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  1. Mechanic421

    Anti-theft

    Forget it last question! Du no pressure sensor ! I think I answered my own question.
  2. Mechanic421

    Anti-theft

    does a 06 Denali have pulse width modulation for the fuel pump? Or is it regulated in the tank? I am trying to interrupt the fuel pump circuit for an anti-theft device.
  3. Mechanic421

    Raising Motor Question

    Ok so I have found the easiest way I have found. Pull inner fender wells ,if you heat the mount bolts to frame to release the loctite. Sometimes they will break. I loosen both sides,then the side I am working on is the side of the pan I jack up with a small 2by4 but flat. Be careful first if you...
  4. Mechanic421

    400+ horsepower?

    the cheapest way would be cam,lifters,beehive springs,.080 wall pushrods,headers(but some people swear by stock manifolds) larger injectors and tuning. Exhaust and duel valve springs would be recommended. Double value springs and exhaust can be added later if on a budget. I am not sure but 2010...
  5. Mechanic421

    400+ horsepower?

    Easily be done with your stock heads.
  6. Mechanic421

    Haven't seen this before

    Whole throttle body. And a pigtail.
  7. Mechanic421

    Making me nuts!

    Could in the door?
  8. Mechanic421

    Alignments Suck -- What Am I Missing

    Before I left Florida , I had 15 years on a alignment machine. Getting the wheel straight is probably the hardest part, but very doable. You just have to get used to the machine. Has anyone looked at the rear suspension?
  9. Mechanic421

    Need help

    Ok so block the tires and put the transmission in neutral and see if unjoints are loose. Look for rust at caps. Sometimes you need to remove the driveshaft to find a stiff one. And is the vibration in the steering wheel or your butt?
  10. Mechanic421

    No Power at OBD Port

    Cigar fuse under hood
  11. Mechanic421

    Need help

    Is the vibration all the time or does it diminish when coasting and get worse when you accelerate.
  12. Mechanic421

    Lq4 rering

    I will maybe wait than to save for the terras.
  13. Mechanic421

    Lq4 rering

    I am not that good at that shit I tried.
  14. Mechanic421

    Lq4 rering

    I went with a summit bronze rocker kit. And I was expecting some sawing machine sound but I hate it. If you listen from the top all you can hear is the injectors. If you listen through the fender well looking at the headers sounds like a sewing machine. No ticks ,snaps are anything like that. So...
  15. Mechanic421

    Lq4 rering

    I can not figure out how.
  16. Mechanic421

    Lq4 rering

    Finally in and running! Happy dance ! Just need to data log and send off to black bear. Wow 578 exhaust lift , you can hear the valves slam shut through the headers. I will try to post a video.
  17. Mechanic421

    Layman's Terms

    Stability control firms or softens damping. In conjunction With the brakes.
  18. Mechanic421

    2002 Tahoe

    You should be good. I have my keys turned up and airlift bags in the rear running 285/70/17 . No trimming at all .May have to trim bumper or inner liner. Almost every lift I have installed on GM Trucks I would have to trim the bumper and inner liner plus maybe wheels.
  19. Mechanic421

    315s on my hoe

    Sometimes stock wheels will not work with lift kits . Need to make sure they will work. Spacers may work but I don’t recommend it.
  20. Mechanic421

    Scratching my head after transfer case fluid change...

    Each are different you really need to check the manual. Mine takes atf and I change it often. I really don’t like autotrac! If my case did call for it I would use it. But I would change it even more often. I am not a fan of autotrac! Some say you can use good synthetic atf I have not experienced...
  21. Mechanic421

    Scratching my head after transfer case fluid change...

    If transfer case was initially over full seal between transmission and transfer case is leaking. Transmission is probably low.
  22. Mechanic421

    Oil Pressure

    I have used a oil flush machine and they work great. But they use a filter to catch the trash. I have never tried with just flush additive, I would be nervous with out the machine. Back in the day we would us transmission fluid at idle for like 30 minutes. But try at your own risk.
  23. Mechanic421

    Key FOBs not working

    I have been having fob issues my self lately. But doubt they are related. My range was real bad had to be right up on the truck for it to work. I was having tpms issues also. I switched out my right side window switch but no good. I was getting ready to post on here for help. Then gave it one...
  24. Mechanic421

    Oil Pressure

    So old school R code 5.7 . With 250000 best case hopefully just a gage issue,but I am sure you know 250 and 21years old. First is test. There could be a number of things going on. I would pull a little oil out and look at it in the sunlight for metal flakes. If on flakes hopefully maybe a...
  25. Mechanic421

    Oil Pressure

    What is your year,make and engine size? Mileage? You can use the old sender to match up a adapter.

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