the fuse block is connected properly...
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    ITBC not working on 2011 Suburban

    Not sure of the brand of brakes.....but I’m confident they are magnetic - it’s a Forest River camper. I’ll do some more research...seems ridiculous the IBTC would “prefer a brand” of brakes ...:
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    ITBC not working on 2011 Suburban

    Picked up a camper to do some traveling with and the factory trailer brake controller isn’t working. This is my first GM product so I’m not familiar with the IBTC. Is there anything I need to do besides hook up the 7-pin and then adjust the gain..? I don’t think the truck is sensing that a...
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    Low Oil Pressure at Idle When Warm

    is the o-ring problem an issue on the later (07-13) 6.0 engines..? I’ve always thought my K2500 should have better oil pressure. About 20 at warm idle. I haven’t owned a GM product for years and this one only a few months.
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    New tire time coming soon

    Blizzak tires are great Winter tires, but are expensive and do wear quickly. I don’t use them year-round. I put a set of DuraTrac on my Suburban and and very pleased with them. Deep tread with wide gap should handle just about any situation. They look great and very little road noise.
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    Who mfg the best glue on dash cap...?

    Needing to cap the cracked dash on a Suburban....
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    Help me “bulletproof” my K2500....

    As mentioned I bought the truck used with 117k miles from a Dealership. There were no maintenance records so I had to go by cosmetics and overall appearance to get an idea of what type of care it received. It’s in VERY good to excellent condition - otherwise I would not have bought it. I have to...
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    Towing Question

    I like to run in tow/haul mode on occasion even with nothing hooked up to the truck. I like being able to run a little higher engine rpm when it’s cold outside to get things warmed up (I’ve been running 10w-30 engine oil). It takes a light foot on the throttle to keep things smooth, but that’s...
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    Help me “bulletproof” my K2500....

    Outside of the Blackbear tuning I’m pretty up to date on all the 100k mile parts replacement. Didn’t think about 02 sensors....thanks. With changing the gear oils over to RedLine last week I also dropped the trans pan and changed the filter and added a drain plug for future fluid exchange. I was...
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    Help me “bulletproof” my K2500....

    I’m really liking my 2011 Suburban 2500 SLT and am hoping to make it last another 20-years. Not a daily driver and it has 117k well kept miles on it. What should I be looking at for upgrades to the engine/driveline..? Currently it’s just a family cruiser but hoping to get a pull behind camper...
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    2009 Tahoe LT thoughts

    What is this transmission tune that you speak of....? I’m really liking my new-to-me Suburban K2500 so I’m looking to “bulletproof “ it...:
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    2009 Tahoe LT thoughts

    Double Tap
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    Filled up my sisters E85 Yukon ...now runs like crap.

    Thought I better update the thread. Thanks to all for the conversation. The Dealer diagnosis was as follows: Fuel in tank tested at 80% ethenal - so I didn’t screw that up and, yes, the blue handle pump was E85. Misfire on the #6 cylinder with a history of misfire on #4 and #8. Mechanic ran...
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    Filled up my sisters E85 Yukon ...now runs like crap.

    Took it to the Dealership that is open on Sunday and the diagnosis : RPO code L29. Fuel filler cap is yellow marked E85. Fuel in the tank tests at 75% alcohol. So the blue handle pump is E85 at this station. Which I did verify twice. The Mechanic was able to run it on fuel independent from...
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    Filled up my sisters E85 Yukon ...now runs like crap.

    Thanks to those who posted. My wife and I were out on a date so couldn’t respond. I have to clarify that I have never OWNED an E85 capabale vehicle and have zero experience with them. My confusion is because I was told it’s E85 , it has the yellow filler cap stating E85 but no flex-fuel emblems...
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    Filled up my sisters E85 Yukon ...now runs like crap.

    it s a non flex-fuel engine. When I put fuel in I’m certain I used the E85 pump. It was a blue handle pump. I have called the gas station TWICE to verify that it was E85. But now after about 30-miles, the truck runs terrible and is throwing codes. Dealer said up to $1200 to remove the tank and...
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    Looking for a QUALITY front suspension rebuild kit for my 2500

    Getting used to my new to me 2011 Suburban 3/4-ton. Not sure, but it feels a little loose up front. I believe it’s still all original and am looking at doing a front end rebuild. I’ll take it into the Dealer and see what they say about it’s current condition, but I thought I’d start looking for...
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    New Tires

    Just last month I went back and forth on the Michelin LTX and the Goodyear Duratrac for my Suburban. I ended up with the Goodyear’s because I got the set for $260 less than the LTX was going to cost. I really like the ride and they look great. Only problem with them so far is they are a tall...
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    Changing tow mirrors over to power folding mirrors 2011 Suburban....

    Just got a 2011 Suburban 2500 LT that has the large tow mirrors - heated w/turn signals and extend manually - but are too wide for the garage. I purchased some nice used power folding/heated/turn signal units and appropriate door switch from a 2011 Sierra. I went in assuming the wiring harness...
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    2007 GMC Yukon XL 2500

    Are these numbers correct....? I know the 2001-2006 w/8.1L were rated up to 14k....and the limiting factor on the 2007-2013 was the hitch rating..... plus no more big block after ‘06....
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    Do I need better than OEM brakes on Suburban 2500

    The rotors on the new-to-me 2011 Suburban 3/4-ton are rusted. I’m thinking of going with drilled/slotted rotors with ceramic pads. Vehicle is going to be a family vacation hauler and although we currently don’t have a camper to tow, we might get something in the future - nothing really big. The...
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    What maintenance to expect around 200k miles

    Not trying to cause a pissing match but I don’t think any actual facts were offered.....and I would argue that tranny - a big hydraulic pump - IS a sterile environment. So as to not hijack this thread I’m going to move my discussion to a new thread shortly - because apparently I need further...
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    What maintenance to expect around 200k miles

    Flush is hooking up a machine to pump fluid in , vacuum fluid out and removes ALL the old fluid. A change is pull the pan and filter - only removes about 40-percent of old fluid.
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    What maintenance to expect around 200k miles

    Interesting.....I’ve been trying to decide whether or not to do a flush or change on the new-to-me 2011 Suburban 2500 115k miles that I just purchased. I was thinking I should do both....flush it first then do a change with new filter. Lots of opinions out there.....
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    Replace , cap or cover GMT900 dash...?

    Price quoted was installed....

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