wont start after its warmed?
Forums at Modded Mustangs
Home Register FAQ Members List Calendar Timeslips Blogs Garage Gallery Auto Loans Search Today's Posts Mark Forums Read Auto Escrow


Go Back   Forums at Modded Mustangs > Mustang Forums > 5.0 Mustangs

ModdedMustangs.com is the premier Ford Mustang Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools
Old March 2nd, 2011, 12:03 AM   #1
Regular
 
02gtbangstang's Avatar
 
1997 Cobra
 
Join Date: Jan 2008
Location: Greeley, Co
Posts: 290
02gtbangstang is on a distinguished road
iTrader: 0 reviews
Default

wont start after its warmed?


hey guys,
On the 86 5.0 i just picked up, like the title says, the car with fire right up first turn of the key. But once it warms up to normal operating temp and the car is shut off it will not start until i let it sit for bout an hour. Anybody had this problem or know what wrong?
__________________



2002 GT- Sold
1986 GT- Sold
  Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old March 2nd, 2011, 12:12 AM   #2
Regular
 
henry03250's Avatar
 
85 Gt, 95 Gt
 
Join Date: Apr 2010
Location: Arkansas
Posts: 50
henry03250 is on a distinguished road
iTrader: 0 reviews
Default

What do u mean after it warms up? Can u Drive it around for a while with no problems?
  Reply With Quote Quick reply to this message
Old March 2nd, 2011, 12:13 AM   #3
Hardcore Enthusiast
 
gripthenboost's Avatar
 
91 Mustang GT
8.97 @ 162
 
Join Date: Apr 2010
Location: New York
Posts: 2,003
gripthenboost will become famous soon enoughgripthenboost will become famous soon enough
iTrader: 0 reviews
Default

I think the starter is old, check to see I the car has aftermarket headers, they might cause the starter to get hot so when you try to start the car again it won't be able to turn because it locked up, just my 2 cents it happened to me.
__________________
  Reply With Quote Quick reply to this message
Old March 2nd, 2011, 12:20 AM   #4
Regular
 
02gtbangstang's Avatar
 
1997 Cobra
 
Join Date: Jan 2008
Location: Greeley, Co
Posts: 290
02gtbangstang is on a distinguished road
iTrader: 0 reviews
Default

ya henry i can start it, drive around fine and idles just fine. But like i said if it reaches normal operating temp it wont fire back up. But if its cold and i start it and shut it off right away it will start right up again. Only does this after the engine is hot?
__________________



2002 GT- Sold
1986 GT- Sold
  Reply With Quote Quick reply to this message
Old March 2nd, 2011, 12:25 AM   #5
Hardcore Enthusiast
 
gripthenboost's Avatar
 
91 Mustang GT
8.97 @ 162
 
Join Date: Apr 2010
Location: New York
Posts: 2,003
gripthenboost will become famous soon enoughgripthenboost will become famous soon enough
iTrader: 0 reviews
Default

Is the motor even cranking over?
__________________
  Reply With Quote Quick reply to this message
Old March 2nd, 2011, 12:57 AM   #6
Regular
 
02gtbangstang's Avatar
 
1997 Cobra
 
Join Date: Jan 2008
Location: Greeley, Co
Posts: 290
02gtbangstang is on a distinguished road
iTrader: 0 reviews
Default

ya its cranking over just fine!
__________________



2002 GT- Sold
1986 GT- Sold
  Reply With Quote Quick reply to this message
Old March 2nd, 2011, 12:59 AM   #7
I Post Entirely Way Too Much
 
ryanw's Avatar
 
1991 Ford Mustang GT
 
Join Date: May 2007
Location: San Diego, California
Posts: 11,185
ryanw is a glorious beacon of lightryanw is a glorious beacon of lightryanw is a glorious beacon of lightryanw is a glorious beacon of lightryanw is a glorious beacon of lightryanw is a glorious beacon of light
iTrader: 1 reviews
Default

Id try a new starter or a heat shield of some sort, or do both
__________________

DART 331ci stroker, AFR 185 heads,
Trick Flow R intake,
Accufab 70mm tb, 75mm pro m Maf, 30lb injectors,
jba headers, 2 1/2" x pipe
flowmaster super 10 mufflers,
255 fuel pump,
3:27 gears
  Reply With Quote Quick reply to this message
Old March 2nd, 2011, 01:04 AM   #8
Regular
 
