Intermittent groaning sound when accelerating

nahmer
25

Asked by 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
39,265

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 1,460
#2 FordNut
FordNut
Reputation 1,360
#3 Tom Demyan
Tom Demyan
Reputation 1,310
View All

Related Models For Sale

Used Chevrolet Malibu"
1,084 Great Deals out of 65,494 listings starting at $695
Used Dodge Charger"
577 Great Deals out of 30,951 listings starting at $2,343
Used Honda Accord"
1,230 Great Deals out of 74,318 listings starting at $995
Used Nissan Maxima"
402 Great Deals out of 22,578 listings starting at $1,500
Used Chrysler 300"
562 Great Deals out of 21,831 listings starting at $1,500
Used Nissan Altima"
1,447 Great Deals out of 81,007 listings starting at $695
Used Dodge Challenger"
386 Great Deals out of 23,889 listings starting at $8,995
Used Toyota Camry"
1,489 Great Deals out of 93,841 listings starting at $895
Used Ford Mustang"
726 Great Deals out of 39,927 listings starting at $1,450
Used Chevrolet Tahoe"
966 Great Deals out of 36,273 listings starting at $1,500
Used Buick LaCrosse"
334 Great Deals out of 15,347 listings starting at $990
Used Chevrolet Monte Carlo"
16 Great Deals out of 2,052 listings starting at $2,792
Used Ford Fusion"
1,242 Great Deals out of 75,466 listings starting at $588

Used Cars For Sale

2017 Chevrolet Impala For Sale
4,695 listings starting at $18,766
2016 Chevrolet Impala For Sale
111 Great Deals out of 4,511 listings starting at $16,000
2015 Chevrolet Impala For Sale
101 Great Deals out of 2,903 listings starting at $14,539
2014 Chevrolet Impala For Sale
122 Great Deals out of 2,442 listings starting at $10,998
2013 Chevrolet Impala For Sale
84 Great Deals out of 1,796 listings starting at $5,700