Hi My 2004 Freelander 1 only had 80k miles and recently heard unusual excessive tapping engine sound like blown exhaust. Only when idling, When accelerated tapping sound diminishes and drives normally. When foot off the accelerator knocks again. Exhaust checked with kwikfit no leaks. Water pump cooling ok. Oil level fine. Any cause please. Terrible sound stopping at signals.
your not confusing mechanical tapping,
with diesel 'knock' .. per chance ???
[ i say that 'cause certain things .. like an injector fault can cause loud diesel knock
[ like when it can't deliver multiple injections per cycle
the vac pump can sound like a tapping sound ..
more evident at idle ..
but it's not a particular loud or unexpected noise .. normaly.
with diesel 'knock' .. per chance ???
[ i say that 'cause certain things .. like an injector fault can cause loud diesel knock
[ like when it can't deliver multiple injections per cycle
the vac pump can sound like a tapping sound ..
more evident at idle ..
but it's not a particular loud or unexpected noise .. normaly.
Toyota Twonk
Active Member
Change the engine and see if it sounds any different.....
Nodge68
Well-Known Member
That's got to be the dumbest post I've seen in a long time. If you can't say something constructive, don't say anything.
Hopefully not
Thank you
First instance the sound suggests manifold end of exhaust leak. Kwik fit checked out and said no exhaust problems suggested to check water pump bearings. Cooling system working fine.
Toyota Twonk
Active Member
It seems logical....
Change the engine, noise stops then it's fixed.....
Change the engine, noise stops then it's fixed.....
See post #11
Toyota Twonk
Active Member
I don't have 11 fingers like you so do count back for me please
Nodge68
Well-Known Member
Sounds like crankshaft pulley delamination to me. Check of silvery dust around the pulley area.