Below Nav Bar Ad Module

Collapse

Announcement

Collapse
No announcement yet.

NL Petrol Strange Noises

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • NL Petrol Strange Noises

    My NL with 120k on the clock has been making strange sounds.

    On a trailing throttle (in gear slowing with foot off the accelerator) there is like a hissing sound and also when you back off to change gear. In fact, even when you rev it in neutral and back off it makes a metallic hissing/rattle sound that sound like it is going through the exhaust.

    The other is a ticking sound at idle that is loudest under the car, not a lifter type tick, but almost like a piston slap type sound or oil pump noise.

    The car runs perfectly, uses no oil or water, has good oil pressure etc.

    Has anyone got ideas, or have a similar problem?

    Thanks.
    98 NL LWB with plenty on the wish list

  • #2
    my nl had this ticking / sucking sound when playing with the throttle. no water / oil use and running fine.
    mine turned out to be a stuffed catalytic converter.
    hope this helps.

    Comment


    • #3
      Like Bigbear said, a cat or even muffler could cause your problems, ticking maybe a leakin manifold gasket or flange due to the increase in pressure...

      Comment


      • #4
        Thanks for your replies, guys.

        The sound on backing off the throttle does sound like a rattle through the exhaust, so I will check that out first.

        Bigbear, do you remember what sort of cost was involved for the cat?

        Thanks again.
        Colin.
        98 NL LWB with plenty on the wish list

        Comment

        Matched content

        Collapse
        Working...
        X