Search results

  1. F

    Starter keeps cranking

    There is a specific clearance required for the UP/Down portion of the spacing between starter gear and flex plate... There is also an IN/OUT clearance (forward/backward) spec also,, Your aftermarket starter may require shims and/or spacing adjustment of the starter gear There are some pics...
  2. F

    Remanufactured Transmission Temp

    If you are using the proper Dexron VI fluid, 200-235 is not going to cause any issues. You will have to do a search on the web for the "IN"/Cooled" port and the "OUT/Hot" port at the transmission... Then do the same for the radiator lines.. Usually the upper port on the radiator is the...
  3. F

    Remanufactured Transmission Temp

    Which transmission do you have??? 200* is pretty normal in summerish ambient temps Wait a few weeks when the outside temps drop a bit and then it should be back to the 175-200 range.. If it doesn't then, I'd suspect an issue with either the cooler lines or even if the converter is not...
  4. F

    Budget rebuild- Can it be done?

    You will also need a good tune after it's all put together just to get it to start and idle decently. So either go with stock camshaft or budget that in as a MUST DO Holy Old thread... just saw how old this was after I replied !!!
  5. F

    I was told that I must have a broken valve spring...

    90 psi cranking compression sucks............... You have a piston issue or a lifter issue is my guess A healthy gen IV engine should have at least 150 psi on all cylinders
  6. F

    For Those with Aftermarket Camshafts

    Just to Update: I went thru my "tuning school" book that I paid for and it really helped out. Any cam larger than stock you have to turn the idle speed up to like 800 ish and you have to add "base running minimum airflow" up about 20% to get it to run/idle. I've really enjoyed being able to...
  7. F

    For Those with Aftermarket Camshafts

    Yes... I did get my idle about 90% to where it should be.. I'm still fumbling my way thru HPTuners and learning as I go.. I think if I were to do it again I'd find a VVT cam that was just a bit smaller or at least have a bit more lobe seperation- like 114 or 115 VS the 113 on the gwatney...
  8. F

    New Oil Pan gasket leaking?

    When the timing cover assembly was off...... if you didn't get all the surfaces perfectly clean and then just the right amount of RTV when you reassemble it can leak.. Also, be careful NOT to over tighten those bolts.. They are pretty small... I think when I did mine, the torque figure was like...
  9. F

    Ordering correct transmission cooler lines

    Yes.. Look at the codes on the sticker in your glovebox... Also, that really looks like engine oil mess to me... Might just be the how the pic is taken.. You have engine oil cooler lines as well. They start out near the oil filter at the block and go to the DRIVERS side of the radiator...
  10. F

    Atf fluid opions please

    The maxlife is a good choice as your tahoe is "older" now and prob has a few miles.. That being said, Any DexRon VI Spec fluid will be fine.. Make sure you use a quality filter like ACDelco/GM , Wix or ATP
  11. F

    Own brake controller

    Nope... that's just a replacement switch ... You will need "All the factory stuff" to make it work... Best choice is just an aftermarket brake kit
  12. F

    Low Oil pressure when cold 2008 Tahoe

    5W30 is fine unless you are in a super cold or extremely hot climate. Make sure you use quality synthetic oil - dexos approved and a quality oil filter like an acdelco or wix If you've waited too long, the oil may have a lot of moisture or contaminants in it 40 ish cruising warmed up engine...
  13. F

    Fans come on at start-up

    Before you turn off your ignition on the next trip, make sure EVERYTHING is turned to OFF... Then wait like 30 min or more before the next restart... Open the hood first so you KNOW for sure if fans will be ON / OFF and if they are ON, is it HIGH or LOW speed. Both fans should always be...
  14. F

    2012 GMC Yukon XL Denali Towing

    You'll be fine.. Just make sure all your fluids/ filters/ maint is up to date. Keep an eye on your trans temps when towing loaded. Make sure you run your trailer tires and Yukon tires at their ideal/max pressures Listen to GeoTrash and Swathdiver - we've all done this with even heavier...
  15. F

    Anyting I can do to prevent AFM issues?

    The OE rockers fail mostly due to high lift camshafts... They can only rotate a limited amount of degrees... So with stock lift numbers, generally under .540 ish, there is no reason to change.. But once you get more lift and of course then you need more spring pressure, they can fail. I did...
  16. F

    The Falcon died...

    As others have said, Do a new torque converter.. They are hard to find right now for the 6L80E so start searching... You would be ok IF the only one you can find is a totally stock one... They can usually last for 100K with no issues. And it sounds like you have a bigger truck for your...
  17. F

    Looking for advice/help with Object Sensors on Side Mirrors

    I did some more searching... on the side object sensor. I'm going to remove it and clean the module and wiring and see if that solves my problem. It's been this way since I bought the Yukon in 2019 and hasn't gotten any better or worse. I've found the module online for about $400.. Apparently...
  18. F

    Looking for advice/help with Object Sensors on Side Mirrors

    I get a lot of false object detection on my side view mirrors... It doesn't cause any actual problems, other than it is annoying. And of course makes me not trust this function I have looked in my scanner for its function and reset but haven't found anything that actually helps. I don't even...
  19. F

    Is there a PID for Fuel Pressure

    Yes there is for sure... I can read it on my scan tool, my diablosport and my HPTuners
  20. F

    P0306 NO MATTER WHAT I DO

    Your AFM lifter(s) have failed.. That's what needed replacing when you pulley the cylinder head. Also, if keeping AFM activated, you'll want to replace the VLOM as well or you could be in the same boat shortly with the new lifters
  21. F

    Trans Service Question

    Drop the pan. Replace the filter. Clean everything up.. Fill with Dex VI fluid.... Do this every 25K or so depending on usage. DONE
  22. F

    Radiator for Tahoe with K5L

    Sorry... I hit the Wrong one... My mistake
  23. F

    Radiator for Tahoe with K5L

    GM GENUINE 21650 {Click Info Button for Alternate/OEM Part Numbers} Economy Info FLEX Fuel; Exc. Enhanced Cooling Package (K5L); CORE SIZE 34 IN X 18-1/2IN X 1-1/16IN; w/ RPO Code APC,ASA,ATS,ADP,DEG,FAA,CAL,AJN,BBL,CCM,AAF4,0117; 6 Speed Automatic Trans...
  24. F

    Radiator for Tahoe with K5L

    I'm confident that IF it has the trans cooler lines (they all do) AND the oil cooler then they are all the same.. You should be able to find it for around $200+
  25. F

    Trans cooler addition 6l80

    I'd keep it simple... Just put on the bigger pan. It's a great time to service your trans too. The bigger pan will hold 2-3 more qts of trans fluid and help cool things. Your temps right now are very normal/average and you are not harming anything at those temps... If you are not towing in the...
View older results

Forum statistics

Threads
132,298
Posts
1,865,543
Members
96,881
Latest member
Cardowntown

Latest posts

Top