my tundra makes a tapping noise when it is first started in the morning, but only after it is put into gear.

50

Asked by Aug 18, 2014 at 06:57 PM about the 2006 Toyota Tundra SR5 4dr Double Cab SB

Question type: Maintenance & Repair

16 Answers

38,275

Is the tapping sound consistent with the rpm of the Engine? When was the last time you changed the oil?

116,285

Some times a quart of MMO will clean out the HLA's and the tapping will either go away or it won't, if it won't then it is time for lifter replacement.

1 people found this helpful.
50

the tapping is consistent with the rpms however it only does it when put in gear, take it out of gear and the tapping stops. it does sound like lifters but it stops when taken out of gear even if you race the engine it will not tap unless it is in gear.

2 people found this helpful.
116,285

It only will do this cold, when it warms up it stops?

5 people found this helpful.
50

yes, after it warms up it stops

2 people found this helpful.
116,285

You might consider installing a manual oil pressure gauge so you can see the actual oil pressure cold, there could be a oil pressure bypass valve problem that is only happening cold, the other thing I can think of is the oil filter, it should have an anti-drain back feature in it, some of the cheaper oil filters don't has this feature and can cause problems with cold starts.

50

i'm due a oil change now, i have it changed at the dealer, i'll ask about the oil filter and use a quart of mmo. where would i install a oil pressure gauge at and should i ask the dealer about the bypass valve?

1 people found this helpful.
116,285

If you are using the dealer then they automatically use the correct oil filter for your vehicle. The manual gauge will be plumbed in where the oil pressure sender is located. I would ask the dealer about the bypass valve as they may know of problems they maybe having with them.

50

one thing i've left out, this only happens with the weather is cold, in the summer it will not do it. i'm sorry for not telling you that before now..

38,275

Ok. What grade oil are you using. What brand. And how offten do you change it.

1 people found this helpful.
50

the last time i told them to use 10w30, i don't know what brand and i change it every 5000 miles

50

are there no more answers, have i done something wrong?

116,285

From the things I could find most use 5-30 in winter and 10-30 in summer. A lot of the Toyota members have switched to full synthetic, some say that they have noticed a performance increase, but that is up to you as it is added expense. As it goes away after warm up I would try a quart of MMO and run it for around 1500 miles, if it is going to work it will have do it's job by then.

Best Answer Mark helpful
50

I would like to thank both of ya'll for the answers that you have provided. I will take your knowledge and put it to use. Again THANK YOU. lws48

10

I have a tundra v8 also. My problem with the sound is a leak in the exhaust manifold.

1 people found this helpful.
10

The Toyota 5.7 liter was designed with an acoustic air intake flow system this allows air to flow through the intake with the RPMs of the motor this design causes the noise that you are hearing my truck is the same way when you put it in gear it begins the tap louder because the air resistance is changing because the stress on the motor. totally normal but annoying I've noticed it's a lot quieter with the windows down it seems like it's mostly cab noise I actually sprayed rubber sound blocker underneath the hood to reduce the sound in the cab.

1 people found this helpful.

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