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

    • Gareth87
      What should I do next to hold the head on

      By Gareth87 · Posted

      I can see between the water jacket and cyl 3 there wasn't a hard line of combustion gas. It certainly appears that the issue is coming from there. Yes, checked the tension. All at 100ft lbs where I set them 5 years ago. These blocks can crack but generally when they have been over bored. Mine is only 0.5mm oversize at 89.5mm. They break between cylinders around the 91mm mark. No sign of that with mine. My gut feeling is the head gasket lifted a while back when the studs stretched and i bandaided it by retorquing the studs. It's finally let go.
    • TurboTapin
      new 1.5 LSD issues/concerns

      By TurboTapin · Posted

      My Nismo 1.5 churps a bit on reverse turns when cold, but besides that feels like a stock diff.
    • The Bogan
      NC MX5

      By The Bogan · Posted

      Yes, but, I paid cash and I'm pretty sure the receipt was in the bin 10 minutes after I got home Note to self, keep all receipts
    • MBS206
      NC MX5

      By MBS206 · Posted

      Bunnings would have just handed you your money back on that one!
    • The Bogan
      NC MX5

      By The Bogan · Posted

      So, version 4 intake is on its way I was looking at these a while ago but at around $200 or more it was a little pricey for something that might not work, but, I had it in my watch list, but, I got a message saying it was on special, and I had a code thingie to use, it eventually came in at $120 delivered, so BAM, BUY NOW.....LOL I'll need to have a look when it arrives but I feel it will "look" better than what I currently have, as it comes with a PCV fitting, so I will be able to get rid of the alloy pipe that goes to the throttle body with the PCV fitting  Well, that's what the voices in my head are telling me  Oh, and this happened today Yeap, it was a Trojan, and it was cheap, so I headed back to the hardware store and actually spent a little bit more on a heavy duty,  one that was actually recommended by a plumber mate, a Cyclone one with a fibreglass handle that is actually rated for clay The broken shovel will eventually be "modified" into a short handle shovel
×
×
  • Create New...