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4

Yes, it is an accurate statement. The first troubleshooting step I do when diagnosing any issue which is in response to trouble codes is to clear the code and see if it comes back. If it doesn't come back, the issue was a "fleeting" issue, meaning to me as not something to really worry about. Along those lines, considering your truck is relatively new, the ...


4

The cracked bell housing would not be preventing the flywheel from turning as an automatic transmission doesn't work that way. The engine is not physically coupled to the transmission from a driven aspect. The torque converter uses fluid sheering to do its thing. If the engine isn't running, there's nothing there. Something caused the cracked bell housing, ...


3

I'd agree with Paulster2 that you don't have enough coolant in the system. One thing I've found extremely helpful in getting cooling systems properly filled up is one of these Lisle 24610 Spill-Free Funnels. I think I first saw one in an EricTheCarGuy video: Basically, it let's you get the coolant level higher than any other part of the cooling system, ...


3

Along with what @Zaid said, which I agree with, there are two other aspects to worry about: Antilock Brake System (ABS) Traction control (I'm not sure your Sierra has this, but it bears mentioning) The problem with the ABS is, with that much of a difference, your ABS will believe there is a fault with the system and shut it down or might believe the ...


2

You need to check a couple of things. Ensure you have enough transmission fluid in your vehicle. If the fluid is up to par, one of two things could be going wrong (to my knowledge): The reverse band has gone out (less likely) The reverse solenoid has gone out (more likely) Is there a check engine light showing on the dash? Might not be, but you should ...


2

Since the vehicle is a rear-wheel drive, placing the larger wheels on the front would have the advantage of maintaining normal sized wheels on the driving axle. This means the drive-train is working at its intended rotation. Placing larger wheels on the driven axle would mean the engine would have to rev lower to produce the same speed. This is probably a ...


2

Something to watch out for Since you intend to buy second-hand, one thing to watch out for is the age of the tire. From personal experience in desert climate, standard tires usually don't last beyond 3-4 years. A premium tire might buy you an extra year. See this question to know how to tell the age of a tire. Putting on a different size A rule of thumb ...


2

There are numerous freeze plugs in a typical GM block. the good news is some are readily replaceable. There are two bad points though. First point, the ones that aren't easily viewable are a pain to get at, think about how to look at the back of the block in front of the transmission or how easy will the exhaust manifolds come off. Second PITA point is they ...


1

As explained here, lots of people add aftermarket Z71 stickers to their truck to artificially increase the value. If the truck truly is a Z71, it would be listed on the RPO ("regular production options") sticker, which I believe is in the glove box for the Sierra. The real Z71 package had the following (copied from the link): Z71 Off-Road suspension 46mm ...


1

Is the top of the door closing properly? if the top of the door is not compressing the seal sufficiently it will leak. You could, with the window down, gently bend the door top in towards the car a small amount to increase the compression on the sealing strip, but be careful - does not need much...


1

Listen to cranking the engine when cold. If uneven, compression is bad (unlikely, but you must rule it out before spending any more money). Check vacuum lines, especially the PCV valve hose and grommet. Replace the PCV valve itself. Replace the EGR valve. Once removed, spray carb. cleaner through the PCV and EGR ports in the intake manifold (they often clog)...


1

If you want a hand pinpointing the leak you could add some UV Dye to the radiator and get a UV light to illuminate it once the leak occurs and track it to its highest point. This is usually for small leaks, but it should work too for a large leak like yours that you don't want to confuse with other liquid sources. You may get confusing results if the leak is ...


1

Electrical issues are difficult to figure out without a lot of deadends. If you put YOUR seat in another truck and it worked fine, good. If your door switches operate somebody else's perfectly working seat, good. If your seat's good and your switches are good, I'd check the relays and fuses - the truck's old enough that any of this could be age...the system ...


1

GMC and Chevy trucks have a known problem with their front wheel bearings. The ABS sensor slides into the wheel bearing and is bolted on from the outside. This type of sensor is very sensitive to the gap between the sensor and the reluctor wheel inside the wheel bearing. Over time rust builds up between the bearing and sensor and will pull the sensor ...


1

More for other readers than the OP, but I found this thread by asking "New Water Pump Overheating". I've got a Chevy Blazer with the 4.3 V6, and right after replacing my water pump, I filled the radiator ('til it seemed it wouldn't take anymore coolant), cap'd it, and then started her. The temp climbed quickly and I sensed something was wrong when it ...


1

There is nothing wrong with grounding your battery to the bottom of the alternator, as that is where it is on most of these vehicles (may have come that way from the factory ... I believe my 91 Suburban was grounded there as well). The problem you encountered was there aren't enough grounds going to the body from the engine and wherever else to the body ...


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