I drive a 2000 mitsubishi eclipse GS. When I rev up the car, i begin to hear a hissing noise from the engine at about 3,000-4,000 rpm. When I shift into the next gear (lower rpms) it goes away until i reach the higher rpms again. This only happens when the car is in gear, if it is in neutral I cannot seem to get the noise. The engine is not turbocharged
What could this be? How do I find and fix the problem?
2007-09-28 02:46:27 · 4 answers · asked by rabeatz 2 in Cars & Transportation ➔ Maintenance & Repairs
There is a noticable decrease in the accelleration rate when the hissing noise kicks in. The car still accellerates, but not at the rate prior to the sound.
It is also on/off. Sometimes I can run the car without ever hearing the noise, and other times it will happen.
2007-09-28 03:20:58 · update #1
could be the exhaust is plugging up get it checked
may also be associated with a deep throaty sound
2007-09-28 03:03:11 · answer #1 · answered by mobile auto repair (mr fix it) 7 · 0⤊ 1⤋
It may be that you heard the hiss caused by the high amount of air being used.
I can hear mine sucking air under full acceleration, more so with a low restriction air filter.
It could be a vacuum leak or an unconnected vacuum line. But I just think that it most likely is just normal.
But if you have noticed a major change in fuel economy or performance, look for a vacuum leak.
2007-09-28 02:54:09 · answer #2 · answered by teamepler@verizon.net 5 · 0⤊ 1⤋
I'm with teamepler on this one, the problem sounds like a vacuum leak
2007-09-28 03:38:08 · answer #3 · answered by no_rest_for_me 2 · 0⤊ 0⤋
Check intake manifoil and exhaust.Plug can be loose too.
2007-09-28 03:06:05 · answer #4 · answered by Anonymous · 0⤊ 0⤋