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    Let's Talk GMT900 DriveShafts !

    Where do you guys purchase your u-joints from?
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    2012 yukon denali hot idle engine tick/noise

    Well drove it around for the week before our trip and tuned the transmission and changed the oil everything looked great. We drove 400ish miles yesterday to go to the beach and we towed our 26ft camper down and it did great. The whole drive up and down hills the trans temp stayed 160-180 and...
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    2012 yukon denali hot idle engine tick/noise

    If I remember correctly they started doing the thermostat on the trans in 14. Mine doesn’t have that since it’s a 12. Before the tune/cam install, my trans temp stayed around 150-160. Idk if it has to do with the fact that the tune I got also tuned the TCM and changed things in the trans but I’m...
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    2012 yukon denali hot idle engine tick/noise

    hey guys. Quick observation, I’ve noticed that since the install/tune my transmission temps are higher then they used to be. Is this normal or should I be concerned? It was 85* degrees yesterday and just normal driving around it got to 190 it did t stay there but only dropped to like 180. I have...
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    2012 yukon denali hot idle engine tick/noise

    well guys i got the parts from jasper last week (the "new" lifters) i got them out of the box and they were noisy straight away. good thing i ordered my own parts. i got the cam, lifters, springs and push rods installed. put it all back together to find the tank end on my radiator had busted...
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    2012 yukon denali hot idle engine tick/noise

    Well I ordered the BTR stage 2 truck cam, Delphi lifters vvt delete it all showed up today. I started pulling it apart last night only thing left is pull the valve covers, rockers and heads. Then I can pull the cam out the front. Hopefully I like the cam enough to keep it lol
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    2012 yukon denali hot idle engine tick/noise

    Well I wish I would have seen this before I ordered it all lol oh well at this point lol
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    2012 yukon denali hot idle engine tick/noise

    I’m going to call hp tuners and see what they say. And I have an electric torque wrench that does angle (I’m a master Honda tech so I needed on) so the angle part isn’t a problem. I’m planning on ordering the parts today and starting on it this evening.
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    2012 yukon denali hot idle engine tick/noise

    honestly the only reason i want to do hptuners is i already have the tune interface so i dont have to buy that i just need the tune. i might go with the autocal from black bear but we will see what hp tuners says before i go that route. i think the BTR stage 2 truck cam is the cam that would be...
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    2012 yukon denali hot idle engine tick/noise

    ok so ive got it pieced together for the most part. got a btr stage 2 truck cam (https://www.michiganmotorsports.com/camshafts-brian-tooley-btr/brian-tooley-racing-btr-stage-2-truck-camshaft-kit-4-8-5-3-6-0-6-2-ls-ls1-lm7-lq4-lc9/) vvt delete kit...
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    2012 yukon denali hot idle engine tick/noise

    Well the good thing is it won’t take me that long to get it torn apart since I’ve had it apart before and I have another vehicle I can drive so I have 19 days to get it apart and replaced. So figured I could get it torn apart and order whatever I need and then have some time to drive it around...
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    2012 yukon denali hot idle engine tick/noise

    Ok. I will piece the exact “kit” this evening and go from there. I have a tsp stage 1 low lift truck cam in the cart on tsp’s website. This isn’t exactly what I want to be doing at the moment but I tow a camper and I have to take it to the beach in 3 weeks so I either do all of this before we...
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    2012 yukon denali hot idle engine tick/noise

    Here’s the kit that I was looking at. https://www.glennsautoperformance.com/products/gen-iv-truck-dod-delete-kit-w-texas-speed-tsp-truck-cam-kit
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    2012 yukon denali hot idle engine tick/noise

    ok so every cam "kit" ive looked at doesnt say anything about replacing the pushrods. given its all "stock" and the ls7 lifters are the same size, are the pushrods an issue? and id like to have some faith in this engine but given this is now the 2nd jasper engine, i dont know how much "faith" i...
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    2012 yukon denali hot idle engine tick/noise

    Also if I’m removing the lifters to “check” them I’m just going to replace them. No point in removing all of the stuff to just check them. And since I’m there figured now would be a good time to replace the cam and tune it.
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    2012 yukon denali hot idle engine tick/noise

    My thoughts were since it’s basically a new engine I was just going to do the lifters and cam. If I do all the things you listed, would it be easier to pull the engine out and do it all on a stand or just do it in the car?
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    2012 yukon denali hot idle engine tick/noise

    Ok I’ve started spiraling but trying to piece together a “cam kit”. I’d buy the Texas speed cam kit but it comes with things that I don’t need (the dod delete stuff) and all the gaskets have like 7k miles so figured I was good to reuse those (except the head gaskets). But my question lies in...
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    2012 yukon denali hot idle engine tick/noise

    Hey guys so I used the stethoscope and put it around the exhaust manifold and did not hear anything. I took a smoke machine and stuck it into the exhaust pipe and it did not leak any smoke. I got the engine hot and removed the valve cover and the rockers move side to side but not up and down...
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    2012 yukon denali hot idle engine tick/noise

    Ya it was deleted by jasper. I called and they said they use the non afm lifters to replace the afm lifters. So nothing upgraded just “stock” lifters. I used the metal end of the stethoscope to pin point the noise and it’s coming from the 2nd cylinder from the back on the passengers side and...
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    2012 yukon denali hot idle engine tick/noise

    I didn’t mention but it’s a deleted engine already. So no afm. And the oil pressure is slightly above 20psi on the gauge.
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    2012 yukon denali hot idle engine tick/noise

    hey guys, ive got a question, i have an engine tick noise that only appears when the vehicle is at operating temperature. its coming from the passenger side of the engine. i bought this yukon 2 years ago with a jasper engine installed, i had to replace said engine (with another jasper engine as...
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    cam upgrade question

    Well got with jasper with the oil pressures and with that and the noise they’re sending me an engine. I’m going to install it myself and not worry about dealing with another shop. They’re also sending me an engine with afm/did already “deleted” and an hptuners tune to disable it in the pcm.
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    cam upgrade question

    Also the weird part is that the noise isn’t always there. I drove down the road with the pressure gauge hooked up and then came back home and the noise wasn’t there at all. So if you guys have any insight as to what’s causing this it would be awesome lol
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    cam upgrade question

    if you listen to that video you can hear the clatter/rattle pretty good towards the end of the video as the rpm’s are coming down after revving it up
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    cam upgrade question

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