Ticking sound in Hilux 5L Diesel ??

Submitted: Sunday, Aug 27, 2006 at 15:04

ThreadID: 37159 Views:11929 Replies:4 FollowUps:1

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Paul217

Hi, Im relatively new to 4x4's and i have had 1999 Hilux 3.0 5L Diesel ute since Oct 2005 - it has always had a bit of a ticking sound in the engine, but runs really well. It sounds a little lick an old fashioned tappet noise. It has now started to get worse. Its off to the doctors this week, but i was wondering if anyone has any ideas what it may be????

My thoughts Valves?? Bearings?? Although i thought bearing would be more a clunking sound.

Cheers

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Reply By: strzelecki - Sunday, Aug 27, 2006 at 15:20

Sunday, Aug 27, 2006 at 15:20

It may be the valve clearance,its a simple process to adjust using a feeler guage.

AnswerID: 191270

Reply By: Member - Axle - Sunday, Aug 27, 2006 at 15:48

Sunday, Aug 27, 2006 at 15:48

Could well be a cracked exhaust manifold, they are known to be avery good engine overall. Good luck!

Cheers Axle

AnswerID: 191272

Reply By: Heefers - Sunday, Aug 27, 2006 at 18:46

Sunday, Aug 27, 2006 at 18:46

G'day Paul,
I have a 2002 3.0TD Hilux that had a ticking noise that sounded exactly like the noise you have described. During routine maintenance I adjusted the tension on the alternator belts and gave the sides a good lick with a dry lube stick, I haven't heard the ticking since.

If you were putting the Lux into the shop just for the noise you might want to have a look at those belts first, could save yourself a few bucks.

Cheers,
Heefers

AnswerID: 191306

Reply By: Off-track - Sunday, Aug 27, 2006 at 22:29

Sunday, Aug 27, 2006 at 22:29

Is it worse at startup or when the engine is warm? Or no difference? Exhaust manifold leak usually gets worse when engine has warmed up. Tappet noise most noticeable at startup.

If it is a cracked or leaking exhaust manifold you may be able to see it by looking in the engine bay when it is completely dark and the engine running. Gun the accelerator a few times as well.

AnswerID: 191356