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View Full Version : Wont start when hot?


BlazinEagle
12-09-2010, 06:35 PM
What will cause the engine to not start when it is hot. Car starts fine when it is cold or just warm but when you drive it awhile then turn it off you cannot restart it until the engine cools down.
Thanks in advance.
87stangbbb
12-09-2010, 06:38 PM
i think i heard being out of time can do that.
BlazinEagle
12-09-2010, 07:04 PM
also, is anyone running a iac blockoff plate? likes/dislikes?
GREAZY
12-09-2010, 07:10 PM
Cranking slow or normal ? if slow , I would think the timing is to far advanced
BlazinEagle
12-09-2010, 07:29 PM
Cranking sounds normal
wildstang89
12-09-2010, 08:21 PM
How long do you have to let it cool down?
BlazinEagle
12-09-2010, 08:27 PM
timing is set at 10 degrees and it does not take too long maybe 20 minutes.
orangeconv
12-09-2010, 09:22 PM
Check the grounds
Jeff88coupe
12-09-2010, 09:45 PM
If it cranks just fine...check the TFI module on the distributer.
BlazinEagle
12-09-2010, 11:17 PM
Yeah it cranks fine. When it is cold it starts right up like a new engine, but as soon as it gets hot and u shut it off it will not start at all
mustang8998
12-09-2010, 11:45 PM
If it cranks just fine...check the TFI module on the distributer.

I was thinking this, too.

I have a distributor, that is good, that you could try, or just swap the TFI and see if it helps.
sean
12-10-2010, 01:58 AM
Had a friends car do this. His pos cable was very loose and his ground wire was very thin and the wires were old and crunchy. Fixed that and it started right up.
lxenvy
12-10-2010, 11:11 AM
Check grounds for sure. How many grounds do u have? On the motor i mean? And i had a fuel pump that was bad once that when it got hot it would shut off.
tdm309
12-11-2010, 06:15 PM
Does it shut itself off while driving? Or does it run till you shut it off then wont restart? I would think first is the TFI module. They are not very expensive and im sure you can find someone to let you borrow a dis to try see if that fixes it if not definetly check grounds.
dsmawd350
12-11-2010, 06:42 PM
I know on the fbodys the ignition module on the head would get hot when bad and shut off after the car warmed up. sounds ignition related.
BlazinEagle
12-11-2010, 08:00 PM
Car sounds like it tries to crank, but it does sound like it is a faster crank and you can smell fuel as well. I am going to try to swap tfi to check. Also another problem is the little box under the steering column that is for the wiper relay. Is there different style plugs for those. I cannot find a plug for the one I have (I have a plug under there that looks like it should work but it is a little too big.
nsaniti
12-22-2010, 04:54 PM
symptoms scream tfi.. definitely try that, theyre only like 50$
BlazinEagle
12-22-2010, 11:47 PM
I got one but right now it is too damn cold to pull the dizzy and put the new module in. I am driving the F150 for awhile since the roads suck.
nsaniti
12-23-2010, 03:21 AM
you shouldnt have to pull the dizzy, mark the bottom where it goes into the block and turn it far enough to pull the tfi off. tops of a 5min job as long as your ac pump isnt in the way like mine is -_-
4EYED85GT
12-23-2010, 04:25 PM
My car did this when I first bought it. First day I drove it to work I had to stop and get gas, got back in to start it and it would just crank slowly. Turned out to be the LT headers were almost touching the starter. Causing the starter to get hot and bind up. Went with a mini starter and no problems since. This was my frustrating experience.