Why is my car having a rough idle at stop lights?

Asked by Anthony Feb 05, 2023 at 01:22 PM about the 2016 Ford Mustang GT Premium Coupe RWD

Question type: Maintenance & Repair

I have a 2016 mustang gt.  When i come to a stop light my engine idles
down and feels like its going to stall.  RMS drop almost to zero then come
back up and do it again.  I have replaced the spark plugs, ignition coils, MAF,
evap purge cannister, cleaned the throttle body and did the smoke test. I
have changed out 2 of the 4 02 sensors and about to change the others.  
Does anyone else have this issue?

2 Answers
310,255

Gene answered about a year ago

Sounds like a ISC problem, did you do a code or live data test?

Mark helpful

Anthony answered about a year ago

It never throws codes. Not even when it completely stalls. I just changed out the throttle body and I am still having issues. I have read online that a lot of mustang owners have had this issue. Unfortunately noone seems to have an answer for the issue.

Mark helpful

Your Answer:

Related Questions

Shortcuts

Search Ford Mustang Questions

CarGurus Experts

  • #1
    Gene Arnett
    Reputation
    3,160
  • #2
    Bob Beaman
    Reputation
    2,690
  • #3
    rst429
    Reputation
    2,640
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet Camaro
16 Great Deals out of 307 listings starting at $9,995
Used Chevrolet Corvette
28 Great Deals out of 1,058 listings starting at $15,871
Used Dodge Challenger
28 Great Deals out of 477 listings starting at $7,999
Used Dodge Charger
39 Great Deals out of 645 listings starting at $4,888
Used Ford F-150
321 Great Deals out of 15,103 listings starting at $1,712
Used Ford Mustang Shelby GT350
28 listings starting at $55,998
Used BMW 3 Series
71 Great Deals out of 1,168 listings starting at $1,795
Used BMW M3
8 Great Deals out of 89 listings starting at $15,995
Used Chevrolet Silverado 1500
195 Great Deals out of 5,967 listings starting at $2,975
Used Lexus IS
18 Great Deals out of 305 listings starting at $6,449
Used Honda Civic
176 Great Deals out of 3,690 listings starting at $1,995
Used Mercedes-Benz C-Class
98 Great Deals out of 1,450 listings starting at $3,799

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. Content will be removed if CarGurus becomes aware that it violates our policies.