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  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • Fox 5.0 Mustang Tech

car won't start when warm

  • Thread starter Thread starter summerslam
  • Start date Start date May 12, 2004
S

summerslam

New Member
Nov 6, 2003
14
0
0
May 12, 2004
#1
  • May 12, 2004
  • #1
i have an '86 gt that has been upgraded to mass air...i also have an edelbrock 5.0 performer a set of gt 40 heads an adjustable fuel pressure regulator and a mild cam...everything else is stock for time being

i originally had an overfueling problem, i corrected that by replacing the eec-iv harness and since then the car won't restart once it warms up.... fuel pressure is at 39 psi with vac line on...also right now i have no readings for water or oil temp...other than that the car starts, idles and runs fine - slightly hesitant on throttle response though
 

Starscream88

New Member
Mar 8, 2003
1,277
1
0
Park Ridge NJ
May 12, 2004
#2
  • May 12, 2004
  • #2
Probably your ignition coil
 

mustangsquared

Founding Member
Jun 8, 2002
828
1
16
new bern nc
May 12, 2004
#3
  • May 12, 2004
  • #3
Mine did the same thing...it was the coolant temp sensor. Keep part to replace and worth a try. As for the hestitation try setting the TPS to .98 or .99, it may help.
 
Z

ZERO-7

New Member
May 6, 2004
7
0
0
May 13, 2004
#4
  • May 13, 2004
  • #4
youhave 39# of fuel pressure w/ vac line on thats too high. you should have 39# with no vac. hesitation could be cogged fuel filter or tps needs set
 
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