Search results

  1. R

    The mystery noise game!

    Another option. Buy four good quality jack stands and an automotive stethoscope. After jacking up all four wheels start engine and put in all wheel drive if you have that option. Have a helper "drive" the car while you roll around on a creeper with the stethoscope. You should be able to...
  2. R

    Recirculated air button

    Sounds like the air door actuator isn't functioning. If it is under warranty, you could see if the dealership will fix it. There may be a code set by the BCM (body control module). There may be a sensor that tattles if the door does't move correctly. Less than 35K miles it should be under warranty.
  3. R

    Fuel Level Sensor ... self-corrected?

    One subject that is never discussed is the quality of the fuel we put in our vehicles. There are a lot of complaints about small engine fuel systems being ruined by old gas with ethynol. So I have started wondering about how old some of the different brands of fuel is. If we buy from a station...
  4. R

    Who has replaced their lifters? 5.3 T

    I second the above comment about the o-ring. The clue is that the lifter only ticks when warm and at idle. The oil is thinnest when warm, oil pump output pressure is lowest at idle, especially when warm. So combine that with a flat o-ring, you got lifter tick. You might be able to fix it with...
  5. R

    '01 Tahoe whistling noise *FIXED*

    If you have an automotive stethoscope that helps to check bearings. There is also the ac compressor clutch. You can turn on the compressor to see if the squeal goes away or changes.
  6. R

    Tcase took a dump?

    $300 is a good price, change out the fluid in the replacement one. Install the pump rub fix before install (less than $50 for parts including seals). The oil lube pump was designed in these transfer cases to guarantee GM lots of replacement sales later in it's life. Google GM pump rub. That...
  7. R

    Heater being weird - thoughts?

    I have started having a similar heater issue, a random period that may last an hour or less or more,with one side being cold, the other side hot. I think I will replace the air temp sensor on the driver side, it is cheap and may be starting to fail. The actuators seem to function, since...
  8. R

    Exhaust Tailpipe Routing w/ New Muffler

    Is it possible that the lack of an exhaust pipe cut down on the scavenging effect of the exhaust gases? Valve overlap in engines allows cylinders to help each other get those exhaust gases out. The exhaust system diameter, length of tubing (longer tubing provides a kind of hallway for those...
  9. R

    Bad water leak

    The use of o-rings in these parts is hard to justify for anyone except the factory. O-rings are a part that will shrink and leak. The plastic shrinks as well. There should be a scheduled replacement of these things every 10 years. Many GM suv's with the rear heat have small leaks that aren't...
  10. R

    OEM Engine Block heater

    Besides the obvious benefits for block heaters before cold start up, the other advantages most don't talk about is that short commute times are very hard on vehicles. The cold engine operation for a short distance does not evaporate moisture that accumulates in the engine oil and the...
  11. R

    4l80 swap with manual transfer case

    Dan, that sounds about right. So a brake gets applied to the wheel that is spinning faster than the others. And the brakes try to correct vehicle rotation when it does not match the steering wheel position information. A snowy parking lot would be a good time to test drive with and without...
  12. R

    Traction Assist is DEAD

    Sometimes the problem is as simple as changing out the speed sensors-no frequency can mean no signal received from the sensors-I believe they are located on the transfer case-left and right. Have you tried to have the faults cleared? There are many GM products with service TPMS tire pressure...
  13. R

    Clear Condensate Under Oil Cap

    Blackstone does good work, very accurate testing, will email you the results, with comments. Tell them your concerns when you call to order the test kit. On another note, they also test tranny fluid
  14. R

    Coolant Missing, Running Hot, White Smoke, Burning Oil

    You can buy a USB based borescope or small camera for around $20 online or at computer stores, they come in different cable lengths, and the camera is just some small led's around the lense, some as small as 5 mm in diameter. It just plugs into a usb port on a laptop. Remove the spark plugs...
  15. R

    Need a Transfer case

    drivetrain.com is one source of parts, they have a phone number listed on their website, lists of parts, drawings, very helpful folks
  16. R

    4l80 swap with manual transfer case

    The obvious advantage to not having AWD is that you are no longer wearing out all that very expensive stuff up front. One question I would have for those smarter than me is how does the vehicle react electronically to no longer be able to totally control during limited traction events, even...
  17. R

    Whats to be made of these codes

    First of all let me say that my dog who is growling in his sleep and I, a retired electrician can help a little bit, for what is worth, but obviously you can go back to your electrician again. First of all, if you want to understand some of these codes more clearly, use youtube search function...
  18. R

    Engine running cool (185*)

    Your temp sensor is probably starting to fail. Go buy an infrared sensor at HDepot for $30 and shoot around the hoses, pump, radiator hose connection. You may be surprised. If a new sensor doesn't fix the incorrect gauge, there are multiple companies that will repair your gauge module at a...
  19. R

    Clear Condensate Under Oil Cap

    You have cracked heads, most likely Castech. The only way you have coolant on that cap is through small cracks often around the head bolts. Your symptoms are indicative of vaporizing of the coolant and it condensing on a cooler surface. The amount of coolant is so little at this time, the oil...
  20. R

    2004 Tahoe Need Help Installing Rear Overhead Console

    Yes there is a bracket--maybe a junkyard?
  21. R

    Heater stopped working

    If you look dead center above the motor at the fire wall, you will see the heater hoses and two tees. That is where the rear taps off to run back to the other heater core. A bad design, with o-ring seals, prone to small leaks. You can either use an infrared temp device to monitor the temp or...
  22. R

    Front A/C blows warm air on 2001 GMC Yukon XL

    If you think about the cheap parts they use in these actuators, it is amazing they last as long as they do.
  23. R

    what is inside the back trim, above the rear tire

    Michael, in the picture you have provided, is that the BCM under the second row drivers side seat and is that the common place for BCMs in different years?
  24. R

    Fuel Gauge Issue - Apparently I Have a 26 Gallon Tank?

    I think that your experience is common with these 26 gallon fuel tanks. Most manufacturers deliberately mislead us to make sure there is enough fuel to cool the fuel pump. For some reason, empty on the gauge is about 20 gallons used out of 26. So your gauge is off even more if you are filling up...
  25. R

    Remote Door Unlock Rarely Works

    Does your car battery seem to have enough power to crank the engine at a normal speed? If the car battery were weak, that could be a cause. I don't know where the security module is that receives the signal from your remotes, but if you could find it, measure operating voltage at it's input. The...

Forum statistics

Threads
132,425
Posts
1,867,921
Members
97,105
Latest member
Jellis02

Latest posts

Top