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  1. nonickatall

    Engine issues

    Drill out, cut a new thread, and screw in a repair thread insert. This will only work well, with the cylinder head installed, if you have enough space to work. What means overheating? Do you have to high temperature on the gauge, or is a really to hot? Did you change the thermostat?
  2. nonickatall

    01 Shutting off no crank, no start.

    Sounds to me like s stuck magnetic switch in the starter. Try to bridge the starter relais. Then you know if something else, like security, a defective ignition lock or bad grounds are the issue. Or if the starter itself is the problem.
  3. nonickatall

    01 Shutting off no crank, no start.

    I would first check for corroded grounds. Very common issue..
  4. nonickatall

    Smoke testing Procedure help needed

    The cables from the ignition coil to the spark plug. I would especially look on the plug on the spark plug... Excuse my bad English...
  5. nonickatall

    Where should I start?

    Did you exchange all four? Did you use differend sondes for pre and after cat?
  6. nonickatall

    Where should I start?

    But that would not explain low voltage on both oxygen sensors.. I would highly recommend to take a multimeter and messure the oxygen sensors. Fyi Maybe you have a ground problem, water in a connector or the wiring harness to the O2 sensor is damaged. You wrote that you swapped o2 sensors...
  7. nonickatall

    Smoke testing Procedure help needed

    First i would check, if all ignition cables sit tight... Sounds like one is loose..
  8. nonickatall

    2002 Tahoe starts great when cold but will not right after driving

    Sure if the camshaft position sensor is not available, your engine don't know when to inject and when to ignite..
  9. nonickatall

    NBS / GMT800 Escalade rear window & 3rd brake light for sale.

    What means "bump" in that context ...
  10. nonickatall

    Problems with worn valves. Need good advice

    I am looking for good advice to refurbish the cylinderheads. I will do that first and I'm thinking about what mudsport96 wrote, just to swap the cylinderheads and inspect the cylinders when the heads a removed. My plan with the cylinder heads is first to clean the valves and the heads...
  11. nonickatall

    Problems with worn valves. Need good advice

    Work like a pro
  12. nonickatall

    2002 tahoe euro version

    Where was your car delivered? I know three gmt800 including mine, which where delivered in Germany and they don't had that programming... But if that is a solution, it is good...
  13. nonickatall

    What did you do to your NBS GMT800 Tahoe/Yukon Today?

    Changed the blend door actuator. I had since a long time I had the problem that the nozzle of the fan to the right of the radio would suddenly emit hot air every now and then and then regulate normally again. This happened every now and then during longer journeys. Yesterday I drove 900 km...
  14. nonickatall

    2003 tahoe no crank no start

    You can simply bridge the two contacts with a not to thin wire.
  15. nonickatall

    2003 tahoe no crank no start

    proceed logically first. Identify the relay for the starter and measure with a multimeter on the starter relay socket whether there is power when you try to start the ignition switch. If there is no power, you have a problem with the immobilizer, the ignition lock, the ECM or whatever. If...
  16. nonickatall

    Problems with worn valves. Need good advice

    So today drove 900km through Germany to get two used 317 cylinderheads in a very good condition, a rebuild automatic transmission and some other spareparts for realy good money.. So it was worth to go that long trip.. .. Now i need gaskets and time and then the rebuil will start...
  17. nonickatall

    SOLVED - ABS light on after new front hub assy install(both sides)

    Measuring ohms makes no sense, ABS sensors can only be measured with an oscilloscope. If you have unplugged the old ABS sensor and plugged the new one in correctly, it should work. Normally the sensors need to travel a few meters to register with the car and for the ABS error to go away...
  18. nonickatall

    Mircophones in roof of Denali making a Humming noise

    He is right, that is a little fan and a sensor for the driver temperature for the air conditioning system. That is no microphone. Mine as well made noise, so i blew with pressurized air through the grid, since then there has been silence.
  19. nonickatall

    Cleaning Catalytic Converters

    I have cleaned catalytic converters many times. The problem is also that the catalytic converter gets clogged from the front with soot particles and other dust. You don't need any cleaning fluid for it. The prerequisite for cleaning the catalytic converter is, as already correctly stated...
  20. nonickatall

    Problems with worn valves. Need good advice

    Yes thats true, but i have also the problem of a weak compression on cylinder 5 and i would as well check the camshaft, the main bearings of the crankshaft and piston rod as well, as i would change main crankshaft sealings and clean and check the piston rings, and look for the barbell. And my...
  21. nonickatall

    '03 Denali air ride question

    I'm not familiar with the system on our cars, but I am very familiar with an airride system on a Mercedes Benz S-Class and I suspect the system is similar in function. You have a compressor, a pressure accumulator, a valve block, a high sensor, tubes from the compressor to the accumulator and...
  22. nonickatall

    Brakes

    @DrummerDude70 Propably your pad rotor combination is the problem.... But thats only an idea. Btw, i play the drums too. I would not call me a drummer but i love musik and i love to play. Thats me on the drums. I recorded myself on my roland TD 30 kv in one take...
  23. nonickatall

    Problems with worn valves. Need good advice

    I removed today all rocker arms, inspected all valve tips and as well made a pressure loose test on all cylinders. Six of eight intake valves are worn in. All more or less the same. Only two intake valves look ok. All exhaust valves are not affected. Pressure loos test was on all cylinders...
  24. nonickatall

    Problems with worn valves. Need good advice

    I understand what you mean. I saw some rebuilt videos from the LS/LQ engine. Isn't the risk not rather, that if you have too long pushrods that your valve is going to contact the piston? So the clearance of the piston is the problem, with the lengths of the pushrods from what I understand? As...
  25. nonickatall

    Help understanding the 5.3

    Without having seen the chips myself and having my own opinion, I wouldn't be too worried if the engine itself is running, doesn't make any noise, has oil pressure and this didn't happen during the last oil change. But I would take the oil pan down and replace the O-ring and the pressure...

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