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Crank no start after warm up

  • Thread starter Thread starter 88GTFOX
  • Start date Start date Jul 28, 2020
  • Tags Tags
    5.0 no start pip
8

88GTFOX

New Member
Jul 27, 2020
3
0
1
Lima, Ohio
Jul 28, 2020
#1
  • Jul 28, 2020
  • #1
I have with an issue with an 88 where it dies suddenly while at idle and will crank but not fire. When it dies, it’s not sputtering or running rough at all and seems as if it loses spark. There is pressure in the fuel rail and the fuel pump is running. After sitting for some time, it will fire right up and eventually die again at some point once it is warmed up.
I had replaced the ignition module, plugs, wires, cap, rotor when I bought the car and have maybe 50 miles on these components. I just swapped the coil for a new one and had the new module tested and it was fine yesterday but still has the same issue. I just got the car back from a shop that pulled the top end and had my heads re worked, new gaskets etc. One thing I noticed after going through and checking everything was that there was no pressure in the upper radiator hose when the car was at operating temp and it looks like they filled the system with straight water and never went back and filled with coolant, also no heat with the blower motor on. I have not checked for injector pulse yet because I didn’t have anybody to crank it for me. Would the PIP sensor fail this way?
 

General karthief

wonder how much it would cost to ship you a pair
20+ Year Stangneter
Aug 25, 2016
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polk county florida
Jul 28, 2020
#2
  • Jul 28, 2020
  • #2
Yes the pip can be suspect but so can the tfi so for the abcs do the ncc, no it's not a new hip hop dance, it's the famous Cranks but no Start Checklist:
Start at the beginning and go step by step.

Cranks OK, but No Start Checklist for Fuel Injected Mustangs

Cranks OK, but No Start Checklist for Fuel Injected 5.0 Mustangs model years 1986-1995 A word about this checklist before you start: it is arranged in a specific order to put the most likely failure items first. That will save you time, energy and money. Start at the top of the list and work...
www.stangnet.com
 
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8

88GTFOX

New Member
Jul 27, 2020
3
0
1
Lima, Ohio
Jul 28, 2020
#3
  • Jul 28, 2020
  • #3
General karthief said:
Yes the pip can be suspect but so can the tfi so for the abcs do the ncc, no it's not a new hip hop dance, it's the famous Cranks but no Start Checklist:
Start at the beginning and go step by step.

Cranks OK, but No Start Checklist for Fuel Injected Mustangs

Cranks OK, but No Start Checklist for Fuel Injected 5.0 Mustangs model years 1986-1995 A word about this checklist before you start: it is arranged in a specific order to put the most likely failure items first. That will save you time, energy and money. Start at the top of the list and work...
www.stangnet.com
Click to expand...
I will go through the checklist again, that’s how I found a bad TFI before I had my heads redone.
 
8

88GTFOX

New Member
Jul 27, 2020
3
0
1
Lima, Ohio
Jul 29, 2020
#4
  • Jul 29, 2020
  • #4
Ended up swapping the distributor with a new unit and now running without issue. No visible defects with the mechanicals, so I’d say the PIP was toast.
 
$

$wine

Member
Dec 16, 2020
25
4
13
Texas, USA
Dec 16, 2020
#5
  • Dec 16, 2020
  • #5
just curious, why would the pip be toast if it worked when the car is cold?
 

General karthief

wonder how much it would cost to ship you a pair
20+ Year Stangneter
Aug 25, 2016
27,892
10,553
203
polk county florida
Dec 16, 2020
#6
  • Dec 16, 2020
  • #6
$wine said:
just curious, why would the pip be toast if it worked when the car is cold?
Click to expand...
Heat and electrical resistance,
 

General karthief

wonder how much it would cost to ship you a pair
20+ Year Stangneter
Aug 25, 2016
27,892
10,553
203
polk county florida
Dec 19, 2020
#7
  • Dec 19, 2020
  • #7
I learned that here from @jrichker (I already knew about but now have a better understanding) I don't give him and others enough props for the tech advice they has shared in the tech threads.

Progress Thread - Technical Thread/how-to Index

Guys, if "that should be a sticky," then please reply to this thread with the link to your suggestion and why you think it should be added. How to determine if a thread should be included: - Does the topic address a common fox 5.0 owner's needs? / Is it a frequently asked question? / Is it...
stangnet.com
 
$

$wine

Member
Dec 16, 2020
25
4
13
Texas, USA
Dec 21, 2020
#8
  • Dec 21, 2020
  • #8
General karthief said:
I learned that here from @jrichker (I already knew about but now have a better understanding) I don't give him and others enough props for the tech advice they has shared in the tech threads.

Progress Thread - Technical Thread/how-to Index

Guys, if "that should be a sticky," then please reply to this thread with the link to your suggestion and why you think it should be added. How to determine if a thread should be included: - Does the topic address a common fox 5.0 owner's needs? / Is it a frequently asked question? / Is it...
stangnet.com
Click to expand...
What is a good quality brand pickup coil I can try? I took apart my dizzy to rebuild. I don’t want to do all of this to put a cheapo low quality pip coil back in it.
 

General karthief

wonder how much it would cost to ship you a pair
20+ Year Stangneter
Aug 25, 2016
27,892
10,553
203
polk county florida
Dec 21, 2020
#9
  • Dec 21, 2020
  • #9
Rockauto has a Standard brand that should be good.
I don't know what a local parts store has.
 
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