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Why does my saturn sound so bad when idles?

if the car is loud/noisy there is a hole in the exhaust system and this will cause a rough idle because of a loss of back pressure and the vales will not open and close properly resulting in the rough idle it also will make the engine run hotter and this will cause your spark plug gaps to increase and the spark will be less than needed to ignite the fuel in the cylinder for proper combustion which will result in poor gas mileage and lack of power is the check engine light on?

Aug 23, 2014 | Saturn SL Cars & Trucks

2 Answers

Runs rough and dies what 1 hour well star for 30 min. then die

Check your fuel system, especially your fuel filter and fuel pressure regulator.

Jul 20, 2014 | 1994 Ford Probe

1 Answer

V70 volvo rough start in morning

Sounds like you may need to change your fuel filter. A dirty fuel filter will make it take a bit to make sufficient fuel pressure which will cause a rough idle or low power until it has run long enough to build up proper fuel pressure.

Mar 14, 2014 | Volvo V70 Cars & Trucks

1 Answer

Rough engine sound

Have fuel pump out put checked lack of proper fuel pressure can cause a lean condition and would ultimately lead to spark knock the noise you are most likely speaking of

Jan 04, 2012 | 2001 Mazda MPV

2 Answers

2000 Lincoln Navigator - few days ago started idling very rough when truck is at a stop or in park. Service Engine Light came right around time I noticed that it was idling rough when stopped. Following...

P1131 Lack of HO2S-11 Switch ,Sensor Lean
P1151-Lack of HO2S-21 Switch ,Sensor Lean
PO171- System to Lean (Bank 1)
PO174-Systen to Lean (Bank 2)

Fuel Filter -Plugged
Low Fuel Pressure
Evap System -Leaks
Leaks - in ducting,air filter to throttle
PCV -Leaks
Exhaust System -Leaks
O2 Sensors-worn out

Apr 06, 2011 | 2003 Lincoln Navigator

1 Answer

My engine shakes with smell of rooten egg

if it shakes and smells of rotten eggs, then the catylitic convertor is bad. driveability symtoms are--- lack of power, drop in fuel economy, lack of high speed power, rough idle or stalling are the symtoms of excessive back pressure. due to a plugged up convertor. it should be diagnosed by a mechanic to verify this.

Feb 09, 2011 | Hyundai Elantra Cars & Trucks

1 Answer

My 03 trailblazer just had oil and oil filter changed light still on and still has lack of power and makes rough sound when acclerating more rpms put in it faster noise gets

Oil light still on? means no oil pressure! If motor is tap , tap , tapping , Your gonna burn up your motor.May be oil pump, not going to like that bill.

Jun 14, 2010 | 2003 Chevrolet TrailBlazer

1 Answer

Had transmssion work recently. They put in a new speed sensor. a month or two latwr when i start the car she idles very rough and when i press the gass it feels like i don't have alot of power...

It sounds fuel related the fact that it idles rough and you lack power causes you to press the accelerator pedal more to to get the car to go which in turn causes the transmission to stay in 1st and 2nd gear longer bringing up the rpm's. The problem could be a bad fuel pump not allowing proper fuel pressure to reach the injectors This could also be caused by a bad fuel pressure regulator valve or a bad fuel filter all of these could cause low fuel pressure. It could also be a bad fuel injector or a throttle position sensor (TPS) could also be a bad (PCV) I would suggest having the fuel pressure tested first as I dont think your problem is related to the transmission repair you had done.

Oct 29, 2009 | 1999 Ford Taurus

1 Answer

2001 chevy citation, the a/c just quit working. A hissing sound was heard but the system shows it charged. Also now when the a/c is turned on the car engine runs rough and the engine runs hot, yet has...

You may have a faulty high/low pressure control switch which is not cutting compressor function due to low pressure of refrigerant in the system. The hissing sound is caused by a lack of refrigerant passing through the expansion valve. The other thought I have is that the thermostatic expansion valve or your reciever drier may be clogged.

Jun 28, 2009 | Heating & Cooling

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