r/GMT400

That is the question. My 97 Yukon is leaking oil externally from the head gaskets, down the sides of the engine block. So far it's not getting down into the pan, so no dino flavored milkshake is happening. As for oil leaking into the combustion chambers, I don't know yet. I plan to pull spark plugs and see this weekend. It just rolled over to 200K original miles, and like many of us here I've down a lot of work over the years to keep it running and not rotting away.

So what is y'all's experience with head gasket jobs on a 30 year old high mileage Vortec? If all else seems good is it worth it, or would replacing the engine be a better move? If I am replacing the engine, I would keeping it stock with either a reman'd or new Vortec.

Where is everyone able to find parts now a days? I’m in need of a vapor canister purge valve and a canister purge valve. None of the local big box part stores have them and finding them online is only coming up with eBay and parts geek. Anyone have any luck with the eBay parts? Also probably need a new charcoal canister, was changing out my ignition coil and ignition control module and found vacuum lines broke so when I tracked them down I found the purge side going to the tank and the tank side going to the purge.

Yall I’ve been searching marketplace for months in many different parts of the country and I’ve been able to find less than 5 decent looking manual trucks, let alone with the specific cab/bed configuration I want.

I’m not super picky, I don’t care about the color, I don’t care if it’s dirty I just want it to not be rusty, less than 200k miles and a long bed.

Mostly a rant lol but any advice would be greatly appreciated

So my transmission on my ‘93 Cheyenne won’t go out of third when driving. I also have to manually shift it into first and then bring it down into drive or it jumps into third from idle. A rebuild is gonna cost nearly 2 grand which is almost my whole paycheck.

Ok so in theory, would it be safe to drive if I stayed the correct speed for third gear? (35-45mph). I don’t need it to go on a highway, it’s more so for backroads around where I live.

I feel l like if this is the case then more people would do it, and I’ve never heard of someone doing this, so I thought I’d ask.

Drove my truck 180 miles yesterday, at one point I noticed the pressure needle bouncing slightly and then when I got up to temp and would stop at a light it would drop to complete zero in gear and the truck sound like it wanted to bog out almost. Any ideas? FYI oils good level wise

Been having this issue for a few weeks on my ‘98 silverado c1500, automatic truck. Go to turn the truck on in the morning and I am getting power to dash, lights, hear fuel pump priming up, etc. but there is zero crank when I turn the key over.

I had an old battery when this first happened, so I took it out and checked it - also charged it up, reinstalled and the truck turned over and started fine. Ran good for a few days and the issue came up again. This time I popped the hood, wiggled the cables a bit, smacked the alternator a few times, and sure enough it fired up….Decided I would try getting a new battery.

So I got a new battery, cleaned up the terminal ends, got new terminal bolts, and installed new battery. Truck turned over fine and ran good for a week until this morning, again it is just no crank but all power, etc.

Getting tired of the unreliability…. What should I do to accurately troubleshoot this?

I have been reading it’s got to be either; alternator, starter, starter solenoid, or the neutral safety switch.

I saw one guy mention if you have power + hear the fuel pump going, its more likely the neutral switch or starter/solenoid?

Has anyone ever built an overland style rig out of a pickup in one of these body styles? Iv been kicking around the idea but havent really seen a whole lot

I know people hate on 4.3s but I got a 93 c1500 thathas a 4.3 and I love it but I would like to build it up some and put a cam in it is there anywhere that sells built 4.3 crate engines or will I have to do it myself?

I've posted a handful of times on here about the same truck having the same damn issues. It's an '88 C1500 with the 5.7.... THE CULPRIT?!? A bad fuel pressure regulator diaphragm. Bought the kit and opened up her topside, lo and behold! Brown sticky stuff coating everything!

Any ideas for fixing a leaky AC compressor? Anyone got one that don't leak?