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I have a 1998 K2500 Silverado I use strictly as a hunting truck which i bought used a few years ago, Yesterday I hauled it down south to do some predator hunting.

After unloading it and...

I have a 1998 K2500 Silverado I use strictly as a hunting truck which i bought used a few years ago, Yesterday I hauled it down south to do some predator hunting.

After unloading it and starting...

No suggestions....

I have a 98 with the 5.7 vortec and it has gotten very hard to start.

I put a scanner on it and there are not DTC's listed.

When it has set for a few days I have to crank on it for anywhere...

The three wires are in an opaque tube that come out of the top of the differential right behind the actuator (the tube is on the drivers side of the actuator).. On the end of that wire is a white...

On mine there are two wires that come from the top part of the engine and go to the actuator and they are intact, including the connector, no problems here.

However right in front of the...

It's working as designed then. The wheel with the least traction is the one that turns, while the other just set there.

I thought it lock all 4 wheels together, but I guess I need a locker to do...

I does go into 4 wheel low, but the wheels are not turning together. I use the truck for hunting and one of the ranches has a lot of wash outs in the road. Last weekend I tried to cross a small wash...

This may be a stupid question, but when in 4L, I am under the impression that the power to the front axle is divided equally between the front tires and that they should both turn at the same speed....

My 94 k2500 has a problem, caused by me.

It will not lock the axle in 4low and the light does not come on. When I shift the floor lever in goes into 4 low, but does not lock.

On mine there are...

Found the problem and all is well now. It turned out to be a pin hole in the rubber hose inside the tank. With all the sensors connected it kept enough back pressure on the fuel line that it dumped...

No, I haven't tried that yet but I will check it in the morning.

Since it will idle whether cold or hot if one of the sensors is unplugged I am thinking it won't be that but i never hurts to...

Tried unplugging the sensor one at a time all with the same results. Replace the fuel pump relay and checked the fuse, no difference.

Rechecked the codes and the ECM saw the unplugging of the...

THE SAGA CONTINUES........ Replaced the IAC last night....no change. Removed the wire to the coolant sensor next to the thermostat this morning and started the engine. It ran fine for a couple of...

Cleaned the IAC and reinstalled. Started and no difference. Replaced the IAC still no difference. Removed the vacuum line from the map sensor and the engine ran a bit rougher, replace the line and...

I have a 94 K2500 with the 5.7TBI engine that I use as a dedicated hunting truck. While out chasing some yotes the other night it developed a rather strange problem.

It was running as it always...