Search results

  1. shoplizard

    2012 suburban disappointment

    I suppose you are right there may have been more broken studs out there that I didn't see since my expertise was mainly transmission and electrical. Most of the mechanical engine service and repair went to someone else. I do remember a few in the early 2000's, neither of my 53's with over...
  2. shoplizard

    2012 suburban disappointment

    Good morning, I would like to make some comments regarding the issues on your suburban. First is the broken exhaust studs, I worked as a technician for a GM dealer for 25 years and only saw a few engines with broken studs I live in northern Montana so we experience extreme heat and cold. Second...
  3. shoplizard

    Need Help. 2011 Tahoe cooling system will not pressurize.

    Have you checked the HVAC system for fault codes, I am assuming your Denali has auto HVAC and therefore can be accessed by a scan tool. For the most part, what you are describing is normal operation, the cooling system will not build pressure until the engine temperature exceeds the boiling...
  4. shoplizard

    New body old body fixup

    I would like to comment on an earlier post regarding the repair of the rust on your Denali, if it is like any of the others I have seen come into the shop I used to work in, you are wasting a lot of time and money attempting to make the vehicle a nice ride, in my opinion, it never will be and it...
  5. shoplizard

    P015B Check Engine Code

    I found this web page describing this code as a generic code, almost all makes. https://www.obd-codes.com/p015b I hope it will help you.
  6. shoplizard

    Transmission shifting hard

    Tcc regulator valve problems were an issue in the mid to late 90's after that the valve bodies were modified to correct that problem which caused the tcc slip codes to set and cause harsh shifts. Another item that will cause a harsh 1-2 shift is a broken 1-2 accumulator spring located in the...
  7. shoplizard

    200,000 miles

    If you are concerned about low oil pressure in your engine, you should check it with a known accurate gauge (mechanical or digital) installed at the oil pressure sending port of the engine. Checccccccccccccccccck the pressure at idle and 2500 rpm with the engine at operating temperature. If the...
  8. shoplizard

    need help solving lean condition

    Just out of curiosity, how does the vehicle run on the highway at WOT? What is the MAF reading and what are the LTFT readings on each bank at WOT (wide open throttle).Your MAF should be around 200 GPM (give or take 20). and both LTFT's should be near 0. If the MAF readings are very low and the...
  9. shoplizard

    Please help! Heat doesnt work!

    Hi, I have read your story and I feel your problem is a flow through the heater core problem. When you replaced the heater core, what was the condition of the coolant? Was it clear and not cloudy and orange, like rust sludge. I used to see a lot of that in R and W engines. Did you flush the...
  10. shoplizard

    Coolant Leak after changing Thermostat?

    There is one thing you might check is the little hoes that attaches to a nipple on the passenger side of the radiator near the top. Remove the hose carefully and check and clean the inside of the nipple on the radiator. Add some coolant to the reservoir and verify that coolant and air come out...
  11. shoplizard

    Throttle body acting up

    The problem you are encountering could be caused by a broken wire to the throttle body from the control module. I think the module is mounted on the firewall next to the left hood hinge. You may have to carefully remove the wires from the loom on the right side of the intake manifold. Inspect...
  12. shoplizard

    Please Help Guess the Part!!!

    Yep, your rear axle is TOAST. I'm pretty sure you don't want to attempt to repair it. I have done quite a few of them and you will need a lot of special tools and experience would be helpful. Start searching salvage yards for a good used axle assembly.
  13. shoplizard

    Please Help Guess the Part!!!

    The amount of oil coming from behind the yoke is very minimal. A seriously leaking seal will fling oil all over everything. I don't believe the seal is a problem. You are still going to have to perform the checks I suggested to be able to come to some conclusion as to what your problem is, Good...
  14. shoplizard

    Please Help Guess the Part!!!

    Hi I have a couple of suggestions for you. First, when you check the u joint for slack, set the parking brake and put chokes under the wheels, then put the trans in neutral, engine off. Grab the rear of the prop shaft and check for movement. If the u-joint is bad it will most likely rattle and...
  15. shoplizard

    Whoop/Squeak when hard accelerating

    I can't say I have seen a 2WD Takoe, but the symptoms sound the same as with a 4WD. As you accelerate the rear differential tips down pulling the drive line slip yoke out, when you decelerate it is pushed back into trans mission. If this slip yoke sleeve, bushing and/ or seal are dry and/or...
  16. shoplizard

    Cruise control

    Hi, The first thing you need to do is run it on the scan tool (Tech II) and check for codes. Certain codes set will defeat the cruise control. Correct any faults found. If that does not fix the CC, backtrack your installation and check all connections and wires for breaks, loose terminals, etc.
  17. shoplizard

    Stumped the dealerships today need help

    Good morning, It sounds like you are having a problem with a leaking fuel pressure regulator. Normally with this problem, the engine will start easily when cold because rich mixture is needed for starting, but when it is warm the excess fuel makes it difficult to start. The regulator is mounted...
  18. shoplizard

    Stumped the dealerships today need help

    Good morning, I know this may sound a little off the wall, but I had a 1997 Suburban with 275,000 miles on it. I started getting the low efficiency codes setting. I first checked the HO2S's, I added extensions on the post sensors, I was still getting codes. One day I was doing some work and...
  19. shoplizard

    Change Transmission fluid, keeping filter

    A question I have is, what was the visual condition of the fluid? Was it clear, Red or light brown, and no burnt smell from the fluid. If this is the case then the fluid was still usable. How did the trans shift, did it slip during shifts, if not then the trans clutches are likely in good...
  20. shoplizard

    Buttons are stuck

    I am not so sure this going in the right direction, first of all, you should never spray any kind of solvent on the plastic control panel. As was mentioned earlier it could cause more damage. In my experience as a GM tech the most common cause of sticky buttons is sticky Coke, Mountain Dew or...
  21. shoplizard

    Drivers side floormat wet after rain

    Hi, You may not have to remove the cowl just yet. A good way to check for a leak in that area is to clean and dry the interior as much as possible and then remove the kick panel, find yourself a helper, or a roll of duck tape. Position the hose near the top of the windshield and let the water...
  22. shoplizard

    02 Tahoe 5.3 LTE electrical problem.

    Hi. If you're positive that your battery is fully charged and voltage is at least 12.5 volts, then I would suspect a loose, corroded or broken electrical connection. I found that on some of the early 2000 Tahoes Etc. there is a ground wire at the rear of the engine mounted to the block that will...
  23. shoplizard

    Drivers side floormat wet after rain

    Hi, Has the windshield been replaced recently, check for water coming down from the inside corner because of a poor seal? Has there been damage to that portion of the vehicle? Check for proper positioning of the weatherstrip seal. If you live in the rust belt, check for rust at the windshield...
  24. shoplizard

    Power seat weirdness with pictures - this truck is driving me bonkers

    You can buy a very nice leather seat cover online for around $100.00 (new). It will not come with the memory seat module. Also, a used module will likely need to be programmed to match your options. A new module will require programming. I would recommend just the program update first before...
  25. shoplizard

    Power seat weirdness with pictures - this truck is driving me bonkers

    I remember when I worked at a dealership some time ago we had a lot of the Tahoes and suburbans come in with all types of strange problems with the power seats. It turned out that the memory seat modules would develop a brain fart. If your vehicle is subject to this problem, have the software...

Forum statistics

Threads
132,394
Posts
1,867,355
Members
97,043
Latest member
zachdacoo

Latest posts

Top