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When my first OEM lift pump died I replaced it with another OEM part and destructively disassembled the original piece just to see what had gone wrong. The pump motor ran as it was supposed to but the pump didn't pump. The problem was the built in relief valve; the ball had been pushed through...

You might not find dye evidence at the evaporator drain. I would not rule out the evaporator coil until I'd had a look at it directly. The oil/dye mix is pretty sticky stuff and could be clinging to the evaporator coil fins without ever 'draining' off.

Yep, still have 'em. What's an email addy I can use for pics?

Disassemble and inspect the old pump before installing the replacement. You might learn why the first Fass failed and prevent a repeat failure of the new one.

Bump! Note the "motivated seller" in the original post :)

There should be a high pressure limit switch in this system. If the condenser can't get rid of the heat, the system's high side pressure could go high enough to disable the compressor. Anything that interferes with the condenser's ability to shed heat will be suspect. About 3/4 of the fins on...

You got it to move 1"? If you got it to move at all then you've already won the battle. Soak it with penetrant and drive it back where it came from. Then soak it again and drive it back the other way. Back and forth till all the rust in the bushing sleeve is broken down and you can use a drift...

Master cylinder piston must fully return to 'rest' position to uncover return port for hydraulic (brake) fluid so calipers/drums can relax. If your hydroboost is dirty or corrupted by repeated low/no hydraulic oil in ps system it may not be completely free moving and be preventing complete...

Ground fault-brake light energy finding a ground path through right side marker light circuit. Rear bulb holder or lamp assembly has lost its ground path.

A failing ball or roller bearing would explain both the overheat and excess ferrus material in the drain oil. Likely a countershaft bearing. Towing a load on the highway would just exacerbate the situation (5th speed drives through the countershaft). The Cummins makes so much noise you probably...

Replaced the OEM wheels on my '01. 5 2500. 4 original aluminum wheels available. They are straight with the rash you'd expect for 180,000 miles. With center caps. Can send pics if you're interested. Motivated seller!

Are you saying that the brake fluid is :eek: 12 Years Old?!?! :eek: OMG, that stuff is half water by now. Purge, purge and purge again. There may well be enough rust in the piston bore to prevent free travel of the piston in the sticking caliper. A caliper rebuild may also be in order to...

VP pulses? Interesting..... I remote mounted the sender for my ISSPRO FP gauge with a snubber just like Geno's recommended. It made perfect sense to isolate the sender from engine vibration and pump pressure feedback. Now I'm beginning to wonder, does this 'hammer effect' have anything to do...

OK, so I just eyeballed the hose routing in my '01. The pump has one pressure output line and two return lines. The pressure output is routed to the brake booster and from there to the steering box. I guess it stands to reason that the brakes come first, they being, if only slightly, more...

Duh! Yes, I suppose it would. (laughing at myself) Well, if a new box has not changed anything maybe the pump's hydraulic pressure isn't getting to the box where it can be put to use. I don't know the hose routing or pressure schematic by heart but I'll be looking at it this evening...

The more I reflect on this the more I come to suspect the steering box's hydro assist. As noted, the brake boost appears normal so I infer normal pump output pressure/volume. The point of rolling the vehicle without steering assist is to keep the load bearing elements in the mix and under normal...

As noted, vacuum in used only for HVAC and front axle drive engage/disengage. The relationship between vacuum and power steering is that the ps pump is piggybacked on the vacuum pump. They are mechanically driven from engine front gearcase-they either drive or they don't. You say the ps pump...

Furthermore these boxes only achieve zero lash at their center point. Either side of center the box will have lash and the vehicle will have play in the steering. The box MUST be centered carefully and the vehicle trimmed to suit the box's actual center position if you are to enjoy precise...

Go under the truck and tap on the driveshaft with something hard but lightweight, like a stout screwdriver. Same sound? Under high torque universal joint(s) will 'snap' into place like this when they're old and dried out and ring the driveshaft.