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Another common problem : the blower motor quits working. If you jiggle the switch it might come on momentarily. What's happening is the blower motor itself is starting to fail, or there's debris in it, or two many coffees have been spilled in the vents andthe motor is pulling too many amps. The...

Grounds: more than once, I've run into trucks with strange u codes, that is, a fault in the CAN BUS. If you're running in areas that have lots of road salt, its worse. Take off all grounds, grind paint off of frame or body, smear on some grease, and tighten well. The frame and cab grounds didn't...

Battery clamps: thick solid brass, including threaded post. Avoid the temptation to crank down on them, or stud stretches and soon becomes useless. Just snug them up, and they'll last forever. If you're in there cleaning everything, throw clamps in hot water. All corrosion comes off in a...

Batteries: new trucks come with exide. They aren't very good. Warranty is a year, have them load tested before warranty is up, and chances are one will be flakey. Boom, two new batteries.

You can email them to me or post them here, either is fine.

Have you had a chance to check shaft play, both in and out and side to side? If you can get a hand on it, can you get the VNT mechanism to move?

Quite a few of them on the road right now look like that, but no one ever bothers to take the CAC off to clean everything. If you see the temp gauge starting to rise over it's normal resting point and you're not pulling a hill in high ambient temps, then something is wrong and it needs to be...

I'm going to have to google that, because i don't know if I've ever seen one.

That's a good question. I've actually heard that too, but it's always in passing, like an urban legend. In this case, we would not be able to do anything with it, as it's going to be a function of the Allison ecu. We can get in there with Allison software, but reprogramming lies in their...

I have an older sister. She knows how to drive a stick shift. That's pretty much where her automotive knowledge ends, though. I think they are very good trucks. I'm not sure if they're even making large cabovers right now, if they are I haven't seen any. The little NPRs are hard to beat at...

Golden rule, I suppose. The basic architecture of these engines has been around for a long, long time, and they're solid. I'll have to respect those that designed the thing and wrote the book. Now, for practical real world solutions, you have to fully immerse yourself in it for a while, and...

You're welcome! One might say I'm biased, but I think these things are put together relatively well. The trick is to identify and address the shortcomings before they become real problems. The dealers will have all the information that I have, but generally speaking most dealers are dealers...

Spongebox1, You'd mentioned one of your truck runs hot. I'm attaching some pics to show how a clean radiator is misleading on these. To really clean it well, unbolt the mounting brackets for the condenser, swing it out of the way with the hoses still attached (removing brackets as necessary)...

I can't recall seeing one of those bolts without a cross, and that con.cerns me. Kind of a lot

The tab touching the line isn't critical, but I don't trust it if it looks like its been into before. You can also put dye in the fuel, run it for a while, then pull the valve cover and look at the line with a blacklight. Oil wont spray everywhere, but id put cardboard on either side to avoid a...

A clogged air filter will make oil pull out of that canister. Also black smoke and low power.

Apparently the fella stopped just off camera but they could see him take plates off if his truck. Then he ran it through the fence. All second hand info at this point, but there's access in and out of these places from all sides.acres of industrial complexes. Im sure they'll catch him/them, but...

I just heard that several dozen Dpf / scr systems were stolen in eastern VA in the last week. A mack dealer in Richmond got cats and wheels stolen off of like 37 trucks, with other thefts in Petersburg, colonial heights, and a huge pile in the seven cities.

If you change fuel filters and it doesn't seem to want to prime, don't pressurize the tank with compressed air. There's a risk of blowing the shaft seal out of the fuel pump. This will fill the crankcase with fuel and blow up the motor, if it ever starts. Just refill all the filters and start...

Fuel filter heaters are optional equipment, and they should be used to prevent fuel gelling. The pretreatment of fuel with antigel isn't recommended because many of these products have water remover (often alcohol) added to them.