1. Welcome to Tundras.com!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tundra discussion topics
    • Transfer over your build thread from a different forum to this one
    • Communicate privately with other Tundra owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

2006 4.7 highway speed issues

Discussion in '1st Gen Tundras (2000-2006)' started by knock-knock, Jan 14, 2022.

  1. Jan 14, 2022 at 9:52 PM
    #1
    knock-knock

    knock-knock [OP] New Member

    Joined:
    Jan 14, 2022
    Member:
    #73148
    Messages:
    15
    Gender:
    Male
    First Name:
    James
    Vehicle:
    2006 Tundra DC 2WD
    Hi everyone. I have a 2006 toyota tundra dc 2wd with the 4.7 V8. She is currently at 286k miles. Last summer, my truck was having issues when on the freeway. I’m driving consistently at 70 MPH @ around 2.5k rpm. After driving on the freeway around roughly 20-25 miles (distance not speed), the engine will lose power and a knocking will occur with strong smoke coming out the tailpipe. No CEL or anything odd with coolant or oil pressure gauges. I have to limp it at 20 mph and it seems to have little power, and when i do gas it, the knocking and the smoke will return. When this happened last summer, dealer replaced on the pcv valve and everything seemed fine after that. 10k miles later, back to square one when I noticed smoke on startup and the whole freeway crap. I have been keeping it off the freeway since I seen it last month, but tried it again today after replacing the PCV myself, and, well it is still happening with the same symptoms I listed above. I am starting to think it’s the valves. Any ideas guys? Also, check engine light has come on intermittently since about September, but it always goes away on every other drive. Next time I get it, I will try a scan on it, but I doubt it’s related since it doesn’t activate when the smoke and knocking occur…
     
    Last edited: Jan 14, 2022
  2. Jan 14, 2022 at 9:57 PM
    #2
    knock-knock

    knock-knock [OP] New Member

    Joined:
    Jan 14, 2022
    Member:
    #73148
    Messages:
    15
    Gender:
    Male
    First Name:
    James
    Vehicle:
    2006 Tundra DC 2WD
    Also, I forgot to mention the smoke consistency, It’s a thick white/blue smoke and it has like a burning rubber, skunk kind of smell. Burning oil possibly?
     
  3. Jan 14, 2022 at 10:04 PM
    #3
    knock-knock

    knock-knock [OP] New Member

    Joined:
    Jan 14, 2022
    Member:
    #73148
    Messages:
    15
    Gender:
    Male
    First Name:
    James
    Vehicle:
    2006 Tundra DC 2WD
    https://youtube.com/shorts/U8toipU95SA?feature=share

    Link to video, if it doesn’t work let me know. You will hear the knocking right when I accelerate and after I complete the turn. You may hear a squeaking noise after the knocking, but that’s a whole other suspension related can of worms, just disregard that for now. Didn’t film the smoke, apologies
     
  4. Jan 14, 2022 at 10:19 PM
    #4
    alb1k

    alb1k Always Coming From Take Me Down

    Joined:
    Mar 6, 2021
    Member:
    #60092
    Messages:
    6,564
    Gender:
    Male
    Left Coast
    Vehicle:
    05 2WD DC w/ attitude
    It's good
    Fair amount of wind, how does it sound inside with windows up?
     
  5. Jan 14, 2022 at 10:24 PM
    #5
    knock-knock

    knock-knock [OP] New Member

    Joined:
    Jan 14, 2022
    Member:
    #73148
    Messages:
    15
    Gender:
    Male
    First Name:
    James
    Vehicle:
    2006 Tundra DC 2WD
    I knew the wind noise was gonna be a problem. Anyways, from the inside, the noise is audible enough but is kind of hard to hear when going at 70 mph
     
  6. Jan 14, 2022 at 10:30 PM
    #6
    knock-knock

    knock-knock [OP] New Member

    Joined:
    Jan 14, 2022
    Member:
    #73148
    Messages:
    15
    Gender:
    Male
    First Name:
    James
    Vehicle:
    2006 Tundra DC 2WD
    https://youtube.com/shorts/8gQSLAqnlJ4?feature=share

    Here is the video my brother took from last summer when I hauled ass into the dealership. You can hear the sound from the driver’s window (open) and see the smoke. I’m not sure why my videos are being uploaded as shorts lol
     
  7. Jan 15, 2022 at 7:58 AM
    #7
    N84434

    N84434 In the Frozen Tundra

    Joined:
    Jan 22, 2020
    Member:
    #41580
    Messages:
    1,087
    Gender:
    Male
    First Name:
    Jim
    Milwaukee WI.
    Vehicle:
    2001 Limited TRD
    1) Does it smoke all the time, or only when freeway driving?
    2) Is valve train noise present when you first start the truck, or is that related to freeway driving as well?
    3) Power loss also related to higher speed driving only?
    4) How is your oil level after its been smoking for a while?
    5) Is there a noticeable miss when it starts to chug-chug? It would be interesting to see what CEL code it displays.

