Top 10 2005 Chevrolet Tahoe Questions & Answers

I have a 2005 Tahoe that recently had a similar problem. To resolve, I did the following.

1. Change the transfer case fluid (Which you already did)
2. Change Gears to 4L while in neutral, change back to drive, and drive slowly 50 yards or so.
3. Change Gears to 4H while in neutral, change back to drive, and drive slowly 50 yards or so.
4. Change Gears to 2H while in neutral, change back to drive, and drive normally for a couple of miles.

This will cycle the fluid within your transfer case, and hopefully clean out the sensor. I did this, and my Service 4WD light went away after one day of normal driving. Hope this helps. Note: When I went into 4L the first go around, it had a hard time shifting due to non use. I changed between 4H and 4L a few times until it got smoother.

Turn the ignition key to the RUN position. Fully push and release the accelerator pedal 3 times within 5 seconds. If the CHANGE OIL SOON light flashes 2 times, the system is reset. However, if the light comes on and stays on for 5 seconds, the system did not reset. Repeat the procedure if the system does not reset.
This is for a 2001, I couldn't find info for a 2005, also said that a phone call to the dealer should answer it over the fone.

the check engine light is indicating a problem with a control system. The resulting codes need to be fixed, then the light will be reset or go out by itself. If the problem resolves itself, or is intermittent, the light may go out by itself

You usually don't need to pull the heads. I'm not exactly familiar with that engine but 50% of the time you can get a magnet and pull them out through the valve covers. But to make sure it's the lifters. Let it run until it's warm and remove the valve covers. You at that point should push with your finger on the push rod side of the tappet. If one of them ticks (you will be amazed you just did it with your finger) thats the bad one. However the whole cause of the problem with hydraulic lifter is oil pressure. The 0-ring seal between the oil pump screen and the oil pump may be cut, causing aeration of the oil. Thus lowering oil pressure causing the tick. It is normal for some LIGHT ticking to occur in the 4.8L and some noticeably louder ticking on startup. Good luck!

Try unhooking one of the battery cables and leave it off for at least 20 minutes. When you hook it back up the computers should re-boot. That has solved problems for me with heater, interior lites, power windows, AC, day time running lites, power mirrors, fast idle, rough or slow shifting, CD player, and wipers on GM autos and S-10 PU and Dodge trucks. None of the switches are connected to the device they control anymore. The switch tells the computer to open the window and the computer sends a signal to the window motor. When the computer gets confused strange things will happen or not happen. Things like one headlight stays off etc. I actually had to do it twice on my Bonneville because the first time the AC blower would only work in low and medium. After the second re-boot, everything was fine. Of course you may have to re-set your radio stations.

If that does not work, open the hood and see if the compressor clutch is engaging. If not jiggle the wire to it and check the fuse for the AC. If the clutch is turning and/or the fuse is good then you need to take it to a mechanic that is licensed to do AC. If your freon is gone, he is prohibited by law to recharge it until he repairs it and can verify that there are no more leaks.

There is a diagram in your fuse box showing the exact fuse location.The fuse box is visible when you open the drivers side door. It is small triangle shaped plastic cover on the side of the dashboard next to the door frame, You cant see it with the door closed. The inside of the cover has a diagram that identifies which fuse is which.Check it.Thanks.Helpmech.

I suggtes check the position CIG LTR for Cigarette Lighter. The underhood fuse block in the engine compartment on the driver's side of the vehicle near the battery. Lift the cover for access to the fuse/relay block.

To remove fuses, hold the end of the fuse between your thumb and index finger and pull straight out.



Also, in this link could donwnload the Owner's Manual for the 2005 Chevrolet Tahoe.

Hope this helps to solve it (remember to rate and commene this answer).

There are several things that few people know about starting cars in cold weather. 1. Check your battery to make sure it is not rusted, leaking, and has a charge 2. Jump start your battery with another car, even if you believe the battery is good, this often times will still start your car. 3. If your engine is cold, and you have an older car, ensure to get your fuel lines to the engine flushed or have fuel injection service performed 4. The engine tends to warp the same way wood does during the extreme cold, do not be afraid to continue trying to warm up the engine by constant cranks with it is cold out. Your not going to hurt the car, the worse that could happen is too much fuel will enter the carborator and cause flooding in the system to occur. Wait 20 minutes if this happens and start to crank again 5. Bad spark plugs are a major reason why many cars take a very long time to start 6. Please have your spark plugs removed and exchanged for new ones. Over time, spark plugs become fowled and prevent the car from starting even thou you hear cranking!!!

more solutions posted in the comments, let me know if you can not find them

Ya le pusieron el escaner y sale falla en el pedal de aceleraci?n pero ya le cambie el sensor del pedal y el throttle body y sigue la falla

the liftgate relay it is located on the "B" pillar passenger side This is the door post between front and rear seats. if the fuse is good listen/feel this area for the relay clicking.