My 2001 Toyota Avalon with 260 K on RPM fluctuate frequently and running rich

Asked by Jun 10, 2017 at 03:37 PM about the 2001 Toyota Avalon XLS

Question type: Maintenance & Repair

My 2001 Toyota Avalon with 260 K on it running rich and RPM fluctuate frequently  

My 2001 Toyota Avalon with 260K on it is running too rich. I do not get good mileage. When I start the car in the morning, the RPM goes up 3K and after 3-5 minutes it goes down. It also makes rattling sound at the start. When I drive the car, the RPM fluctuates a lot even if I don’t push on gas paddle.
I changed oil filter, air filter, new Mufler and also change oil on regular basis. Please help me to find out the problem.  I wanna keep it for another 100 K miles. Thanks a lot.



1 Answer

250,865

Rattling noise at start? Is it the engine making the noise? Check the belt and accessories? Clan the throttle body? Did you check for vacuum leaks, scan for the codes? O2 Sensors original?

Best Answer Mark helpful

Your Answer

Toyota Avalon Experts

  • #1
    Tom Demyan
    Reputation
    1,780
  • #2
    lilfrosty357
    Reputation
    900
  • #3
    dandyoun
    Reputation
    680
View All

Related Models For Sale

Used Toyota Camry
43 Great Deals out of 1,594 listings starting at $1,700
Used Honda Accord
77 Great Deals out of 1,112 listings starting at $748
Used Toyota Highlander
20 Great Deals out of 603 listings starting at $2,900
Used Toyota Corolla
158 Great Deals out of 3,427 listings starting at $2,500
Used Nissan Maxima
29 Great Deals out of 331 listings starting at $3,976
Used Toyota RAV4
70 Great Deals out of 2,877 listings starting at $2,999
Used Nissan Altima
70 Great Deals out of 1,277 listings starting at $2,750
Used Toyota 4Runner
6 Great Deals out of 429 listings starting at $5,995
Used Honda Civic
323 Great Deals out of 4,171 listings starting at $1,494
Used Chevrolet Impala
58 Great Deals out of 930 listings starting at $1,900
Used Hyundai Sonata
43 Great Deals out of 1,301 listings starting at $1,781

Used Cars For Sale

2018 Toyota Avalon For Sale
18 listings starting at $42,389
2017 Toyota Avalon For Sale
19 listings starting at $35,716
2016 Toyota Avalon For Sale
15 listings starting at $33,280
2015 Toyota Avalon For Sale
9 listings starting at $28,950
2014 Toyota Avalon For Sale
17 listings starting at $23,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.