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Flapping noise when accelerating, near dash or engine. Started on monday has gotten worst since.

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2005'Towncar. 40k miles. Started making an odd sound on acceleration; hard to describe but sounds like it is coming from passenger dash side. Maybe an air noise?? No sound on very soft acceleration


Turn off heater/air conditioner and accelerate briskly. If noise does not occur problem is probably a regulator in the heater/air conditioning system located under the dash.

Feb 14, 2015 | 2005 Lincoln Town Car

1 Answer

Strange whirring noise just started behind clio dash engine runs but lumpy on acceleraction


Possible that you have a vacuum leak behind the dash. That would cause the noise and the run issue. No info in the USA on that car but lots of vehicles have vacuum controls for the heater and a/c. Need to disassemble enough to determine the source but very likely vacuum.

May 26, 2014 | 2002 Renault Clio

1 Answer

Geo metro threw low oil light started loosing power pulled off added oil started back up engine started to sound better felt better went to pull out of parking lot started to move forward and something in...


Would likely require a complete tear down and rebuild of the engine. A loose piston rod will cause a loud knocking noise. You said very very loud, so I think that would be the engine lower end, a rod or crankshaft or piston problem.
If that's the case, you'd be better off just replacing the engine.

Aug 29, 2013 | Geo Metro Cars & Trucks

1 Answer

2004 jag xj8 low oil smoking when accelerate flapping noise


ck your coolant for a mixture of oil & coolant & any coolant in your oil. Sounds like a faulty head gasket or bad valve. where any of the plugs wet with oil or coolant? If so head gasket or valves. good luck

Jul 15, 2017 | 2004 Jaguar X-Type

2 Answers

While driving all of a sudden my 1999 ford expedition started making this flapping noise coming from the engine. What could this be? Can I drive it to a repair shop?


It could be a number of things, but I'm going to go with what may be the most obvious (and least expensive) problem, which is the serpentine belt that drives the fan, alternator, water pump, power steering pump, etc. Open the hood and look at your belt(s) and look for any obvious breaks or tears, separation, or other damage or obstructions. If it is a belt giving out and separating, you may be able to cut off the part that is "flapping" against the inside of the engine compartment, and make it to a parts store. I hope this helps, and good luck. :)

Jan 20, 2011 | 1999 Ford Expedition

1 Answer

Noise from erg valve of TDI passat


sound like turbo noise its close to egr valve.

Apr 07, 2009 | 2003 Volkswagen Passat

1 Answer

Clacking/Flapping sound coming from engine compartment


Best thing to do is take it in to see if the oil pump is working properly. A oil pump not pumping properly will lead to what people call a "dry valve tap". The moving parts in the engine will make noise when there is no lubrication happening. Especially the parts that are moving the valves. That why they call it " dry valve tap".
Has the engine light stayed on at all?

Apr 02, 2009 | 1997 Ford Taurus

1 Answer

Kocking/flapping noise


did you check to see if your belt broke? drives the compressor and the alternator

Sep 21, 2008 | 2003 Saturn VUE

1 Answer

I have a 1998 Jeep Grand Cherokee 5.9L, and recently, the vehicle has developed a tapping sound in the front passenger dash near the A/C vent. It began as just an ocassional tapping, and then became more...


Check engine oil level and confirm engine lubrication. Could be the tappets clicking due to not enough oil up there. Does noise go down as engine heats up?

Aug 26, 2017 | Jeep Grand Cherokee Cars & Trucks

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