    I would do a compression test (very easy to do) and see what kind of numbers each cylinder is producing. Depending on those results, I would then pull the right valve cover (easier of the two) and see if you are dealing with sludge or something else that is producing excess crankcase back pressure.

    And welcome aboard!

    edit... I just watched the first video depicting the knocking noise. Perhaps its an issue with the crank sensor? If that's intermittent, than it may not throw a code all the time.
     
  8. Jan 15, 2022 at 8:01 AM
    #8
    dbittle

    dbittle Middle Age Member

    Joined:
    Aug 10, 2020
    Member:
    #50632
    Messages:
    227
    Gender:
    Male
    Huntsville AL
    Vehicle:
    2006 V8 RCLB 2WD
    You might have a few things going on. The engine is more worn at 286k so it burns some oil anyway. How old are the spark plugs? The injectors are far from new and the fuel pump is the same way. MAF sensor can play into it. Vacuum leaks can play into it. 20 minutes on the freeway gets it warmed up and the problem rears it’s head. Start with the spark plugs and cleaning the MAF sensor. Do a smoke check to see if there is a vacuum leak. Go from there.
     
    N84434 likes this.
  9. Jan 15, 2022 at 8:24 AM
    #9
    bmc02

    bmc02 New Member

    Joined:
    Aug 24, 2020
    Member:
    #51245
    Messages:
    435
    Gender:
    Male
    First Name:
    Buddy
    E WA
    Vehicle:
    05 DC SR5 / 06 SEQUOIA LTD
    Check the crank position sensor. Or just replace it as it's not too expensive and easy to get to. Also check the cable that goes to it as it can get damaged by the drive belt (ask me how I know). It gave me intermittent problems without throwing codes before I found the wire harness was damaged.

    Agreed with others advice as well, you got some miles. probably past due for some maintenance. Plugs, MAF, injectors (rebuild/clean), sensors, clean TB, etc.
     
    N84434 likes this.
  10. Jan 16, 2022 at 12:20 AM
    #10
    knock-knock

    knock-knock [OP] New Member

    Joined:
    Jan 14, 2022
    Member:
    #73148
    Messages:
    15
    Gender:
    Male
    First Name:
    James
    Vehicle:
    2006 Tundra DC 2WD
    Thanks! To respond to your questions:

    1. It smokes on startup for like 20 seconds and goes away. It doesn’t smoke at all when I drive prolonged trips on surface streets. Like I had mentioned, it smokes after traveling on the freeway about 20-25 miles at 70mph or roughly half an hour. Funny thing is, I can travel the same distance on surface streets and the truck will be fine, it just ain’t happy with highway speed.

    2. There is a valvetrain noise on cold starts, but it sounds different from the noise produced from the prolonged freeway driving.

    3. It loses power after traveling 20-25 miles on the freeway (you get the idea, i hate to be repetitive). Lets say I am at 70 mph, suddenly I can feel no response from the gas pedal, the smoking and knocking (they are simultaneous) follow almost immediately after the power loss and is extremely dangerous on these socal freeways where every other driver is going 85.

    4. So I had an oil change done in November. On New Year’s Eve I had the whole freeway thing, limped the truck home, checked the dipstick and it was dry. Now I don’t know if the dipstick was dry due to that trip on the freeway or it had been consistently burning oil…

    5. It could be a misfire but if it were the CEL should illuminate and flash immediately which is strange. Probably not a misfire? Not sure

    If it were a crankcase sensor, would it cause the burning oil at startup/prolonged drives? Next on my list is a compression test. Might take it to my mechanic this week.

    Edit: tomorrow I am gonna do my own oil change, the generic crap oil filter is getting on my nerves…
     
    N84434[QUOTED] likes this.
  11. Jan 16, 2022 at 12:29 AM
    #11
    knock-knock

    knock-knock [OP] New Member

    Joined:
    Jan 14, 2022
    Member:
    #73148
    Messages:
    15
    Gender:
    Male
    First Name:
    James
    Vehicle:
    2006 Tundra DC 2WD
    Spark plugs were replaced last summer, 10k miles ago. I can’t remember but the injector were also serviced but I forgot if they were cleaned or replaced. Fuel pump needs to be checked out too. I can clean the maf sensor. Might do the vacuum smoke check when i get the chance.
     
