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4JH1-TC Tapping/Clicking Noise on Idle/Low Revs

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4JH1-TC Tapping/Clicking Noise on Idle/Low Revs

Postby dmaxle » Thu Jan 12, 2017 2:36 am

Hi Everyone, first post for me... So basically I wanted some of your wisdom with a tapping/clicking noise I'm having with a Dmax I recently acquired. It's an 07 TFS77 with the 4JH1-TC 3 litre engine and has 88,000miles on the clock. Have no issues, no smoke, no hesitation, reasonable mpg apart from an annoying clicking, tapping noise which is noticeable on idle and and when tapping the gas pedal on very low revs, noise completely silenced when accelerating or over 1500rpm or so.. Been to 2 mechanic's and 2 diesel experts and no one would pinpoint directly the issue, mechanic's took the easy way..Replace the lot, Diesel guys said no it's not coming from the injectors although one pointed me out to check the vacuum pump ... I uploaded a short clip of the noise hopefully somebody can shed some light. :(

YouTube Video here https://youtu.be/gUIjND6tyUM
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Re: 4JH1-TC Tapping/Clicking Noise on Idle/Low Revs

Postby pig75 » Thu Jan 12, 2017 5:21 am

It sounds like an exhaust leak to me
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Re: 4JH1-TC Tapping/Clicking Noise on Idle/Low Revs

Postby dmaxle » Thu Jan 12, 2017 1:00 pm

Interesting but shouldn't the noise increase corresponding with the higher revs ?
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Re: 4JH1-TC Tapping/Clicking Noise on Idle/Low Revs

Postby rabidrabbit001 » Wed Jan 25, 2017 11:37 am

What noise.....the video does not play....it says "this video has been removed by the user"....dude how can we help if you don't help us help you.
May need rocker arms adjusted to proper clearance. If this hasn't been done for a while it will tap and make the noise described. My 2 cents...sorry for sarcasm...cheers
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