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My luck strikes again! Looks like the Tcase went out/chain has stretched too far. The 4x4 has worked every day up to this point. Today as I drove through the second pasture on my daily run I went to climb a sand hill and the truck started bouncing, it was still in 4x4, I back down the hill put...

Is Ac delco 217435 the correct iac? Rock auto says I need an adapter harness.

On the inside of the intake? That's convenient lol. What about the O2 sensor? Clean? Replace? Or get the other codes first and see of it corrects its self?

Teds sells military surplus used engines, sometimes you can save money by doing a quick freshening of those, other tines it cost more than a new optimizer by the time its all tallied up. Replace the oil cooler lines if they are wet with oil, you can reseal the 4x4 oil filter adapter at the same...

Also where is the ops located?

So do I clean or change the IAC? Where exactly is it? Just change the O2 sensor or is the heating part seperate? I'll take an IR to the t stat housing. Is 190 too cold? I thought 160ish was the temp goal for lock up.

New alternator fixed my voltage. Cleaned the maf and swear I gained 50hp lol. Sprayed a can of sea foam through the intake. Found a small crack in the upper intake, sprayed it with ether and the engine didn't rev but still will need replaced soon. The engine runs around 190 according to the...

Right, I am the same way.

Obd2tool Or this one and save some money by just getting the gm option since I dont plan to own anything else.

Buyobd2 This is the one I found looks a little more expensive but not terrible to diagnose the range of yrs.

Heading in for an alternator, it locked up at start up this AM. Hoping that gets the voltage fixed. Thinking maybe the ecm temp sensor could have failed causing the engine to run rich and trip the O2 sensor and kick out the tcc.

Here are the codes, I also have low voltage now, battery tests good though

What size of hose?

After the lml is gone I will either buy a crew cab 6.5 or a 6.0 so I'd say the cko would come in handy.

Like I said earlier. I need a scanner

If I drove by foot the torque converter still only locked on down hill and unlocked as soon as I was on flatish ground. Doesn't feel right for a 4l80 and 4.10's with a big block to be running without the TC locked 90% of the time. We had a 5mph head wind. The issue didn't start until the cel...

Thanks, I'll work on that tonight.

Recent parts and tires included I have about $1300 in the truck. I tried posting a video but it got to 100% and said it wasn't supported format or something.