Issues after ~3.5 wks and 550 miles

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KingTut4Runner

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Hope this note finds everyone well...

picked up an 06 SR5 4WD V8 about a month ago. It's a fun ride - have the following concerns though - wonder if anyone else has experienced these issues

1 - you know the popping sound your exhaust pipe makes as it's cooling down? Well mine makes that noise when it's cold and warming up - seems very weird. I usually hear two or three distinct pops of the exhaust pipe after starting the engine cold.

2 - you know the rubber strip that runs the length of the roof from front to back - sits directly under the roof rack - well today the friggin thing on the passenger side came loose on the freeway and was hanging on by just a few inches as it smacked the side of the truck. Luckily I pulled over before it came completely loose.

3 - how does the HAC work - isnt it supposed to keep you from rolling back while you're in D on a steep incline? Mine feels like it's still rolling back sometimes on steep hills. I thought the HAC is automatically activated. Do I have to push the DAC button to activate HAC?

4 - when I shift from R to D I hear a growning noise - like someone yawning out loud - very strange

5 - cant find the transmission fluid dipstick - is there one?

Any thoughts on these issues? Thanks.
 
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Hope this note finds everyone well...

picked up an 06 SR5 4WD V8 about a month ago. It's a fun ride - have the following concerns though - wonder if anyone else has experienced these issues

1 - you know the popping sound your exhaust pipe makes as it's cooling down? Well mine makes that noise when it's cold and warming up - seems very weird. I usually hear two or three distinct pops of the exhaust pipe after starting the engine cold.

2 - you know the rubber strip that runs the length of the roof from front to back - sits directly under the roof rack - well today the friggin thing on the passenger side came loose on the freeway and was hanging on by just a few inches as it smacked the side of the truck. Luckily I pulled over before it came completely loose.

3 - how does the HAC work - isnt it supposed to keep you from rolling back while you're in D on a steep incline? Mine feels like it's still rolling back sometimes on steep hills. I thought the HAC is automatically activated. Do I have to push the DAC button to activate HAC?

4 - when I shift from R to D I hear a growning noise - like someone yawning out loud - very strange

5 - cant find the transmission fluid dipstick - is there one?

Any thoughts on these issues? Thanks.
 
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Here is my unprofessional opinion on these items.

1. Don't worry about it at this point , probably nothing except thing's burn in during heat cycles.

2. Have dealer fix that , not good.

3. mine rolls back , usless function IMO , don't know if you have to have DAC engaged.

4. Don't know this answer , does the trans function fine ? If it does I would'nt worry about it right now.

5.Don't know this answer, sorry.

In my opinion , give the whole truck a little time to break in and loosen up. Everything is so tight on your truck right now.
 
You've got the 5 speed tranny and it does not come equipped with a dipstick. Unless your hauling everyday, you need not worry about fluid changes for the tranny (factory recomendation).

Like Falls said, just let the truck break in a bit more. It's still a virgin. If anything, just take it back to the stealership. I took mine back the day after I bought it because the alignment was wack'd. Don't lose hope just yet man, I don't know about the SR5 but the Sport is a Beast, and certainly no regrets here. Good luck with your issues man.
 
the HAC i dont know how steep does it have to be in order for it to work. im not sure if it really works though. ill try to ask that question on my next dealer visit.

you'll be alright.
 
Regarding the HAC, I can attest that it DOES work. I don't know how extreme of a hill you have to be on, but I really noticed it a couple weeks ago while 4-wheeling in Hollister. On steep hills, I purposely tested the system and noticed it's presence. Let off the brake while on an incline and the truck sits still, and even sometimes begins to inch up the hill at a slow idle. Pretty cool feature IMO.
 
I've had the HAC work for me, but I don't use it for a hillside parking brake, and that's not what it was intended for.

It's supposed to give you a brief moment to get your foot off of the brake and onto the gas while you are on a steep incline, and it keeps the truck from rolling backwards. Mine does just that.

However, If I take my foot off of the brake, and don't apply the gas, then the truck will start rolling backwards after a couple of seconds.
 
