High pitch whistling when acceleratiing- 2004 S40

Rbalders40 · Sep 25th, 2023, 18:00

I have a 2004 Volvo S40. Recently there is a high pitched whistling sound whenever I start the engine. The sound gets louder when I accelerate down the road. There is also black smoke emanating from the exhaust pipe. I am just guessing, but is this caused by a faulty Fuel Pressure Regulator? if not, any advice would be greatly appreciated. Thank you.

magnuz · Sep 27th, 2023, 21:32

Which engine ?
Either way, sounds like an air intake leak of some sort ? if it's a turbo model check air intake/ boost pipe intercooler, etc,

Sep 25th, 2023, 18:00	#1
Rbalders40 New Member Last Online: Sep 26th, 2023 17:24 Join Date: Sep 2023 Location: Tracy	High pitch whistling when acceleratiing- 2004 S40 I have a 2004 Volvo S40. Recently there is a high pitched whistling sound whenever I start the engine. The sound gets louder when I accelerate down the road. There is also black smoke emanating from the exhaust pipe. I am just guessing, but is this caused by a faulty Fuel Pressure Regulator? if not, any advice would be greatly appreciated. Thank you.

Sep 27th, 2023, 21:32	#2
magnuz Ancient Last Online: Apr 23rd, 2024 20:31 Join Date: May 2012 Location: chesterfield	Which engine ? Either way, sounds like an air intake leak of some sort ? if it's a turbo model check air intake/ boost pipe intercooler, etc,

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)