Car not starting when hot,, can anyone help????
#1
Car not starting when hot,, can anyone help????
within the last week,,,,After driveing in the hot sun and my temp guage gets to about half and if i shut off the car and then try to restart it it will barley turn over once. But then if i leave it for a day or a good time like 8or so hrs it turns over perfect like theres nothing wrong.
I checked my volts and it looks like my alt. is chargeing when the car is warm (havent tryed testing it when the car was hot). I know its not the batt cause i tryed my brand new one from the saturn and it did the same thing that day. And as you know my volts guage has a mind of its own, so i cant go by what that says. I had my starter rebuilt about 3months ago but i suspect its getting too hot from my headers but ive had my headers sence last year and never had this problem.
any ideas???
I checked my volts and it looks like my alt. is chargeing when the car is warm (havent tryed testing it when the car was hot). I know its not the batt cause i tryed my brand new one from the saturn and it did the same thing that day. And as you know my volts guage has a mind of its own, so i cant go by what that says. I had my starter rebuilt about 3months ago but i suspect its getting too hot from my headers but ive had my headers sence last year and never had this problem.
any ideas???
#4
Well, does it just crank and crank and crank? Or does it not crank at all?
If it cranks and cranks and cranks, its not the starter. If it doesn't crank at all, sounds like your starter is underpowered and cant spin fast enough to keep up with a warm engine that wants to fire on every cylinder.
If it cranks and cranks and cranks, its not the starter. If it doesn't crank at all, sounds like your starter is underpowered and cant spin fast enough to keep up with a warm engine that wants to fire on every cylinder.
#6
They call it heat soak. But all a starter motor is is some metal, copper wire, and a few other things. Nothing really 'heat sensative.'
It's the issue with the factory starter being to weak. It has a hard time turning the engine unless conditions are ideal. When the engine gets hot, it's easier to get off a complete combustion and the starter can't generate enough cranking power to overcome the spark lighting BTDC. The cylinder pressues is great enough to turn the engine against the starter's torque, or lack thereof. I think the actual heat soak part comes from when the starter heats up, it loses cranking power. It really becomes a problem when using more compression.
That's what i've come to learn. I now have a CVR mini starter on my Caprice and it turns that over under ANY condition.
It's the issue with the factory starter being to weak. It has a hard time turning the engine unless conditions are ideal. When the engine gets hot, it's easier to get off a complete combustion and the starter can't generate enough cranking power to overcome the spark lighting BTDC. The cylinder pressues is great enough to turn the engine against the starter's torque, or lack thereof. I think the actual heat soak part comes from when the starter heats up, it loses cranking power. It really becomes a problem when using more compression.
That's what i've come to learn. I now have a CVR mini starter on my Caprice and it turns that over under ANY condition.
Last edited by Stekman; 07-04-2004 at 12:02 PM.
#10
Originally posted by Stekman
They call it heat soak. But all a starter motor is is some metal, copper wire, and a few other things. Nothing really 'heat sensative.'
They call it heat soak. But all a starter motor is is some metal, copper wire, and a few other things. Nothing really 'heat sensative.'
Heat soak yep,that's what it is. What happens is all that copper and steel gets hot and swells-up (expands)inside so the armature can't turn freely,so it boggs down. It is caused from heat and vibration and everything starts to get loose inside. A new starter will solve your problem,and while your replacing it throw on a heat sheild.
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