why will my mustang not idle

Asked by Mary May 23, 2014 at 12:12 PM about the 1966 Ford Mustang Coupe RWD

Question type: Maintenance & Repair

my 1966 inline 6 200 mustang will start rough, but will not idle. if you keep pumping the gas it will stay running if not it stalls. What is going on?

3 Answers

200,915

Sounds like the carb may need cleaning. How long has it set not being drivin?

1 people found this helpful.
200,915

As per our pm: Check for vacuum leaks. Older cars tend to do more setting in the garage than being drivin. How long had it been parked before you drove it to store? How old is the gas in it? If gas been in there for a month or more you probably fighting a condensation issue. Try adding some fuel cleaner to your gas if so. If gas older than that then I would remove all the gas from tank, clean the tank and then add new gas.

1 people found this helpful.
200,915

Also if it still has the old points style ignition might try filing them with an Emory board. Condensation plays hell on them too. If it does have old points ignition I would look into replacing them with the electronic ign conversion kit. They are fairly cheap and work great.

Your Answer:

Mustang

Looking for a Used Mustang in your area?

CarGurus has 1,253 nationwide Mustang listings starting at $4,995.

Postal Code:

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
26 Great Deals out of 343 listings starting at $10,500
Used Chevrolet Corvette
31 Great Deals out of 1,000 listings starting at $11,995
Used Dodge Charger
41 Great Deals out of 602 listings starting at $4,888

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.