Hello,
I have an automatic 2000 ZR-2 Blazer. Its got high miles on it but has been really reliable up until now. I was driving down the highway and all of a sudden my warning lights all started spiking. All of a sudden the motor started cutting out randomly and i started losing speed. I thought at first it was my alternator because the battery light appeared a few times but it seems to fine, so i had the truck towed back to my house. I started it up and it ran fine so i decided to drive it to school and the same thing happened on the highway. It appears that this problem only happens once the vehicle has been warmed up and driven.

Anybody have any ideas?

 

I replaced my distributor with cap and rotor, plugs and wires. It started out a lot better but i'm still getting a camshaft sensor A code from my scanner. The truck accelerates somewhat but when i put the gas to the floor it still has a tendency to cut out. I retimed the distributor after i put it in and its right on the money. The distributor did come with a new sensor. Anyone have any ideas?

 

I have another update, i replaced the fuel filter and some of the fuel line because i thought i wasn't getting enough fuel, its still doing the same thing. I'm getting 3 oxygen sensor codes for low voltage, even though i checked the fuse and replaced one of the 02 sensors and it still throws a low voltage code. Does ANYONE have ANY IDEAS PLEASE???

 

A low voltage reference code could be a result of poor grounds. Have you checked over all of the grounds to the PCM, engine, and body? This would be the first place I would start.