Intermittent groaning sound when accelerating

nahmer
25

Asked by nahmer Oct 26, 2007 at 02:48 PM about the 2007 Chevrolet Impala

Question type: Maintenance & Repair

This 2007 Chevrolet Impala with a 3.9L engine, makes an intermittent groaning sound when accelerating.  The dealer finally had the regional GM engineer ride with him.  He says that this occurs when the car shifts from 3 to 6 cylinders (a fuel saving measure) and nothing can be done about it.  Other than that, this is a wonderful car.  

1 Answer

littlehorn
30,085

Sounds like he is telling you the truth. It could just be the switchover from 3-6 cylinders. I would give it time and see if it becomes less noticeable.

Your Answer

Add photo

Related Questions

Search Chevrolet Impala Questions

Chevrolet Impala Experts

#1 Danny Wang
Danny Wang
Reputation 1,170
#2 Tom Demyan
Tom Demyan
Reputation 890
#3 littlehorn
littlehorn
Reputation 780
View All

Related Models For Sale

Used Chevrolet Malibu"
1,096 Great Deals out of 59,703 listings starting at $799
Used Dodge Charger"
402 Great Deals out of 24,513 listings starting at $3,900
Used Buick LaCrosse"
338 Great Deals out of 18,976 listings starting at $2,995
Used Honda Accord"
1,186 Great Deals out of 61,913 listings starting at $900
Used Nissan Altima"
1,389 Great Deals out of 85,027 listings starting at $1,495
Used Ford Mustang"
525 Great Deals out of 35,144 listings starting at $1,600
Used Chrysler 300"
445 Great Deals out of 21,236 listings starting at $3,200
Used Nissan Maxima"
454 Great Deals out of 14,004 listings starting at $1,800
Used Chevrolet Monte Carlo"
34 Great Deals out of 1,763 listings starting at $1,599
Used Toyota Camry"
1,603 Great Deals out of 80,197 listings starting at $1,295
Used Dodge Challenger"
209 Great Deals out of 17,772 listings starting at $8,987
Used Ford Fusion"
1,190 Great Deals out of 63,743 listings starting at $2,495
Used Chevrolet Tahoe"
759 Great Deals out of 23,760 listings starting at $1,950
Used Chevrolet Silverado 1500"
1,767 Great Deals out of 143,955 listings starting at $1,495