Skip to main content
Topic: Car Won´t Stay Running (Read 1756 times) previous topic - next topic

Car Won´t Stay Running

After a complete revision of the car (that took me a month) i went to do a test run. Ran very good. Left the car for about 3 days. Started again in the morning and ran well. But when i was going to my home the car shut off when idle.....started again and run again at the third try. I Use the car for a new test run and shut down again at 80 km/h. Stop the car and at the fourth try run again. I revised the carb but has enough fuel. Run a very little time and the car shut down again. I was uphill and i push the car to my home (about 2 km, but with the impulse and downhill i raised a speed of 80 km/h !!!). When the car stops, i checked the fuel pump. Works good with enough pressure. Now i was trying to start the car with a different battery and was running well..........and die again. The car simply dies without a signal ! .The car can starts but it cant stay running. I guess that is a electrical problem. Any ideas ?

 Any help would be very appreciated.....
1985 Mercury Cougar V6
1989 F-200 V8
1996 Explorer V6
2001 F-150

Re: Car Won´t Stay Running

Reply #1
Sounds like an ignition problem. Check the coil and the Duraspark box, they could be failing when they get hot
2015 Mustang GT Premium - 5.0, 6-speed, Guard Green - too much awesome for one car

1988 5.0 Thunderbird :birdsmily: SOLD SEPT 11 2010: TC front clip/hood ♣ Body & paint completed Oct 2007 ♣ 3.55 TC rear end and front brakes ♣ TC interior ♣ CHE rear control arms (adjustable lowers) ♣ 2001 Bullitt springs ♣ Energy suspension poly busings ♣ Kenne Brown subframe connectors ♣ CWE engine mounts ♣ Thundercat sequential turn signals ♣ Explorer overhead console (temp/compass display) ♣ 2.25" off-road dual exhaust ♣ T-5 transmission swap completed Jan 2009 ♣

Re: Car Won´t Stay Running

Reply #2
I had a problem where the car would die after a few miles and would refuse to start again for at least half an hour. I changed the coil, plugs, wires, cap, rotor, and ignition module. The problem still remained,  and it turned out to be the distributor stator. It was dying when it heated up, and so the computer couldn't sense the crankshaft position.
[SIGPIC][/SIGPIC]
5.0L Speed density
Explorer intake
'92 Mustang GT cam
GT-40 racing heads
Unequal length headers
Custom-made duals
19# injectors
65mm TB
AFPR
T/C header panel
11" brake upgrade
T/C rear sway bar
Electrical mods: too many to list :D