 | Home > Puma (Tdci) > High Pressure Hissing Noise |
 
|
|
|
| geobloke Member Since: 06 Nov 2012 Location: Nottinghamshire Posts: 4410  
|
Check all hose clamps, hoses for splits and the intercooler for splits as well. If the intercooler has a popped weld it is often noticeable by a weep or oil from the split.
You haven't recently added a snorkel or changed the snorkel top have you? These can increase induction noise lose to your head. |
||
8th Jan 2024 3:27pm |
|
| custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 20347
|
Check the torque of the fixings of the air inlet manifold above the MAP sensor to the block, all of them against the WSM torque settings.
Signs of oil deposits / blow by residue can be a sign. Just something to look at, 10NM rings a bell to me on the manifold to block bolts but consult the WSM. I found that one bolt was 7NM, the rest were torqued correctly on one fixing nearest the front which meant I had a minor boost leak for a long time. That ever so slightly loose bolt was enough to induce a little boost leak, the tell tale sign was oil deposits around it but even then wasnโt so easy to find. Also check hoses and Intercooler too as suggested, and also the steering column shaft for rubbing on the hose turbo side as well, itโs seriously close. 
Good luck. $W33T $0U7H3RN $UG4R ๐ฌ๐ง๐ด๓ ง๓ ข๓ ฅ๓ ฎ๓ ง๓ ฟ๐ด๓ ง๓ ข๓ ท๓ ฌ๓ ณ๓ ฟ๐ด๓ ง๓ ข๓ ณ๓ ฃ๓ ด๓ ฟ๐ฎ๐ช๐บ๐ธโฝ๏ธ๐ข๏ธโ๏ธ๐งฐ๐ช |
||
|
8th Jan 2024 5:02pm |
|
| geobloke Member Since: 06 Nov 2012 Location: Nottinghamshire Posts: 4410
|
That reminds me. Check the little o-rings on those sensors as well. If one is broken it could allow air to bypass the sensor and hiss under load... Didn't think of that until the above post
|
||
|
8th Jan 2024 5:50pm |
|
| custom90 Member Since: 21 Jan 2010 Location: South West, England. Posts: 20347
|
Ah yes, it was the MAP sensor โoโ ring I was thinking it may have been but wasnโt in the end but is known to do so.
$W33T $0U7H3RN $UG4R
๐ฌ๐ง๐ด๓ ง๓ ข๓ ฅ๓ ฎ๓ ง๓ ฟ๐ด๓ ง๓ ข๓ ท๓ ฌ๓ ณ๓ ฟ๐ด๓ ง๓ ข๓ ณ๓ ฃ๓ ด๓ ฟ๐ฎ๐ช๐บ๐ธโฝ๏ธ๐ข๏ธโ๏ธ๐งฐ๐ช |
||
|
8th Jan 2024 10:01pm |
|
| Ianh Member Since: 17 Sep 2018 Location: Essex Posts: 1997
|
Also worth checking the airbox lid is correctly fitted, that the air filter is seated correctly and that there are no cracks in the airbox.
|
||
|
9th Jan 2024 12:06am |
|
| mwestcrew Member Since: 09 Dec 2019 Location: South Warwickshire Posts: 251 
|
Thanks guys.
Some useful additional things to check over and above the usual things that I have already checked. 2011 130 Utility Body 2005 110 Van |
||
|
10th Jan 2024 1:59pm |
|
| Daphne Member Since: 22 Nov 2023 Location: Kent Posts: 25 
|
Turbo to manifold flange nuts are tight and gasket is good, mine started doing it when the bottom flange nut had mysteriously disappeared ๐
|
||
|
19th Jan 2024 10:26pm |
|
|
|
| All times are GMT |
< Previous Topic | Next Topic > |
Posting Rules
|
Site Copyright © 2006-2024 Futuranet Ltd & Martin Lewis
