My '86 GT quits at highway speeds.


Asked by Jul 06, 2016 at 11:14 AM about the 1986 Ford Mustang GT Convertible

Question type: Maintenance & Repair

My '86 GT 5.0 looses power and stalls out completely after running at
highway speeds and will not restart.  Ford dealer has tried twice and can't fix
it.  Any one with a fix for this?

4 Answers


First year 5.0 / 302 speed density(MAP) sensor fuel injection system, SIMPLE. The EECIV stores plenty of info and can be read in real time data will tell you everything If there's fuel pressure at the rail read PSI. Please POST the Ford dealers name so others can stay AWAY from them! I suggest scanning then based on the Info... Inspect the PCB 30 years matters. I have photo of a bad one posted on my "garage" click on my name and scroll to it.


Couldn't find it. Which picture?


Left to right (second row) 5th photo from the from the bottom.


The first Ford dealer that looked at the car and diagnosed a loose battery terminal, cost to fix $82.54, was Lance Cunninghamm Ford in Knoxville, Tn. Now I'm waiting 3 days for another Ford dealer, this time in Kingsport, Tn to even look at the car. I'm traveling from Knoxville back to Syracuse, NY where my RV is parked. Is there anyway a mechanic can duplicate the conditions where the engine stalls inside the shop? Where are you located and can you fix my Mustang?

Your Answer


Looking for a Used Mustang in your area?

CarGurus has 37,084 nationwide Mustang listings starting at $2,150.


Ford Mustang Experts

  • #1
    Tom Demyan
  • #2
  • #3
    Bob Beaman
View All

Related Models For Sale

Used Chevrolet Camaro
224 Great Deals out of 28,924 listings starting at $3,900
Used Dodge Charger
243 Great Deals out of 32,692 listings starting at $1,800
Used Chevrolet Corvette
101 Great Deals out of 15,519 listings starting at $3,900
Used Ford F-150
2,344 Great Deals out of 215,478 listings starting at $1,300
Used BMW 3 Series
834 Great Deals out of 32,434 listings starting at $995
Used Jeep Wrangler
250 Great Deals out of 19,077 listings starting at $2,500
Used BMW M3
12 Great Deals out of 1,668 listings starting at $6,995
Used Honda Civic
333 Great Deals out of 52,982 listings starting at $1,200

Used Cars For Sale

2014 Ford Mustang GT Convertible For Sale
66 listings starting at $19,900

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.