94 tbi 350

[98k15]

Just bought a 94 k3500 srw 350, nv4500 truck, truck revs fine with the clutch in or out of gear but going down the road if you get past half throttle it sputters, doesn't want to pull hills, any ideas?

 

[jkeaton]

What have you checked yourself so far? How many miles? Has any maintenance been done? Pulled the plugs? Checked the air filter? Checked for vacuum leaks? Could be anything. Check a few things first.

 

[98k15]

Haven't had time to mess with it, bought it saturday, doing to start with plugs wires, cap and rotor, it will also die when you first start it if you don't give it done fuel

 

[Rock Hard Concrete]

Air filter, fuel filter, check timing, check 02 sensor, and all previous suggestions.

 

[J_lope82]

Change your fuel filter first

 

[jkeaton]

Haven't had time to mess with it, bought it saturday, doing to start with plugs wires, cap and rotor, it will also die when you first start it if you don't give it done fuel

Basic maintenance first.

 

[98k15]

Did plugs, wires, cap and rotor tonight, forgot my line wrenches at work today so I didn't do fuel filter, will do it tomorrow, runs better but still is doing the same thing, the plugs had almost no electrode left, appeared to be original plugs, truck has 219k miles.

 

[DerekTheGreat]

Pics of truck? Is it a regular cab?

 

[98k15]

Did fuel filter, still no luck.

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[98k15]

I've done cap, rotor, plugs, wires, fuel and air fliters, checked for vacuum leaks, also did the 2 wire coolant temp sensor and fuel pressure regulator, truck runs fine when it's cold but rich when it's warm, which makes it idle rough and miss bad low rpms when warm now, it runs like the ecm thinks it's cold all the time.