Jump to content
SAU Community

Random ticking noise in engine bay

Terminal

By Terminal,
in General Maintenance

 Share

Recommended Posts

Terminal Grand Master

Terminal

Posted
Posted

Ok, i did a quick search for the same problem, but i couldn't find anything.

I have an odd ticking noise coming from my engine bay, it's irregular, and only happens when im idling. it's coming from the drivers side of the engine bay. i'm fairly certain i have a dodgy AFM, and my only theory is that it's playing havok with the injectors so they're turning on and off randomly or whatever injectors do at idle. the idle does jump around slightly, between 700 and 1200, but usually sits around 700 - 800. it goes away as soon as i rev it and never happens while driving. is there anything serious that could go make that noise on that side of the car? it's sort of like an electronic ticking like a solenoid going spastic.

anywho, any help appreciated.

Link to comment
https://www.sau.com.au/forums/topic/38937-random-ticking-noise-in-engine-bay/
Share on other sites
Terminal Grand Master

Terminal

Posted
  • Author
Posted

nah oil is fine, it's an electrical ticking noise, like a solenoid clikcing on and off at random intervals. whenever my idle is playing up is when it happens. if the idle is being a good boy on that day it won't do it. that's what led me to believe possible injector problem.

nmcmahon83 Proficient

nmcmahon83

Posted
Posted

Interesting... I had a ticking noise., but it happened all the time... I found it out to be the electric window switch was playing up, when i put my window down, the switch would stay partly on, and it would tick (ie a solenoid). I've figured out aslong as i make sure the switch is off after i put my window down its fine... Probably not wat ur problem is, but thought it was worth a mention.

Terminal Grand Master

Terminal

Posted
  • Author
Posted
one solinoid that is fairly loud is the vvt solinoid which comes on as soon as there is movement of the throttle, your tps (throttle position sensor) could be dodgy and kicking the vvt solinoid in and out.

just a thought

this sounds like my problem, thanks dude. i'll have to get my TPS checked out.

Revhead Grand Master

Revhead

Posted
Posted

If you have a dodgy AFM then there's a fair chance the idle's jumped because the ECU's in limp mode. Dodgy TPS shouldn't cause the idle to jump - I think the ECU resets its throttle reading when you start the car, ie it makes whatever it's reading then as 0% throttle.

I have the exact same ticking noise on my car. It's a worn lash adjuster. Nothing to worry about, just annoying. The reason it only ticks at or near idle is because that's when oil pressure is at its lowest, and if the adjuster is worn it'll return the oil more quickly than it should and so 'bleeds' itself. Think about trying to blow up a balloon with a small hole in it. If you only blow a little bit, it will stay flat. It you blow harder, so that you're putting in more air than the hole is letting out, the balloon will stay inflated.

Different oil doesn't fix it - well maybe something like 80W90 would, but that's not a good idea :rant:

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • mr.torquesplit
      T56 In Gtr

      By mr.torquesplit · Posted

      looking forward to your t56 swap man its a game changer if it works! 
    • Kinkstaah
      MLR's Bogan cruise ship

      By Kinkstaah · Posted

      So, when are you trying the new GR86 or BRZ?
    • The Bogan
      MLR's Bogan cruise ship

      By The Bogan · Posted

      Uncle Duncan Yeap, FI Interchiller  Works well, normal IAT's cruising with the WTA only went from 50°c+ to 25-30°c with the interchiller  Before, when on it hard, the IAT would see 80-90°c, now, the highest has been was around 38°c IIRC IAT is measured under the blower hat I recommend it for the street or strip where your only on it hard for 10 or so seconds, but it wouldn't be efficient for sustained track use as it would heat soak from the AC turning off or whatever it does during WOT to protect the compressor It really needs the AC running for it to not heat soak and keep the WTA coolant chilled My WTA coolant temps when just cruising is around 2°c
    • Duncan
      MLR's Bogan cruise ship

      By Duncan · Posted

      Hey Mark...sorry to interrupt your career change to hair dressing... but...did you ever fit the interchiller to the commodore, and if so how was it? And, who made it?
    • The Bogan
      MLR's Bogan cruise ship

      By The Bogan · Posted

      I've been pondering this, I really enjoy the convertible thing, for me, it's like riding a motorbike, without all the issue of riding a motorbike, mainly, my old sore arthritic joints getting beaten up, and, being able to do it in shorts and a T-shirt and not needing a helmet and all the other gear required, especially like wearing jackets and pants in the summer, or needing 6 layers of cloths in the winter, or not having wet weather gear handy when your 100km away from home on the bike when it decides to start raining As for the hard top and its Coupe look, whilst I do lose all that open top feeling that I really enjoy, from my experience with the NB with a detachable hard top, the cabin is a much nicer place to be, the difference in noise for one, a hard top quietens down the interior, alot, with the soft top up or down it's pretty noisy, which, after 5 or so hours, can get tiring But, as you stated, the detachable hard top totally changes the look of the car, in a really good way, and for me, the look of a detachable hard top is so much better than the PRHT which looks more like a after thought with its weird bulbous rear roof line For me, the minimal effort of putting in on, or storing it after removing it, is well worth the time and effort for the look alone And yes, I'm sure the next owner will be grateful for it as well.......  
×
×
  • Create New...