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
307,235

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
    3,140
  • #2
    Bob Beaman
    Reputation
    2,680
  • #3
    rst429
    Reputation
    2,600
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet Camaro
17 Great Deals out of 465 listings starting at $10,995
Used Dodge Challenger
32 Great Deals out of 782 listings starting at $11,480
Used Dodge Charger
35 Great Deals out of 894 listings starting at $4,888
Used Chevrolet Corvette
21 Great Deals out of 778 listings starting at $15,900
Used Ford F-150
321 Great Deals out of 13,756 listings starting at $4,888
Used Ford Mustang Shelby GT350
19 listings starting at $64,900
Used BMW 3 Series
58 Great Deals out of 1,207 listings starting at $2,500
Used BMW M3
6 Great Deals out of 79 listings starting at $14,995
Used Chevrolet Silverado 1500
183 Great Deals out of 7,808 listings starting at $7,777
Used Honda Civic
193 Great Deals out of 4,001 listings starting at $440
Used Jeep Wrangler
139 Great Deals out of 5,987 listings starting at $6,500
Used Toyota Camry
44 Great Deals out of 1,139 listings starting at $2,500

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.