Last post on Jul 17, 2013 at 5:25 PM
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Toyota Tundra, Transmission, Truck
#14 of 27 2008 Tundra 4WD quirks
Feb 27, 2011 (1:57 pm)
From all I can get from the downloaded files of the owners manual, If 4WD Lo is engaged properly, there should be no beeping sound or blinking mode lights. The only time the beeping and blinking occurs is if 4WD Lo mode is not properly engaged.
The only way I can properly enter 4WD Lo, is by having the vehicle motionless with no wheels spinning. Wheels not turned but, straight ahead, transmission in NEUTRAL. It should engage and there should be no blinking or beeping. If it does then, the transfer case control, is not functioning properly.
I have also found that even if the vehicle is fully stopped and in drive, it won't go into 4WD Lo from 4WD Hi, the Lo lamp will blink indicating "not fully engaged". It appears that if there is any loading or stress on the drive-line, while turning to 4WD Lo, it might not properly engage.
This is clearly a design related problem that Toyota will NEVER admit to. An obvious weakness in an otherwise decent truck. Time will tell whether these trucks age gracefully , or not.....
As far as getting it out of 4WD Lo, my only experience was again making sure there is no load on the drive-line, putting the switch into 4WD Hi, shutting the ignition off, then re starting.
If it is really "stuck" in 4WD Lo, the dealer will have to explain why that is OK or give you an answer as to the problem.
If it is a critter nest under the intake manifold, it is very hard to see. It just about takes a fiber optic light to see under the manifold, by removing the foam rubber blocks from around the manifold openings.
Good Luck and let us know the results.
Also .....Do not click on any links offering a free Toyota service manual. I did and picked up some kind of trojan horse or virus in my PC.
#15 of 27 Tundra Knock Sensor wiring harness
Mar 01, 2011 (12:58 pm)
Hello there. Did you ever come up with a solution to this. My wife is crying (really upset) over this as this is the 3rd time this has happened in 60 days.
I need a solution, we have tried mouse traps, dryer sheets, ect. I will do doing the work my self this time as we are out of $$$ but also was going to see if there was a way of protecting the cables.
#16 of 27 Re: Tundra Knock Sensor wiring harness [fasteddy72]
Mar 01, 2011 (3:02 pm)
This has happened to me with just about every truck I have ever owned. No manufacturer seems to be immune to the dreaded mouse nest. My last vehicle a 97 Ford F250, was so infested, I had to remove the intake manifold and a bunch of hardware to re-connect one key wire that "mickey" had eaten through. Luckily I had a shop manual which guided me through it or, I would have spent a big pile of cash at the Ford dealer.
Gosh, if it has happened to you 3 times in 2 months, it is probably the same mouse declaring war on you!
A mouse actually squeezed into the ventilation grille on the hood of my 72 Chevy Pickup and ate through the squirrel cage rotor on the heater fan (I always wondered why they called it that?) and camped out in the heater chewing everything in sight.
I have never found a chemical or animal irritant that you could safely sprinkle on your engine. I am getting all kind of advice from "experts" who have never had to clean up one of these messes. Some examples: Moth balls in a plastic bag with some holes poked in the bag, Dryer sheets like snuggles...etc., peppermint which mice allegedly don't like. Oh and this one.....Make your engine compartment smell like a cat because.......you guessed it!.......mice don't like cats!
My problems all occurred while parking close to a tree line. When I parked my vehicle out in the open and closer to the house, I never got a critter invasion. My theory is mice don't like to run around out in the open because of eagles, hawks, and other predators. Assuming it is the same mouse that has invaded your truck, I'd also try some traps with peanut butter. I know that works, but nail them down somewhere under the hood so the caught critter doesn't hop into some un-reachable place where it will die and stink up the vehicle.
I intend to try this and some variation of the peppermint smell. Still looking for a shop manual for the Tundra in case I have to do the repair again.
#17 of 27 Re: 4WD/Transmission failure 2008 Tundra 5.7 6 sp? [mcsmadison]
Mar 12, 2011 (7:02 am)
you sound like two unemployed disgruntled chevy truck drivers that need to get a life! NO problems with my 07 tundra or my 01 4 runner or any of the 4 toyota trucks ive owned and put over 280,000 miles on each.P,S. you sound alot like chevy sales people ...
#18 of 27 Re: 4WD/Transmission failure 2008 Tundra 5.7 6 [nri201]
Apr 03, 2011 (8:25 am)
Toyota has a fail safe sensor in the transmission that prevents the truck from shifting or moving when the temperature of the fluid gets too hot. Great idea but need to tell consumers about it too.
#19 of 27 2000 Tundra Auto Trans Slippage
Jun 13, 2011 (12:02 pm)
I have a 2000 Tundra with a 4.7L engine and automatic transmission. The transmission seems to go into neutral while stopped and then hesitates to go back to first gear when I hit the accelerator. The truck has just over 100,000 miles and has been serviced. The problem did go away after I had the radiator replaced about a year ago but it has resurfaced recently.
#20 of 27 Re: 4WD/Transmission failure 2008 Tundra 5.7 6 sp? [mcsmadison]
Jan 21, 2012 (4:26 pm)
good luck i had a 07 the front diff and two cv axles were replaced not under warrenty at 62000 miles i called toyota for help and was told i wasent a loyal toyota customer because i only had one toyota. i did a lot of looking and found a t-s-b bulliten about clunking noise heard in front ends they have a shim kit thet will be installed that is if someone hears the noise i was going to sue toyota and the dealer when toyota refunded me the 4,500 i had paid to replace the front end two years later. i have a 2011 tundra now and have issues with this one with only 13000 on it after this one i will never buy another tundra
#21 of 27 SBJR
Feb 05, 2012 (4:10 pm)
My 2008 Tundra 4WD makes a clunking clashing sound in the front end when the rear wheels slip but sometimes at other events. Selecting 4WD high range most often causes the transmission to shift very hard and loud. It is impossible sometimes to get this truck into 4WH low. I bought this truck new and have had it back to the dealer twice with no help. 35,000 miles. Any ideas?
#22 of 27 Re: SBJR [sbjr]
Feb 06, 2012 (9:02 am)
Sounds as if you're using 4WD when you shouldn't be. You have a "PART-TIME" 4WD system that should NEVER be engaged except on a KNOWN slippery, low-traction surface.
Also, even on a low traction surface you should disengage 4WD once underway, traveling above ~20-25 MPH.
Since 4X4 mode "4WD low", uses a spline/dog type clutch so it will often be difficult to engage, trying rolling slowly, VERY slowly, backward while shifting into 4X4 mode.