    Last edited: Jan 16, 2022
    N84434 likes this.
  12. Jan 16, 2022 at 2:11 AM
    #12
    knock-knock

    knock-knock [OP] New Member

    Joined:
    Jan 14, 2022
    Member:
    #73148
    Messages:
    15
    Gender:
    Male
    First Name:
    James
    Vehicle:
    2006 Tundra DC 2WD
    Stupid question, but could it be possible that the oil change shop put synthetic or syn blend oil and be causing this?
     
  13. Jan 16, 2022 at 2:25 AM
    #13
    GODZILLA

    GODZILLA Hail to the King, Baby.

    Joined:
    Sep 2, 2019
    Member:
    #35514
    Messages:
    27,092
    Gender:
    Male
    First Name:
    Adam
    Wyoming
    Vehicle:
    2023 Solar Octane TRD Pro TACOMA, 2022 Honda CB500X
    Trying not to mod it
    Changing the oil type shouldn't cause anything like this. Synthetic, blend, or regular dino should all be fine so long as the proper weight was used.
     
  14. Jan 16, 2022 at 3:22 AM
    #14
    NickB_01TRD

    NickB_01TRD You don't need less cars, just more driveway.

    Joined:
    Jun 16, 2021
    Member:
    #64346
    Messages:
    2,122
    Gender:
    Male
    First Name:
    Nick
    KY
    Vehicle:
    01 Tundra V8 4X4 AC SR5 TRD
    OEM Toyota filter part number is 90915-yzzd3. Will probably appear longer than whatever generic deal is on it now. Can sometimes be found at Walmart.
     
  15. Jan 16, 2022 at 4:15 AM
    #15
    N84434

    N84434 In the Frozen Tundra

    Joined:
    Jan 22, 2020
    Member:
    #41580
    Messages:
    1,087
    Gender:
    Male
    First Name:
    Jim
    Milwaukee WI.
    Vehicle:
    2001 Limited TRD
    If it's oil consumption rate is too high (dip stick drier than a good Martini) I have to think you're still dealing with a PCV issue. The crankcase might be building too much pressure and forcing the oil into the intake. Hence the smoke on start up and prolonged higher rpms (freeway speeds).

    I had a 2000 Lexus RX300 with the 3.0 V6 which was notorious for sludging and sucking oil through the poorly designed PCV system. Driving around town, it would perform flawlessly. Freeway driving would cause it to burn a quart every 400-500 miles. The fix for that vehicle was to install a redesigned valve cover from a 2003 3.3 V6 which allowed for better oil flow back into the head.

    With the 2UZ-FE, they don't have an inherent problem with oil consumption unless there's a problem. So, I would make sure you have vacuum drawing at the PCV. The knocking noise has me stumped, unless you're dealing with multiple issues at the same time. If you had a bad knock sensor, it would throw a code.

    I would still get with someone who has a good quality code reader and see what pending codes are floating around in the ECU. You might shed some light on the knock issue.

    To answer your question. The crank sensor only looks for a signal to tell the ECU the engine is turning. That, in turn is used for various systems that need to see engine rotation. Fuel delivery, ignition, starting, timing. As far as oil consumption, no, it wouldn't effect that. It would effect the timing, which could be causing the knocking.

    keep pushing!
     
    Last edited: Jan 16, 2022
  16. Jan 16, 2022 at 6:03 AM
    #16
    dbittle

    dbittle Middle Age Member

    Joined:
    Aug 10, 2020
    Member:
    #50632
    Messages:
    227
    Gender:
    Male
    Huntsville AL
    Vehicle:
    2006 V8 RCLB 2WD
    The smoke on startup is most commonly valve seals/guides. For the other, the pcv theory makes sense to me.
     
    N84434 and knock-knock[OP] like this.
  17. Jan 16, 2022 at 8:30 AM
    #17
    knock-knock

    knock-knock [OP] New Member

    Joined:
    Jan 14, 2022
    Member:
    #73148
    Messages:
    15
    Gender:
    Male
    First Name:
    James
    Vehicle:
    2006 Tundra DC 2WD
    Today I am changing the oil just for safe measure. Oil was supposed to be replaced a couple of days ago but have been busy with other things. I am going with Mobil 1 high mileage synthetic, do you think that would be appropriate for my truck with its mileage? I am not sure what type of oil the stealership uses when we used to take it in the past but they probably use anything they got in hand.
     
