ignition control module

[WillHe3rd]

Okay everyone, the last time my 87 blazer wouldn't start, you all pointed me in the direction of the ignition control module. That was almost 2 years ago and I've been through 3 since then. In the past, every time it failed it was running fine, turned it off and it wouldn't start. This time i was going down the highway at 65mph and with out warning the blaze died. Now the engine cranks but wont fire. Should I take a chance and swap the ICM first?

 

[Col_Sanders]

Are you putting the dielectric grease on the bottom of the ignition module before you install it?

 

[George_Pimpdaddy]

u need to use the dielectric grease or they will fail like you have said.

 

[Metrodps]

Are you getting fuel? That is exactly what mine did when fuel pump died.

 

[Col_Sanders]

Ignition module can also stop you from getting fuel. If you can hear the pump kick on when you turn the key on, you know thats good.

 

[Metrodps]

If you can hear the pump kick on when you turn the key on, you know thats good.

Thanks I forgot to say that.

 

[WillHe3rd]

I am using the grease. I can hear the fuel pump come on. I think Im going to spend the 30 bucks on the ICM so I can at least rule it out.

 

[Col_Sanders]

Get it tested. They can test them at Advanced or Auto Zone. Then if it fails either buy 1 there or go buy one from GM. I've had 2 of the cheapo parts store ones fail in 70k miles. Some places have lifetime warranties on them. Might not be a bad idea to have one on hand as a spare.