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94 3.8 cranks no start

  • Thread starter Thread starter billheb
  • Start date Start date Nov 17, 2007
B

billheb

New Member
Nov 17, 2007
5
0
1
Nov 17, 2007
#1
  • Nov 17, 2007
  • #1
Brand new here so hello,
I researched for an hour before i posted this.I found a guy back in 2006 named serioussn95 who had the same problem.94 3.8 5 speed,38 lbs of fuel pressure,spark tester shows its firing,new plugs,new wires,new crank sensor,Its one of those family freebie jobs and the shop she had it at replaced all this and it still doesnt run.I replaced the plugs again myself and fixed the firing order on the wires.I almost forgot to say the engine back fires through the intake.Its almost like it tries to start running the same speed as the starter motor but when you release the key from start to run it dies.Id appreciate any suggestions.thanks
 
2

2002BLGT

Well-Known Member
Dec 18, 2003
2,945
4
59
Bedford VA
Nov 18, 2007
#2
  • Nov 18, 2007
  • #2
billheb said:
Brand new here so hello,
I researched for an hour before i posted this.I found a guy back in 2006 named serioussn95 who had the same problem.94 3.8 5 speed,38 lbs of fuel pressure,spark tester shows its firing,new plugs,new wires,new crank sensor,Its one of those family freebie jobs and the shop she had it at replaced all this and it still doesnt run.I replaced the plugs again myself and fixed the firing order on the wires.I almost forgot to say the engine back fires through the intake.Its almost like it tries to start running the same speed as the starter motor but when you release the key from start to run it dies.Id appreciate any suggestions.thanks
Click to expand...

have you done a compression test ? and does it have passive anti theft , if so something might be up with it , if the PATS is messed up it will have spark will cranking but will die in the run position ......
 
B

billheb

New Member
Nov 17, 2007
5
0
1
Nov 18, 2007
#3
  • Nov 18, 2007
  • #3
no start

Thanks 2002blgt,
How does the pats system control the no start?Does it interrupt the spark or fuel?I worked for a dealer untill 1995 intill I went to the Louisville assemblt plant.I build fords now.My memory is pretty rusty after being away for 12 years.I was working on the assumption that pats came after 1994.thaks,ill check that out.
 
2

2002BLGT

Well-Known Member
Dec 18, 2003
2,945
4
59
Bedford VA
Nov 18, 2007
#4
  • Nov 18, 2007
  • #4
billheb said:
Thanks 2002blgt,
How does the pats system control the no start?Does it interrupt the spark or fuel?I worked for a dealer untill 1995 intill I went to the Louisville assemblt plant.I build fords now.My memory is pretty rusty after being away for 12 years.I was working on the assumption that pats came after 1994.thaks,ill check that out.
Click to expand...

I dont remember what year they started , just an idea to try ....bad ignition switch down on the steering column could be messed up as well
 

Skymarshal

Member
Nov 5, 2004
572
0
16
Dallas
Nov 19, 2007
#5
  • Nov 19, 2007
  • #5
Did you check the firing order at the coil pack? That caught me once...
 

BOSSMAN98

Founding Member
Dec 20, 2001
212
0
0
Kings Mountian, NC
Nov 25, 2007
#6
  • Nov 25, 2007
  • #6
95 3.8

I have the same problem with my 95 V6 right now. I have tracked down the problem to the injectors not firing. The injectors are controlled by the cam position sensor. I have replaced it but it still just cranks. This leads me to beleive there is a bad ground some where. Anyone know where to start looking?

Jon
 

cjones

Founding Member
Jul 20, 2002
1,561
0
37
Avondale, AZ
Nov 28, 2007
#7
  • Nov 28, 2007
  • #7
have you checked for power to the coils and the injectors with the key off??

i don't think 94s had PATS, they had an optional active alarm but not a passive on.
 

cjones

Founding Member
Jul 20, 2002
1,561
0
37
Avondale, AZ
Nov 28, 2007
#8
  • Nov 28, 2007
  • #8
BOSSMAN98 said:
I have the same problem with my 95 V6 right now. I have tracked down the problem to the injectors not firing. The injectors are controlled by the cam position sensor. I have replaced it but it still just cranks. This leads me to beleive there is a bad ground some where. Anyone know where to start looking?

Jon
Click to expand...

the grounds are G201 (R/H cowl) and G104 (L/H front of engine compartment)
 
9

96_3.8stang

New Member
Nov 28, 2007
26
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0
cherryville,NC
Nov 28, 2007
#9
  • Nov 28, 2007
  • #9
im having the same problem ive changed all the same things plugs,plug wires,crank sensor,coil pack.... i have a video check it out http://tinypic.com/player.php?v=6okxait&s=1 and if u dont mind the grounds G201 (R/H cowl) and G104 (L/H front of engine compartment) what is the R/H cowl??
 

cjones

Founding Member
Jul 20, 2002
1,561
0
37
Avondale, AZ
Nov 28, 2007
#10
  • Nov 28, 2007
  • #10
R/H cowl - Right hand cowl - kick panel by passenger's feet
 

cjones

Founding Member
Jul 20, 2002
1,561
0
37
Avondale, AZ
Nov 28, 2007
#11
  • Nov 28, 2007
  • #11
96_3.8stang said:
im having the same problem ive changed all the same things plugs,plug wires,crank sensor,coil pack.... i have a video check it out http://tinypic.com/player.php?v=6okxait&s=1 and if u dont mind the grounds G201 (R/H cowl) and G104 (L/H front of engine compartment) what is the R/H cowl??
Click to expand...

do you have spark??

do you have injector pulse??

do you have positive power at injectors??

what's the fuel pressure??

what's the battery voltage while cranking??
 
9

96_3.8stang

New Member
Nov 28, 2007
26
0
0
cherryville,NC
Nov 28, 2007
#12
  • Nov 28, 2007
  • #12
well today i was messin with the grounds i got it to start but didnt stay running long only for about 5 secs or so...it did this twice today.... this is the first time i heard it run in weeks
 
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