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

    • fatz
      Neil's R33 Gts-t Build

      By fatz · Posted

      Have a vb in honour of the car comming back
    • The Bogan
      Neil's R33 Gts-t Build

      By The Bogan · Posted

      It was a great, but typical track day, and some VB was ingested at the night time debrief 🤪
    • Duncan
      Neil's R33 Gts-t Build

      By Duncan · Posted

      And so, to round this out, I couldn't be happier to confirm @MBS206 has decided to buy the car. He drove down from sunny QLD with a trailer last week and it is off to its new home today. I'll let Matt confirm on next steps but I understand broadly that the plan is to leave it pretty much as is, and just get some quality wheel time with a nicely balanced car that is pretty much track ready. There are a few a jobs still to be done first but nothing too major and I think its a very smart buy Dinner last night at the Paragon with a round of VBs (mostly) for Neil
    • Duncan
      Neil's R33 Gts-t Build

      By Duncan · Posted

      Well, 50 pages and the end of a chapter for this car. We took it out for a shakedown at Wakie yesterday, and everything went well. There were a couple of niggles: - Oil cooler fitting leak - tightened, cleaned, stopped leaking - Radiator cap overflow fitting was leaking....Mark called it, the overflow fitting was threaded in and not tight....tightened, tested and held pressure - Small oil leak at the rear of the block, probably the turbo oil feed - too hot to get at it comfortably but probably just needs to be nipped up - leak at the driver's side rear brake line where it meets the hardline. Fitting wasn't loose, so Matt backed it off and back on, no further leaks - there's also a leak somewhere on the top of the fuel tank, maybe that cross over fuel line - that was has been left to fix when its on a hoist Otherwise than those niggles the car went great, turned great and stopped great so it was a very successful day out. I'm always really nervous when a car first hits the track after a long break, especially with a brand new engine as well but it was great. VID-20251011-WA0007.mp4  Big thanks to @The Bogan who dropped by and helped out, @MBS206 and my nephew Lachlan the apprentice.  Neil's wife Mel also surprised the hell out of all of us by dropping by; she's up in Tamworth these days but was travelling to Melbourne so had plausible deniability for turning up at the garage, it was great to see her but also obviously a bit sad all round.
    • perry_r33
      Skyline R33 Sedan Tail Lights S2 - (2 SETS Available) Silver & Grey

      By perry_r33 · Posted

      Skyline R33 Series 2 sedan tail lights in excellent condition. These are becoming harder to find, especially in this state.    BOTH SETS ARE IN FANTASTIC CONDITION (REFER TO PHOTOS)    ✅ No broken covers or cracks ✅ Lenses are in flawless condition ✅ All rear mounting lugs intact ✅ Comes complete as pictured ✅ Perfect for restoration, replacement, or upgrade   These lights are ready to go, no surprises just quality OEM parts.   These are definitely one of the better sets we have seen in a while. With minimal wear and tear they will come as you see. Bear in mind they are not brand new they are almost 30 years old now. To find them in this condition isn’t easy they can only be obtained on the second hand market.   Australia Wide Postage Available At Buyers Expense. Silver Set:$850 Grey Set:$850 PM Me for purchase or any other questions  IMG_2166.dng IMG_2165.dng IMG_2172.dng IMG_2173.dng IMG_2174.dng IMG_2179.dng IMG_2180.dng IMG_2260.dng IMG_2258.dng IMG_2259.dng IMG_2261.dng IMG_2266.dng IMG_2273.dng IMG_2274.dng IMG_2276.dng
×
×
  • Create New...