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5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

won't start when hot

Old 04-04-2007, 02:10 AM
  #11  
Woodard2589
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Default RE: won't start when hot

ORIGINAL: Woodard2589

ya the car still wont start, and its says its at ~140F. The cables aren't even warm so i think the gauge is fine.
do you mean the TFI. cause the thing i bought doesnt have anything to cover it, but the tfi is coated with gel or something like that to protect from heat. i googled it and it sounded like the problems this thing has when it goes bad is what im having problems with. why would either of these things go bad right now? or is it just more strain with the battery in the trunk and since its 18 years old it just needs to be replaced? idk
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Old 04-04-2007, 03:38 PM
  #12  
namor1235
 
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Default RE: won't start when hot

Sounds like ur starter wants to take a crap
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Old 04-06-2007, 12:47 AM
  #13  
Woodard2589
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Default RE: won't start when hot

anyone?
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Old 04-06-2007, 12:56 AM
  #14  
PRO50SC
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Default RE: won't start when hot

OK clarify "won't start"


Cranks but won't start or doesn't crank at all?
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Old 04-06-2007, 12:57 AM
  #15  
mattdel
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Default RE: won't start when hot

thats how the back is supposed to be. install it.
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Old 04-06-2007, 12:58 AM
  #16  
settled4automatic
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Default RE: won't start when hot

ok, 1) we can't come to your house and diagnose it for ya, (unless you pay us lots of $$ anyways)
2) please don't just go throwing parts at it until its fixed, its very impractical!
3) have you checked fuel pressure while the car is malfunctioning?
4) spark when its malfunctioning??

find a fuel pressure gauge and a spark tester, and check that stuff out while the car is hot and not starting for ya! from there you can tell for sure whether its a fuel problem (probable fuel pump concern) or a spark problem (probably a tfi module, but COULD BE ANYTHING) so simply check stuff out. and let us know what you find :P
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