dies after 10 minutes

[everett7]

i have a 1995 chevy blazer it runns high for about 10 to 15 minutes starts running realy rough and dies i think somthing is heating up the brain so last time it did it i changed the brain and it re started and run for a nother 10 - 15 minutes and died what could be killing the brain

[MT-2500]

Originally Posted by everett7

i have a 1995 chevy blazer it runns high for about 10 to 15 minutes starts running realy rough and dies i think somthing is heating up the brain so last time it did it i changed the brain and it re started and run for a nother 10 - 15 minutes and died what could be killing the brain

What is running high?
What engine and engine code and computer and dist setup?
Flat top or old style dist cap?
Computer on fender or inside cab?
What brain did you change?
New or used or rebuilt?

Does it do it all of the time?
Have you checked for lose of fuel pressure or los of spark when it does it?

[everett7]

Originally Posted by MT-2500

What is running high?
What engine and engine code and computer and dist setup?
Flat top or old style dist cap?
Computer on fender or inside cab?
What brain did you change?
New or used or rebuilt?

Does it do it all of the time?
Have you checked for lose of fuel pressure or los of spark when it does it?

it hasengine code wwith spider injector and brain is on fendor the motor is used but i changed timming chain oil , pump and seals it is loosing fire when it dies ive got to coils with the spark control i guess ind it does it to both

[everett7]

Originally Posted by everett7

it hasengine code wwith spider injector and brain is on fendor the motor is used but i changed timming chain oil , pump and seals it is loosing fire when it dies ive got to coils with the spark control i guess ind it does it to both

yes it does it all the time the fuel pressure does not go down i just put in new fuel pump and filter

[MT-2500]

Originally Posted by everett7

yes it does it all the time the fuel pressure does not go down i just put in new fuel pump and filter

What brain or part did you change?

If old style dist check ign module and ign if you are losing spark.

[everett7]

Originally Posted by MT-2500

What brain or part did you change?

If old style dist check ign module and ign if you are losing spark.

i changed the brain under the hood i have to one that come with the blazer and one that come with the motor why is the brain heatin up and killing my fire

[ctwright]

Could be losing compression after the engine warms up. Do a compression check on your cylinders and get back with the results. Did you already check for sure that u are loosing fire?

[everett7]

Originally Posted by ctwright

Could be losing compression after the engine warms up. Do a compression check on your cylinders and get back with the results.

ive done a compressin test and they are all over 150

[everett7]

Originally Posted by everett7

ive done a compressin test and they are all over 150

yes i have a sprk tester thaplug in the spark plug wire and then the other end plug onto the spark plug

[ctwright]

When you keep talking about brain are you talking about your ignition module or your ecm?

[everett7]

Originally Posted by ctwright

When you keep talking about brain are you talking about your ignition module or your ecm?

yes

[ctwright]

Originally Posted by everett7

yes

Yes to which one???????

[everett7]

Originally Posted by ctwright

Yes to which one???????

ecm on top of puck tank on passenger fender

[ctwright]

Originally Posted by everett7

ecm on top of puck tank on passenger fender

You need to check your ignition module it should be beneath your coil packs. And what is a puck tank????????

[everett7]

Originally Posted by ctwright

You need to check your ignition module it should be beneath your coil packs. And what is a puck tank????????

radiator over flow tank i have a disttibutor it is next to the coil i have one of my blazer and one of my new motor and when it died the first time i thought that might be it and tried that it did not work