02gtbangstang's Avatar
 
1997 Cobra
 
Join Date: Jan 2008
Location: Greeley, Co
Posts: 290
02gtbangstang is on a distinguished road
iTrader: 0 reviews
Default

even tho its turning over ok and trying to start but wont?
__________________



2002 GT- Sold
1986 GT- Sold
  Reply With Quote Quick reply to this message
Old March 2nd, 2011, 01:13 AM   #9
Newbie
 
88 Mustang lx
 
Join Date: Apr 2010
Location: Millbrook,al
Posts: 43
marshall88lx is on a distinguished road
iTrader: 0 reviews
Default

I had this same problem , it was vapor lock my fuel line was right next to my header!
  Reply With Quote Quick reply to this message
Old March 2nd, 2011, 01:16 AM   #10
I Post Entirely Way Too Much
 
ryanw's Avatar
 
1991 Ford Mustang GT
 
Join Date: May 2007
Location: San Diego, California
Posts: 11,185
ryanw is a glorious beacon of lightryanw is a glorious beacon of lightryanw is a glorious beacon of lightryanw is a glorious beacon of lightryanw is a glorious beacon of lightryanw is a glorious beacon of light
iTrader: 1 reviews
Default

Originally Posted by 02gtbangstang View Post
even tho its turning over ok and trying to start but wont?
oh..... well then im not sure... i thought you were saying it wouldnt crank when it was hot.
__________________

DART 331ci stroker, AFR 185 heads,
Trick Flow R intake,
Accufab 70mm tb, 75mm pro m Maf, 30lb injectors,
jba headers, 2 1/2" x pipe
flowmaster super 10 mufflers,
255 fuel pump,
3:27 gears
  Reply With Quote Quick reply to this message
Old March 2nd, 2011, 01:47 AM   #11
MM Fanatic
 
fogged306's Avatar
 
89 GT
 
Join Date: Apr 2007
Location: NY
Posts: 4,875
fogged306 has a spectacular aura aboutfogged306 has a spectacular aura aboutfogged306 has a spectacular aura about
iTrader: 2 reviews
Default

Originally Posted by 02gtbangstang View Post
even tho its turning over ok and trying to start but wont?
If it's turning over just the same hot as it is cold but it just won't fire, then it's not a starter issue. These cars do have problems killing starters with heat especially if you have longtubes, but the classic symptoms of a starter dying from the heat is slow cranking.

Originally Posted by marshall88lx View Post
I had this same problem , it was vapor lock my fuel line was right next to my header!
I've seen this before too and it would be a good thing to check. It's free and easy to do.
  Reply With Quote Quick reply to this message
Old March 2nd, 2011, 02:38 AM   #12
Banned
 
1989 Mustang GT
 
Join Date: Apr 2008
Posts: 3,246
1989Gt. is on a distinguished road
iTrader: 4 reviews
Send a message via AIM to 1989Gt. Send a message via Skype™ to 1989Gt.
Default

mine does this as well but it turns over slow as shit and its a pain to start is it the heat from my xpipe maybe causing my starter to screw up?
  Reply With Quote Quick reply to this message
Old March 2nd, 2011, 09:34 AM   #13
Hardcore Enthusiast
 
gripthenboost's Avatar
 
91 Mustang GT
8.97 @ 162
 
Join Date: Apr 2010
Location: New York
Posts: 2,003
gripthenboost will become famous soon enoughgripthenboost will become famous soon enough
iTrader: 0 reviews
Default

Originally Posted by 1989Gt. View Post
mine does this as well but it turns over slow as shit and its a pain to start is it the heat from my xpipe maybe causing my starter to screw up?
you have long tubes?
__________________
  Reply With Quote Quick reply to this message
Old March 2nd, 2011, 04:48 PM   #14
Banned
 
1989 Mustang GT
 
Join Date: Apr 2008
Posts: 3,246
1989Gt. is on a distinguished road
iTrader: 4 reviews
Send a message via AIM to 1989Gt. Send a message via Skype™ to 1989Gt.
Default

