View Full Version : WTF!!
I thought I had my car fixed but it is not. The car will not start when hot, it tries but no juice, when it cools down it starts fine. I replaced the starter and cleaned all battery terminals good. Then I thought it was the battery so I replaced it. Still, no dice, alt. is charging fine, timing is at the factory specs. Please help!!!:angry:
Blacksheep
03-30-2009, 04:59 PM
do u have long tubes on the car? if so, the starter might be getting to hot. If u do, then try a starter blanket, is the selonid (sp) good, try changing that, they are only like 5 bucks
blown347notch
03-30-2009, 05:05 PM
sounds like a ground has high resistance when it gets hot. ohm your ground cables and see if they are less than .5 ohms.
do u have long tubes on the car? if so, the starter might be getting to hot. If u do, then try a starter blanket, is the selonid (sp) good, try changing that, they are only like 5 bucks
Stock headers, can the starter solenoid cause this
sounds like a ground has high resistance when it gets hot. ohm your ground cables and see if they are less than .5 ohms.
Can u tell me where all the grounds to check are located other than battery and body, thanks
Badass1993
03-30-2009, 05:32 PM
put a relay on the exciter wire......we used to have the same problems,and a relay seemed to cure the problem
put a relay on the exciter wire......we used to have the same problems,and a relay seemed to cure the problem
uh, what is that wire and where ,thanks
puttputt
03-30-2009, 05:53 PM
It could be the fuel pump. Is it the original one? When they get old and worn out they stop working when they get hot. Just a suggestion.
It could be the fuel pump. Is it the original one? When they get old and worn out they stop working when they get hot. Just a suggestion.
I dont think so, because you can still roll start the car
blown347notch
03-30-2009, 05:56 PM
Can u tell me where all the grounds to check are located other than battery and body, thanks
from battery to timing cover and battery to fender apron. and back of block to firewall.
88mouse
03-30-2009, 05:59 PM
Is it the stock TFI?
blown347notch
03-30-2009, 06:04 PM
will the engine not turn over when its hot or when its hot it will turn over but not start up?
Blacksheep
03-30-2009, 06:17 PM
Stock headers, can the starter solenoid cause this
if it is getting to hot then yes, i have seen it do the same thing you are saying. Run the car, turn it off when it gets to temp, and when you try and start it back up, and it wont fire, put your hand on the solenoid and see if its hot, if it is, then that is atleast one of your problems, those should never get hot.
bonesgt
03-30-2009, 06:23 PM
Is it the stock TFI?
We are thinking the same thing here.:thumbsup1:
cammincoupe
03-30-2009, 06:28 PM
We are thinking the same thing here.:thumbsup1:
i belive i said go get that tfi checked when u first posted ur problem those moduls can cause great head aches.
bonesgt
03-30-2009, 06:30 PM
i belive i said go get that tfi checked when u first posted ur problem those moduls can cause great head aches.
Oh yea!!! I know first hand :angry::angry:
cammincoupe
03-30-2009, 06:31 PM
yea bc when u bring them to get tested they only test 2 or 3 times witch isnt enough to really get them hot if there going bad i know i had one that they had to test about 15 times befor it showed bad
88mouse
03-30-2009, 06:33 PM
We are thinking the same thing here.:thumbsup1:
I have seen them cause some weird problems before.
Is it the stock TFI?
it is the stock tfi, so i should just try a new one
blown347notch
03-30-2009, 06:42 PM
will the engine not turn over when its hot or when its hot it will turn over but not start up?
:ponder:
will the engine not turn over when its hot or when its hot it will turn over but not start up?
it will try to turn over but acts like it has weak battery, the wierd thing is you can jump start it
blown347notch
03-30-2009, 06:44 PM
its not the tfi then. its a ground problem.
blown347notch
03-30-2009, 06:45 PM
when you jump it off with jumper cables it gets a good ground through the other vehicle. or if you roll it off it doesn't pull any amperage to the starter.
its not the tfi then. its a ground problem.
