Volvo Owners Club Forum - View Single Post - 2004 V70 D5 Popping Sound

MarvinMitt · Aug 9th, 2019, 08:48

Yeah. Block the vac pump air intake ports (the bigger one with something solid that doesn't get sucked in).
If it still pops then it's probably the vacuum pump seal.

Aug 9th, 2019, 08:48	#12
MarvinMitt Senior Member Last Online: Nov 1st, 2021 21:18 Join Date: Sep 2016 Location: Tartu	Yeah. Block the vac pump air intake ports (the bigger one with something solid that doesn't get sucked in). If it still pops then it's probably the vacuum pump seal. __________________ 2002 V70 D5