No but i know my xpipe is right there and my shorty headers im just saying it does get hot under my hook lol, ALso it slow cranks and is a biotch to start and it only happens when its warm
  Reply With Quote Quick reply to this message
Old March 2nd, 2011, 10:31 PM   #15
Regular
 
02gtbangstang's Avatar
 
1997 Cobra
 
Join Date: Jan 2008
Location: Greeley, Co
Posts: 290
02gtbangstang is on a distinguished road
iTrader: 0 reviews
Default

Fogged306, how do i test to see if it is vapor lock?
__________________



2002 GT- Sold
1986 GT- Sold
  Reply With Quote Quick reply to this message
Old March 2nd, 2011, 11:21 PM   #16
Regular
 
henry03250's Avatar
 
85 Gt, 95 Gt
 
Join Date: Apr 2010
Location: Arkansas
Posts: 50
henry03250 is on a distinguished road
iTrader: 0 reviews
Default

So you can just crank forever after its been warm and shut off untill the battery runs down and nothing? no sputterin or spitting or even trying to start?
  Reply With Quote Quick reply to this message
Old March 3rd, 2011, 01:23 AM   #17
Regular
 
 
Join Date: May 2008
Posts: 159
817B!GT3X is on a distinguished road
iTrader: 0 reviews
Default

Get the tfi module tested. More than likely its the tfi module.

Aswell ground cables. Yes beilive me a ground cable can cause this. It can probally be the one that goes to the frame and battery post. That was the problem on mine.
  Reply With Quote Quick reply to this message
Old March 3rd, 2011, 01:31 AM   #18
Banned
 
1989 Mustang GT
 
Join Date: Apr 2008
Posts: 3,246
1989Gt. is on a distinguished road
iTrader: 4 reviews
Send a message via AIM to 1989Gt. Send a message via Skype™ to 1989Gt.
Default

how do you test the tfi module?
  Reply With Quote Quick reply to this message
Old March 3rd, 2011, 02:44 AM   #19
MM Fanatic
 
fogged306's Avatar
 
89 GT
 
Join Date: Apr 2007
Location: NY
Posts: 4,875
fogged306 has a spectacular aura aboutfogged306 has a spectacular aura aboutfogged306 has a spectacular aura about
iTrader: 2 reviews
Default

Originally Posted by 02gtbangstang View Post
Fogged306, how do i test to see if it is vapor lock?
I have no idea how to actually test for vapor lock. I just had a friends car do something very similar. Only his would run like crap when it got hot and if you shut it off, it wouldn't start until it cooled. We noticed that the fuel lines were really close to the headers, so we moved them away from them just to see if that was the problem, and just like that, the car never had that issue again.

I just meant to check and see if the fuel lines were close to the headers.
  Reply With Quote Quick reply to this message
Old March 3rd, 2011, 10:56 PM   #20
Banned
 
1989 Mustang GT
 
Join Date: Apr 2008
Posts: 3,246
1989Gt. is on a distinguished road
iTrader: 4 reviews
Send a message via AIM to 1989Gt. Send a message via Skype™ to 1989Gt.
Default

See this only happens when i warm the car drive it somewhere and come back and try to start itll crank slow, then when the car is cooler it willfinally start still on slow cranking.
  Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Forums at Modded Mustangs forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools


Threads Similar to: wont start after its warmed?
Thread Thread Starter Forum Replies Last Post
car wont start Lind 94-95 9 March 2nd, 2010 10:11 PM
car wont start.. soop7 V6 Mustangs 3 December 1st, 2007 04:18 PM
car wont start help 89hatchback 5.0 Mustangs 6 February 19th, 2007 07:50 PM
wont start still DragonFreak 96 - 98 3 February 13th, 2007 01:08 PM



All times are GMT -4. The time now is 05:26 PM.
Modded Mustangs is ©2005-2008, All Rights Reserved, And is Not Affiliated with Ford Motor Company.
Forum is powered by vBulletin ©2000 - 2014, Jelsoft Ent. Ltd. & SEO by vBSEO 3.3.2 ©2009, Crawlability, Inc.

powered by vBulletin ©2000 - 2014, Jelsoft Ent. Ltd.