Why does my mustang shut off after 15 min?


Asked by JDKKJ Jun 16, 2013 at 12:08 PM about the 1999 Ford Mustang STD Convertible

Question type: Maintenance & Repair

1999 mustang with a v-6 shuts off after 15 min then you need to wait 10 min before it will start any ideas ?

2 Answers


hook up a fuel pressure guage. let it run and when it quits see if its fuel pressure that you are loosing. if not then you must be losing spark.

1 out of 1 people think this is helpful.
Tracy Hooks

Nice car and good, reliable powertrain. kbro is most likely correct since electrical components (like fuel pumps) heat up, lose contact, cool off and then work again. Any other concerns? Check engine light, ping or backfire (muffled pop sound) on acceleration? You can try listening for the fuel pump when it's cooled off and when it fails - it doesn't always indicate a bad pump but it can. When the car has been sitting a while, turn off all the accessories and roll the windows up. Turn the Ignition to "ON" and listen for a humming in the back of the car - it only lasts for 3 seconds when the engine is off so you may have to do it several times. That hum is the fuel pump. Run the vehicle until it stops again and check for the sound again the same way. No noise - no fuel.

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

Search Ford Mustang Questions

Ford Mustang Experts

#1 Tom Demyan
Tom Demyan
Reputation 2,780
#2 FordNut
Reputation 990
#3 carGrrl
Reputation 760
View All

Related Models For Sale

Used Chevrolet Camaro"
480 Great Deals out of 26,501 listings starting at $2,950
Used Chevrolet Corvette"
280 Great Deals out of 14,799 listings starting at $3,999
Used Ford Mustang SVT Cobra"
12 Great Deals out of 239 listings starting at $4,500
Used Ford F-150"
3,115 Great Deals out of 178,552 listings starting at $1,450
Used Jeep Wrangler"
977 Great Deals out of 49,487 listings starting at $1,800
Used BMW 3 Series"
1,175 Great Deals out of 37,147 listings starting at $1,900
Used Chevrolet Silverado 1500"
2,207 Great Deals out of 138,353 listings starting at $1,900
Used Honda Civic"
841 Great Deals out of 57,556 listings starting at $999
Used Honda Accord"
960 Great Deals out of 74,162 listings starting at $1,295

Used Cars For Sale

2016 Ford Mustang For Sale
16,678 listings starting at $25,983.43
2015 Ford Mustang For Sale
88 Great Deals out of 7,299 listings starting at $19,900
2014 Ford Mustang For Sale
128 Great Deals out of 4,179 listings starting at $12,199
2013 Ford Mustang For Sale
55 Great Deals out of 1,690 listings starting at $11,998
2012 Ford Mustang For Sale
52 Great Deals out of 1,648 listings starting at $8,995