2010 5.7 with no 4hi or 4lo when cold (and it's been cold and slippery!) - TundraTalk.net - Toyota Tundra Discussion Forum

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post #1 of 10 (permalink) Old 02-25-2019, 07:12 PM Thread Starter
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Unhappy 2010 5.7 with no 4hi or 4lo when cold (and it's been cold and slippery!)

Hi all,

I've been searching but my Google-Fu is weak on this one. I have a 2010 Quad Cab with the 5.7 that is having some 4wd difficulty.

My wife drove 5 hours in a blizzard on slushy roads in 2wd. The truck was then parked for a couple of days in -16 Celsius weather. We then took the truck and she wouldn't go into 4hi or 4lo when we tried to get out of a parking lot. (She would continue to blink the 4hi light on and off no matter if we moved the switch to 4hi or 2hi, even after restarting). We then left the truck idling for an hour in our driveway and 4hi worked fine again. I attributed it to something being iced up. I parked her in a friend's garage for about 24 hours to let her warm up and dry out. The truck was fine at this time. The temps stayed cold for days and the next time I tried her 4hi wouldn't engage again. I brought her to my friends garage and left her for 48 hours. Lots of water seemed to come from up underneath and soaked his garage floor. 4wd was working fine again. Another 24 hours in the driveway at -12 Celsius and 4hi will not engage again.

Any thoughts?

Extra info:
Anti-slip light was on once while the 4hi was flashing.
This truck is used in 4hi almost daily, especially in the winter, so it definitely isn't from lack of use.
Stop, reverse, forward, stop, reverse,... nothing helps to get her in 4hi.
Leveling kit installed approximately 4 years ago.

tl;dr: No 4hi when cold. Light just blinks. Works fine when warm. Wife is mad.


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Last edited by Rene Jeddore; 02-25-2019 at 07:17 PM. Reason: Added extra info.
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post #2 of 10 (permalink) Old 02-25-2019, 10:01 PM
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Water in actuator?

Seems like its becoming a rather common issue under certain conditions.
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post #3 of 10 (permalink) Old 02-27-2019, 08:49 AM Thread Starter
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Originally Posted by sundance View Post
Water in actuator?

Seems like its becoming a rather common issue under certain conditions.
I was able to get a code out of her, C1340 - Center Differential Lock Circuit. Everything points to the actuator. I am thinking there is water in there as well.

I let her idle for an hour again yesterday and she went into 4hi without any issue. She's staying there now and will only be used when I need her, in 4wd.

I have an appointment made at Toyota on Monday and will try and update this post after they look into it.


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post #4 of 10 (permalink) Old 03-04-2019, 08:29 PM Thread Starter
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Unhappy

Went to the dealer today and this is their diagnosis.

CONDITION: CHECK CAUSE - 4x4 WILL NOT ENGAGE IN COLDER TEMPERATURES,
WHEN VEHICLE WARMS UP,WORKS FINE.WHEN IT IS COLD & VEHICLE
IS LEFT IN 4X4 OVERNIGHT IT WILL NOT DISENGAGE WHEN COLD
ALSO.4WD LIGHT WILL FLASH & SKID LIGHT WILL COME ON.
CAUSE: CHECKED 4X4,WORKING OK AT THIS TIME.NO CODES.FRONT ACTUATOR
MOTOR SEAL IS RUSTED,WATER MAY BE GETTING IN AND FREEZING.
CORRECTION: IF PROBLEM CONTINUES ON A MORE CONSISTENT BASIS,CUSTOMER
MAY WISH TO REPLACE FRONT ACTUATOR.
They didn't want to remove the actuator as they said it wasn't recommended to remove it unless you were going to replace it. Approximately $900 for a replacement, installed, out the door.

I'll probably pick up an aftermarket one from RockAuto and head back to Toyota for the install, if they'll do it. Their install quote was $200.

Thoughts??


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post #5 of 10 (permalink) Old 03-04-2019, 09:24 PM
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It’s 1 connector, 4 bolts and some silicone.
You could do it yourself and save the $200

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post #6 of 10 (permalink) Old 03-04-2019, 09:36 PM
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I will shit a pile of green peas if a Toyota dealer installs a customer supplied part. Add a side of cream corn if it's a non-OEM part.

I'm not completely useless. I can always be used as a bad example.
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post #7 of 10 (permalink) Old 03-05-2019, 09:45 AM
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Originally Posted by McGovTundra View Post
I will shit a pile of green peas if a Toyota dealer installs a customer supplied part. Add a side of cream corn if it's a non-OEM part.
Good one .

They wont take kindly on that plan . NOT how ANY business works . A business needs mark up on parts , simple as that

Ps. I like the new facepalm emogy

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post #8 of 10 (permalink) Old 03-05-2019, 09:47 AM
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Originally Posted by McGovTundra View Post
I will shit a pile of green peas if a Toyota dealer installs a customer supplied part. Add a side of cream corn if it's a non-OEM part.
Someone needs to archive this gem for documentation and future uses .

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post #9 of 10 (permalink) Old 03-05-2019, 12:11 PM
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Someone needs to archive this gem for documentation and future uses .
I gots to go whit what yawl and duh Gov tink on dis one.

And, not to worry about "archiving", duh Gov has a million mo' where dis came from.


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post #10 of 10 (permalink) Old 03-05-2019, 02:36 PM
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The front actuator is easy to replace, you can do it in less than an hour.

Check the vent tubes on both actuators, they tend to crack, fall off and let water in. I had to replace the actuator on the differential due to water damage, it was cheaper to buy a salvaged differential than replace the actuator.
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