strange thumping noise

This site contains affiliate links for which LandyZone may be compensated if you make a purchase.
discoalltheway

discoalltheway

New Member
Posts
38
Hi all got myself a 1999 discovery td5 which has developed a random noise
when it's ticking over you can hear a thumping noise coming from the air in take, it's the sort of noise that a engine makes when there is no air filter on it, i've tried cleaning the MAF sensor but don't really think that has helped has any body else had this same experence could do with pointing in the right direction.

Many thanks.
 
discoalltheway said:
Hi all got myself a 1999 discovery td5 which has developed a random noise
when it's ticking over you can hear a thumping noise coming from the air in take, it's the sort of noise that a engine makes when there is no air filter on it, i've tried cleaning the MAF sensor but don't really think that has helped has any body else had this same experence could do with pointing in the right direction.

Many thanks.
Click to expand...
If you've judged the noise right, you have a leak somewhere in the air intake system. If so you should get a hissing noise when you rev her up. Revving the motor and listening inside the engine compartment would be a start. Check all joints including the EGR, if you've still got one?
 
ok will have a check tomorrow don't have a EGR took that off while back but will keep ears peeled. would MAP sensor play any part in my problem or am i just talking rubbish

Thanks chap.
 
discoalltheway said:
would MAP sensor play any part in my problem or am i just talking rubbish

.
Click to expand...
Dunno, sorry. I assume your blanking plate is still tight and the vacuum pipe blocked...

If you can't source the noise a metal screwdriver between your ear and various engine bits is a good stethoscope substitute.
 
Could be a pipe failing. One of the laminated pipes (if you have them) could be de-laminating and flapping in the breeze, maybe???

;)
 
I get a similar sounding noise - it's coming from the intercooler on tickover and is quite normal. Check your airfilter and if any doubt at all, replace.
 
jsbholden said:
mines got a new K & N filter but still thuds. could it be a sign that the intercooler needs a clean out?
Click to expand...

they way i check if my intercooler needs a clean is to look at the air filter after going through water....if half of its missing and been sucked through the turbo then its time for a clean ! :D:D
 
You must log in or register to reply here.

Similar threads

L
No Start When warm
Replies
4
Views
800
lynall
L
T
Series 3 New "ticking" noise upon acceleration (in gear only)
Replies
5
Views
478
boguing
boguing
M
Intermittent noise freelander
Replies
5
Views
626
J_D
J_D
G
Stupid D1 noise under load.
2
Replies
29
Views
2K
gsx130
G
N
Strange 2.2 engine noise…
Replies
9
Views
2K
Nodge68
Nodge68
Back
Top