Starting Problems When Hot?!?

Comatose · 06-26-2002, 02:28 PM

Friends car:
86 Coupe, Police Package, stock, 5.0 w/auto, EFI

The car starts fine first thing in the morning or when the weather is cooler, once it gets hot outside, or the car has been driven for awhile, it doesn't want to start after being shut off. Once the car sits for a couple hours it starts again.

Sorry, this is how it's been described to me, I'm haven't experienced it first hand.

Any suggestions would be appreciated, Thanks.

Jeremiah Alexander

Coolbreeze · 06-26-2002, 02:54 PM

Sounds like the TFI module is bad.

jerrys84 · 06-26-2002, 03:53 PM

"won't start"?? as in, turns over won't fire or won't turn over or???

more detail please..

429mustang · 06-26-2002, 04:17 PM

My car does the same thing. I have an 86 GT w/93 H.O. motor, it turns over pretty fast when it's cool, but after I drive for a while or it's hot out it turns over real slow, but it starts. A few times it turned over so slow I didn't think it would start, but it did. I figured maybe it was the starter getting too hot, maybe a heat shield would help? Anyone else have any ideas?

DRASTiK · 06-26-2002, 04:22 PM

429, it sounds like you need a hi torque starter.

Comatose, I'd say it's either the TFI, or the pickup inside the distributor.

PKRWUD · 06-26-2002, 05:02 PM

Agreed.

As shown, there are different examples of a hard start / no start condition. You need to be specific as to the symptoms, but since it's for a friend, i know that's tough. If the starter itself never seems to be experiencing any problems, then I agree with it being the TFI. But, if the starter dogs out when it gets hot, it could be a worn starter, bad cables, a weak battery, or any combination of the three.

Take care,
-Chris

Comatose · 06-26-2002, 05:55 PM

Thanks for the replies.

There are no problems with the starter or cables, it turns over fine, simply doesn't start. Is it possible to test the TFI? If yes, how? If not, how much are they?

Jeremiah

BTW--How can I change my user name??!

06-26-2002, 02:28 PM	#1
Comatose Registered Member Join Date: Oct 2001 Location: Goldendale, WA, USA Posts: 84	Starting Problems When Hot?!? Friends car: 86 Coupe, Police Package, stock, 5.0 w/auto, EFI The car starts fine first thing in the morning or when the weather is cooler, once it gets hot outside, or the car has been driven for awhile, it doesn't want to start after being shut off. Once the car sits for a couple hours it starts again. Sorry, this is how it's been described to me, I'm haven't experienced it first hand. Any suggestions would be appreciated, Thanks. Jeremiah Alexander __________________ Jeremiah 1986 Mustang GT K&N Filter, Removed Air Silencer, Black Magic Fan, 65mm Explorer TB, 110lph BBK Fuel Pump, F/M Force II Cat -Back, O/R h-pipe, U/D's Timing@14* 1986 Mustang LX SSP--new project car AOD, 3.27's, Dumps, 238k miles

06-26-2002, 02:54 PM	#2
Coolbreeze Registered Member Join Date: Oct 2000 Location: ~Columbus~GA~31909~ Posts: 156	Sounds like the TFI module is bad. __________________ Mike Blown~AOD'ed~331~ T-top~ 86GT Check out car on my page here ------ > ~~My 86GT T-top ~~

06-26-2002, 03:53 PM	#3
jerrys84 Registered Member Join Date: Feb 2002 Location: minnesota Posts: 129	"won't start"?? as in, turns over won't fire or won't turn over or??? more detail please.. __________________ 91 LX 'work in progress' previous stangs; lightly modded 84GT 81 2.3 converted to 302 auto

06-26-2002, 04:17 PM	#4
429mustang Registered Member Join Date: May 2001 Location: westerville, OH USA Posts: 618	My car does the same thing. I have an 86 GT w/93 H.O. motor, it turns over pretty fast when it's cool, but after I drive for a while or it's hot out it turns over real slow, but it starts. A few times it turned over so slow I didn't think it would start, but it did. I figured maybe it was the starter getting too hot, maybe a heat shield would help? Anyone else have any ideas? __________________ 1990 Notchback: BBK Ceramic Coated Full length headers, Dr. Gas 3"- 2 1/2" x-pipe, Flowmaster 40's/turndowns.

06-26-2002, 04:22 PM	#5
DRASTiK Registered Member Join Date: May 2001 Location: Yuma, AZ Posts: 536	429, it sounds like you need a hi torque starter. Comatose, I'd say it's either the TFI, or the pickup inside the distributor. __________________ Dave 88 GT - 13.4@106 on street tires (2.2 60ft) My Stang RHC member #75 My stang is FOR SALE!!

06-26-2002, 05:02 PM	#6
PKRWUD Junior Member Join Date: Mar 1999 Location: Ventura, California Posts: 8,981	Agreed. As shown, there are different examples of a hard start / no start condition. You need to be specific as to the symptoms, but since it's for a friend, i know that's tough. If the starter itself never seems to be experiencing any problems, then I agree with it being the TFI. But, if the starter dogs out when it gets hot, it could be a worn starter, bad cables, a weak battery, or any combination of the three. Take care, -Chris __________________ Webmaster: Rice Haters Club Jim Porter Racing Peckerwoods Pit Stop Support Your Local RED & WHITE!

06-26-2002, 05:55 PM	#7
Comatose Registered Member Join Date: Oct 2001 Location: Goldendale, WA, USA Posts: 84	Thanks for the replies. There are no problems with the starter or cables, it turns over fine, simply doesn't start. Is it possible to test the TFI? If yes, how? If not, how much are they? Jeremiah BTW--How can I change my user name??! __________________ Jeremiah 1986 Mustang GT K&N Filter, Removed Air Silencer, Black Magic Fan, 65mm Explorer TB, 110lph BBK Fuel Pump, F/M Force II Cat -Back, O/R h-pipe, U/D's Timing@14* 1986 Mustang LX SSP--new project car AOD, 3.27's, Dumps, 238k miles

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