Atomic 4Runner said:
I've had the HAC work for me, but I don't use it for a hillside parking brake, and that's not what it was intended for.

It's supposed to give you a brief moment to get your foot off of the brake and onto the gas while you are on a steep incline, and it keeps the truck from rolling backwards. Mine does just that.

However, If I take my foot off of the brake, and don't apply the gas, then the truck will start rolling backwards after a couple of seconds.
Click to expand...

:iagree:

Mine behaves the same way. I think Atomic hit the nail on the head.
 
If I remember my user manual correctly, Hillstart Assist only works in low range. Same goes for Downhill Assist.
 
mtnracer said:
If I remember my user manual correctly, Hillstart Assist only works in low range. Same goes for Downhill Assist.
Click to expand...
On my 06 model, Downhill Assist works anytime it's needed. I don't have to be in the low range.

I haven't used the Downhill Assist but I think you're correct that it is used only when in low-range.
 
Purchased my 06' Limited 4X4 V8 5 days ago. Just turned 400 miles and NO issues at all. No vibrations, no rattles, no probs! I am very pleased with the build quality and overall fit/finish. Of course, anything man made can have problems. So, I am sorry to hear about your early misfortunes, but please believe me when I tell you that $ for $, the 4Runner is FAR better than the competition. How do I know? Well, I have owned most of the competitors vehicles and nothing compares to the quality of my Toyota. I hope you get the bugs worked out:biggrin2:
 
Atomic 4Runner said:
On my 06 model, Downhill Assist works anytime it's needed. I don't have to be in the low range.

I haven't used the Downhill Assist but I think you're correct that it is used only when in low-range.
Click to expand...
Downhill Assist Control requires you to be in low range -- it uses the brakes to prevent you from going too fast downhill.

Hill Assist Control is used to reduce rolling backward while you move your foot from brake to accelerator to start moving forward. It is not designed to stop you from moving backwards.

Suggest you do a search since both have been discussed extensively on the forum.
 
Atomic 4Runner said:
On my 06 model, Downhill Assist works anytime it's needed. I don't have to be in the low range.

I haven't used the Downhill Assist but I think you're correct that it is used only when in low-range.
Click to expand...

I think that Atomic wrote the wrong thing above...i think that the first sentence is about HAC, while the second sentence is about DAC.
 
thank you for everyone's responses - this is very helpful.

Also - sorry for posting this in two places - didn't realize I was voilating a board policy.

Actually would've prefered to leave it in the general discussion section where people were actually responding. Here in the problems & warranty section it's not getting exposure. But oh well - everyone's input has been very helpful thus far.

hope y'all'er out enjoying your weekends and not stuck indoors surfing the web - unless of course you've got a wireless card :) then you can do both
 
toto said:
... and here's the Hill Assist Control (for starting from a stopped state uphill):
Click to expand...

Thanks - these two bullet points make sense after what I experienced trying to challenge the truck on a fairly steep incline. Appreciate your help.

 The HAC operates approximately 5 seconds at the maximum. At this time, skid control ECU informs
the driver by the slow and intermittent sound of the VSC warning buzzer. After that, this ECU alerts the
driver by using the quick and intermittent sound of the VSC warning buzzer, and gradually releases the
brake hydraulic pressure in order to end the HAC operation.
 When the HAC is operating continuously while the vehicle is being driven on a slippery surface, the
temperature of the brake actuator in the hydraulic brake booster increases. After a prescribed length of
time elapses, the skid control ECU alerts the driver of this condition by causing the VSC/TRAC warning
light to illuminate. Also, the HAC operation is momentarily interrupted to protect the brake actuator.
When the temperature of the brake actuator decreases, the VSC/TRAC warning light turns OFF, and the
HAC is automatically restored to an operating state.
 
Thai said:
I think that Atomic wrote the wrong thing above...i think that the first sentence is about HAC, while the second sentence is about DAC.
Click to expand...
Thanks Thai, you are correct, I wrote it wrong.

Darn dyslexic keyboard!
 
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