2005 Toyota Tacoma Ticking Noise from Engine Bay

Tiny
USADAYTRADER
  • MEMBER
  • 2005 TOYOTA TACOMA
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 80,000 MILES
I have a ticking noise coming from the engine of my 05 4 cylinder Tacoma. I never really paid attention to it before, but I can hear the ticking noise when I am in the drive thru or against a block wall.

The tapping noise is louder when it just come back from a long drive. In park, the engine still taps and taps even louder when I rev up to 2k. After it sits idling awhile the tapping is very faint. I've used regular dino oil and Mobile one 5-20. The toyota serviceman listened to it quickly and said it used solid lifters, but I am not sure.

I've put a screwdriver on the injectors and part of the engine to listen to but cannot pinpoint it. I have included a video/sound link for your review.

http://s81.photobucket.com/albums/j225/usadaytrader/?action=view¤t=MVI_6360.flv
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Saturday, December 13th, 2008 AT 11:03 PM

5 Replies

Tiny
BLUELIGHTNIN6
  • EXPERT
Hello
Thanks for the donation

The block wall is simply letting the noise vibrate back into the cab of the vehicle, allowing you to hear the noise better, similar to using a mechanical. Stethoscope

Does the engine vibrate more than usual?
If the tapping in your auto's engine is accompanied by a persistent vibration or noticeable tremors under load, you may have damaged the rocker-arms or valve push rods. To check the problem you will need to remove the valve covers and visually inspect the arms, rods, and valve stems. Oftentimes the repair is nothing more than replacing the broken rod or arm and bolt.

Is the vehicle backfiring? ( I did not hear this in the video, so my guess is no? )
Though much less likely, if your auto happens to also be backfiring while tapping, you may have a damaged camshaft. This will not be something you should attempt to diagnose yourself, and it will be a fairly costly and laborious repair. If you suspect a bad camshaft, take your auto to a reputable mechanic or dealer and get the cam tested. Before leaving your vehicle, get a full estimate (in writing) and for the repair itself, and for the testing and reassembly should you decide to decline the repair.

If you do go ahead and replace the camshaft, you should also replace all of the lifters as well. Further, this is an opportune time to replace your timing chain or belt.

Hope this helps.
Thanks for using 2carpros. Com!
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Saturday, December 13th, 2008 AT 11:50 PM
Tiny
USADAYTRADER
  • MEMBER
Nope. The truck runs the same as when I bought it. Same amount of power. It doesn't backfire or do anything weird under load. Just the tapping sound. Does my engine have lifters if its an overhead cam? Any more suggestions?
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Sunday, December 14th, 2008 AT 12:09 AM
Tiny
BLUELIGHTNIN6
  • EXPERT
If there is no unusual vibrations or any other symptoms besides the tapping, I would have to assume that maybe it is just not pumping oil properly through the system. Perhaps check oil pump to ensure it is working properly.
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Sunday, December 14th, 2008 AT 12:17 AM
Tiny
USADAYTRADER
  • MEMBER
Ran Seafom through the gas and the brake booster line. Let idle 40 mins. Problem Solved
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Tuesday, December 23rd, 2008 AT 5:11 PM
Tiny
BLUELIGHTNIN6
  • EXPERT
Great. Thanks for that info. It will help us help others with similar problem.

Thanks for using 2carpros. Com !
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Wednesday, December 24th, 2008 AT 12:29 AM

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