But every morning or when the engine is cool it starts great
cammincoupe
03-30-2009, 06:54 PM
But every morning or when the engine is cool it starts great
check the ground from the batt to the timing cover
blown347notch
03-30-2009, 06:54 PM
when a wire is heated its resistance increases meaning that electricty doesn't flow through it as good.
blown347notch
03-30-2009, 06:58 PM
pm me if you need my #
89fiveohman
03-30-2009, 08:08 PM
if you have a good battery it will actualy charge itself overnight believe it or not, now i did say a good battery, i think you said you bought a new battery, i would definitly check and make sure there is a ground from the chassis to motor.
Stable
03-30-2009, 08:33 PM
Is the battery in the stock location?
slonomo
03-30-2009, 08:40 PM
put a relay on the exciter wire......we used to have the same problems,and a relay seemed to cure the problem
x2
if you have a good battery it will actualy charge itself overnight believe it or not, now i did say a good battery, i think you said you bought a new battery, i would definitly check and make sure there is a ground from the chassis to motor.
this is what mine does, let it cool and back to life
x2
what is this wire and where is it located? Also can u tell me what kind of relay and how thanks?
blown347notch
03-30-2009, 09:13 PM
don't go adding relays to your car. find the ground and fix it:thumbsup1:
cammincoupe
03-30-2009, 09:25 PM
don't go adding relays to your car. find the ground and fix it:thumbsup1:
dont add more wires for no reason check all the grounds coming off the neg terminal off your battery i have seen them look good at the ends and then be all nasty in side the cable itself
blown347notch
03-30-2009, 09:31 PM
x2:thumbsup1:
dont add more wires for no reason check all the grounds coming off the neg terminal off your battery i have seen them look good at the ends and then be all nasty in side the cable itself
I will check all wires and grounds,but would it be the grounds if it starts when cool or the whole ground wire be old and heating up.
blown347notch
03-30-2009, 09:43 PM
first check the cable ends make sure they are clean and tight. you will need a multimeter to measure the resistance of the ground wires.
mustanggt8587
03-30-2009, 10:28 PM
I had this same issue on two of my mustangs and the ignition module on the distributor was the problem both times. Good luck!
I thought I had my car fixed but it is not. The car will not start when hot, it tries but no juice, when it cools down it starts fine. I replaced the starter and cleaned all battery terminals good. Then I thought it was the battery so I replaced it. Still, no dice, alt. is charging fine, timing is at the factory specs. Please help!!!:angry:
I finally figured this thing out, I dont know what it is called but the little connector that is inline with the tfi, it was hanging there and getting hot, so I taped it back up where it was supposed to be and I havent had the problem again. anyone know what this part is called, maybe the eec??
BDASPNY
04-18-2009, 11:09 PM
Oh yea!!! I know first hand :angry::angry:
believe me i know all about that crap. the tfi module was a crap design!!:angry:
darren
04-18-2009, 11:46 PM
I finally figured this thing out, I dont know what it is called but the little connector that is inline with the tfi, it was hanging there and getting hot, so I taped it back up where it was supposed to be and I havent had the problem again. anyone know what this part is called, maybe the eec??
Sounds like you are describing the timing spout harness, which is supposed to be hanging loose and would in no way be affected by heat. Worst case scenario your timing would move around a little if this was damaged, and it if did it would either be correct per your computer, or default to your base timing which is probably around 10-15deg btdc. If the problem is gone that's great, but if you are talking about the timing spout harness (2 wires with a small plastic plug on the end) I don't see how that could have been your problem.
Sounds like you are describing the timing spout harness, which is supposed to be hanging loose and would in no way be affected by heat. Worst case scenario your timing would move around a little if this was damaged, and it if did it would either be correct per your computer, or default to your base timing which is probably around 10-15deg btdc. If the problem is gone that's great, but if you are talking about the timing spout harness (2 wires with a small plastic plug on the end) I don't see how that could have been your problem.
Well maybe it was the wires itself, because there was no loom or anything,could it have been the wires going to the TFI?
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