  18. Jan 16, 2022 at 8:31 AM
    #18
    knock-knock

    knock-knock [OP] New Member

    Joined:
    Jan 14, 2022
    Member:
    #73148
    Messages:
    15
    Gender:
    Male
    First Name:
    James
    Vehicle:
    2006 Tundra DC 2WD
    yep, I made sure to get the OEM one
     
  19. Jan 16, 2022 at 8:41 AM
    #19
    N84434

    N84434 In the Frozen Tundra

    Joined:
    Jan 22, 2020
    Member:
    #41580
    Messages:
    1,087
    Gender:
    Male
    First Name:
    Jim
    Milwaukee WI.
    Vehicle:
    2001 Limited TRD
    Mobil One is good stuff, IMHO... I use M1 in my Volt and in the Tundra. The point brought out by @dbittle about valve guide seals is a good one. That would tie into the oil loss and smoke on start up. Do your due diligence with a compression test, check pending codes and verify the PCV is working and you have vacuum at the connection. The hose to the PCV could be clogged, and the PCV could be stuck closed.

    where are you located, btw?
     
  20. Jan 16, 2022 at 8:51 AM
    #20
    knock-knock

    knock-knock [OP] New Member

    Joined:
    Jan 14, 2022
    Member:
    #73148
    Messages:
    15
    Gender:
    Male
    First Name:
    James
    Vehicle:
    2006 Tundra DC 2WD
    Tomorrow, I am taking it to my mechanic, I will have him run the compression test and the vacuum test and run a scanner. I doubt the PCV is stuck closed though since I had just replaced it the other day. I will keep you updated and let you know what he finds.

    Sadly, I am located in socal lol:frusty:
     
    N84434[QUOTED] likes this.
  21. Jan 16, 2022 at 9:51 AM
    #21
    N84434

    N84434 In the Frozen Tundra

    Joined:
    Jan 22, 2020
    Member:
    #41580
    Messages:
    1,087
    Gender:
    Male
    First Name:
    Jim
    Milwaukee WI.
    Vehicle:
    2001 Limited TRD
    The PCV may be good, but we need to verify the hose is doing it's job as well...:thumbsup:
     
  22. Jan 16, 2022 at 12:48 PM
    #22
    txagg

    txagg New Member

    Joined:
    Sep 18, 2020
    Member:
    #52448
    Messages:
    942
    Gender:
    Male
    First Name:
    Matt
    Central Texas
    Vehicle:
    2000 4x4 TRD Tundra access cab
    Stone cold stock
    My first guess would be improper pcv system operation, if not the pcv the pcv plumbing. My next guess would be a bad catalytic converter.
     
    knock-knock[OP], N84434 and dbittle like this.
  23. Jan 18, 2022 at 10:53 AM
    #23
    knock-knock

    knock-knock [OP] New Member

    Joined:
    Jan 14, 2022
    Member:
    #73148
    Messages:
    15
    Gender:
    Male
    First Name:
    James
    Vehicle:
    2006 Tundra DC 2WD
    Truck is at my mechanic’s shop. Awaiting results.
     
    N84434 likes this.
  24. Jan 18, 2022 at 10:53 AM
    #24
    knock-knock

    knock-knock [OP] New Member

    Joined:
    Jan 14, 2022
    Member:
    #73148
    Messages:
    15
    Gender:
    Male
    First Name:
    James
    Vehicle:
    2006 Tundra DC 2WD
    I also told him all of your guys’ suggestions
     
    N84434 likes this.
  25. Jan 18, 2022 at 11:13 AM
    #25
    landphil

    landphil Fish are food, not friends!

    Joined:
    Oct 9, 2016
    Member:
    #4814
    Messages:
    4,319
    Gender:
    Male
    First Name:
    Phil
    BC, Canada
    Vehicle:
    ‘08 TRD doublecab
  26. Jan 18, 2022 at 11:23 AM
    #26
    knock-knock

    knock-knock [OP] New Member

    Joined:
    Jan 14, 2022
    Member:
    #73148
    Messages:
    15
    Gender:
    Male
    First Name:
    James
    Vehicle:
    2006 Tundra DC 2WD

Products Discussed in

To Top