Hissing Noise From Engine

Hello, can anyone please help re my Freelander Sport 54 plate? I had a problem with a hissing sound from the engine and black smoke from exhaust when accelerating and discovered a split in one of the intercooler hoses. I replaced the two hoses and the problem seem to be solved. However the hissing sound has returned when accelerating from 2000rpm upwards. I notice a couple of puffs of black smoke again from the exhaust but it doesn't seem constant.

Could anyone advise? Thanks very much.

Alex

New hoses not secure or a leak elsewhere.

Datatek said:

New hoses not secure or a leak elsewhere.

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Aye! that and possibly intercooler partially blocked or leaking.

Thanks very much. The new hoses are secure. Any suggestions where another leak could come from?

Intercooler partially blocked or leaking?.. Sounds a bit technical for me.. How would I check for that?

Thanks guys. It was a small split at the back of the third hose, smallest one I didn't replace.

Next time you change them go for the updated silicon ones the are much better and last longer ,unless you have already done this

Yes I noticed them after I'd fitted the new ones which were ones I could get my hands on at short notice. Cheers