1.8 Td Making Houling Noise When Revs Increase Help

[kcboy]

Hi guys am new to this forum and recently purchased a 2001 ford focus 1.8 td cl 120000, i am having problem with it as the revs increase to around 2000-2500 rpm it makes a loud houling noise and them sometimes stops for a while and then starts again, could anyone help me out and tell me what the problem is thanks

[H3lly]

There is no way to be sure unless you get it scanned. It could be the idle valve or a vacuum leak.

[kcboy]

Well the two big pipes that run into the intercooler have oil on them and one pipe has a little slit in it, do you think this could be the problem, its a loud nosie aswell thanks

[alz]

welcome kcboy,

you need to replace the split pipe before you start looking any where else on the car.

[mintalkin]

i would say the split intercooler hose is your problem, its a common fault on the diesels.

[kcboy]

Hi ive rapped duct tape around the slit to see of it still makes the noise and it does so carnt be that, i am still going to replace the hose thanks.