I'm out of ideas, guys. (Truck runs like crap no matter what I do).

[jdyates]

Your truck has a MAF (Mass Air Flow Sensor)? Did I miss that somewhere?

Sits on the intake, right above the EGR vavle. Has a line that connects to the intake right under the back of the throttle body.

UPDATE TIME: Tested fuel pressure, solid 12psi at the connector behind the fuel filter. My dad suggested I test the front next to see if the filter is holding back pressure.

Now, I have a new idea. I know for a fact my TCC solenoid is going out in the ol' 700 (bear with me here), and the truck only seems to stumble and die when I punch it in OD (or lockup, I don't know). For example, I'll be cruising at 1,500rpm and get to lockup speed, she'll drop down to 1,250 or so, then when I punch it it dies.

NOW, could it be, that the solenoid is to the point that It's malfunctioning, sticking in lockup, and stalling the motor?

 

[ChrisAU]

Sits on the intake, right above the EGR vavle. Has a line that connects to the intake right under the back of the throttle body.

UPDATE TIME: Tested fuel pressure, solid 12psi at the connector behind the fuel filter. My dad suggested I test the front next to see if the filter is holding back pressure.

Now, I have a new idea. I know for a fact my TCC solenoid is going out in the ol' 700 (bear with me here), and the truck only seems to stumble and die when I punch it in OD (or lockup, I don't know). For example, I'll be cruising at 1,500rpm and get to lockup speed, she'll drop down to 1,250 or so, then when I punch it it dies.

NOW, could it be, that the solenoid is to the point that It's malfunctioning, sticking in lockup, and stalling the motor?

That's not a MAF, that's a MAP. Big difference.

 

[jdyates]

That's not a MAF, that's a MAP. Big difference.

Ahh I didn't know that. My bad.

 

[gmcyukondriver]

Yup. MAF = Mass Air Flow Sensor. I think those were only in 96+ trucks.

MAP = Manifold Air Pressure Sensor. Monitors the amount of vacuum.

 

[ChrisAU]

No biggie. Replace that solenoid if you think its going bad anyway.

 

[silverado13]

has anyone ever hear of a timing chain jumping a tooth on the gear?

 

[axisT6]

Yes. If they are stretched enough, they can jump.

 

[silverado13]

any time my truck decides it doesnt want to start, that always goes through my mind but compression tests kinda rule that out

 

[jdyates]

any time my truck decides it doesnt want to start, that always goes through my mind but compression tests kinda rule that out

Check your timing, if the chain stretched, I think it jumps around. I wanted to check that as well, my timing sits right at 0* and doesn't move at all so I know the chain is fine for now.

 

[Antonino]

Try changing the knock sensor. $30.