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2004 Nissan Sentra Repair Question


Topics covered: Noise, Gas, Rpm.
Mileage: 92,000 miles.

Asked on February 21, 2011

2004 Nissan Sentra Rattling when I get off the gas

I have a 2004 Nissan Sentra SE-R Spec V 6 speed manual trasnmission. I have about 92000 miles on the car.

When I am driving and get off the gas,when the rpms get down between 2500 and 2000 there is a strange loud rattling/squeeking noise. It only happens in that rpm range and only happens when I get off the gas and the car is in gear. When I accelerate it does not make a noise, or if I shift into neutral it does not make the noise. It almost sounds like its in the console or just in front of the shifter, right in the front center of the car. Thanks for everyones help!
Avatar Asked by ashaway12

Answer

Replied on February 21, 2011

Maybe CAT that is its location if core broken up it will rattel when backpressure increases. jack up and bang on CAT hear rattling

Tiny Answered by Docfixit (expert)
18,416 answers provided
Replied on February 21, 2011

Thanks Docfixit. Stupid question, by CAT you mean Catalytic Converter? The reason I ask is my service engine light has been on for a while and the error code refers to something in the catalytic. I was hoping to avoid an expensive catalytic repair.

Tiny Response from ashaway12
3 questions asked
Replied on February 21, 2011

Yes CAT is catalitic is code P0420?

Tiny Answered by Docfixit (expert)
18,416 answers provided

Replied on February 21, 2011

Yes the code is P0420. What does that mean for my car? If the catalitic needs to be replaced is the car unsafe to drive?

Tiny Response from ashaway12
3 questions asked
Replied on February 22, 2011

Means CAT operating below effeciency you can drive car but fuel milage may decrease and CAT may clog up

Tiny Answered by Docfixit (expert)
18,416 answers provided