Hey Vortec Guys! / Sierra pickup / Suburban / Yukon etc - Finally has Index!

tennesseewj

Observer
For what it's worth, you are overpaying for parts. Felpro gaskets, 2 knock sensors, and wires should be ~$175

View attachment 377959

Speaking of parts, I have a set of AC Delco knock sensors & wire harnesses as well as a Federal Mogul intake manifold gasket set that I purchased from GM Parts Direct & Rock Auto about a year ago. I opened the boxes to check the order but they are otherwise unused. Since I no longer need them I'd be willing to let them go and could probably save someone a couple pennies.

I also have the transmission filter & gasket kit for a 4L60E.

I was going to do these jobs on my 2003 Silverado but ended up selling the truck in order to get a 2007 crew cab version.
 

rayra

Expedition Leader
Kojack I'd say your #7 coil is dead / dying. That's why I suggested just simply swapping #5 adn #7, to see if yoru error code reports switch to squawking about #5 instead, thus confirming the trouble is the coil itself. It's a free way to confirm the problem and it doesn't take very long to do.
 
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kojackJKU

Autism Family Travellers!
Ok, gotcha. Check back after the weekend. I am going to dive into it then. Its friggin cold here to be messing with it. Are the wires long enough to just swap them around leaving the coils in place?
 

Storz

Explorer
And two weeks into ownership my 4L65E is dead, having a friend who is a trans specialist rebuild it.
 

Storz

Explorer
Welcome to the rebuilt club. Nice escalade btw!

Thanks, I knew buying it that at some point it would need a trans rebuild just wasn't thinking quite so soon. The PO had it replaced at a dealership in 2011, but I guess it was time again. Doing it right this time though with a "Beast" sunshell, TransGo HD kit etc
 

kojackJKU

Autism Family Travellers!
I have a shift kit in mine....I use mine for plowing but I am very gentle on it.....well, I try to be anyways!
 

rayra

Expedition Leader
Ok, gotcha. Check back after the weekend. I am going to dive into it then. Its friggin cold here to be messing with it. Are the wires long enough to just swap them around leaving the coils in place?

No they are not. They're barely long enough for their intended locations. It's really only a few bolts to swap them and they are easy to get to.
 

rayra

Expedition Leader
Busted out the front end work on the Sub today.

Swapped in the new / replacement bump stops in the front suspension. Unfortunately the parts I ordered were the 'stock' beehive design and not 'Z-71' type. They were really inexpensive at RockAuto, not sure I'll tolerate the sticker shock on the 'correct' parts from the dealer enough to bother switching them again. The install was fairly easy, the fronts are just pressed into a metal cup with four flanges that grip the piece. Easy enough to pry out the old one and work the new one in.

frontsuspensiontweaks02.jpg



Then I pulled out my budget shocks to install the shock boots I'd neglected to order in the first place. A little fighting the gas shocks was all that took.

Then it was on to the inner tie rod 'armor'. Again a budget choice. The stock inner tie rods are ridiculously spindly and somewhat exposed frontally. They're ~1/2" in diameter.

frontsuspensiontweaks01.jpg



There are a few much more robust offerings, but they 5-10x as much as these sleeves. And given the sort of slow driving I do off-road anymore, I think they're a decent improvement and value.
These sleeves basically replace the jam nut that locks the outer tie rod in place. A clever solution.

frontsuspensiontweaks03.jpg



The instructional video advises some care in removing the tie rod assembly, then measuring the overall length and replicating that after you disassemble things and add the sleeves. You won't get accurate enough to not require a new alignment, but you will get close enough to drive a bit without chewing up your tires. With other work and torsion adjustments, I fully plan(ned) on getting a fresh alignment before the week is out.

I did however run into one particular issue, which might be related to my torsion key mod and adjustments. The tie rod assembly passes under the sway bar. At full droop and even when jacking up on the suspension at the steerign knuckle, I didn't have straight-in clearance to the steering connector for the tie rod assemble. The sleeves interfered with the sway bar.
Couldn't spin it in and thrashing around trying to make a quarter turn, then bend the inner rod and turn it again, while getting threads started, just wasn't enjoyable. So I marked the end of the 'armor' sleeve with a metallic sharpie on the inner rod shaft, broke it back down, then readily remounted the inner shaft, then re-attached the outer end and re-adjusted the sleeve / nut back to my marked line.

frontsuspensiontweaks04.jpg
frontsuspensiontweaks05.jpg



when it was all done, it seemed to track fine, but my steering wheel is now off center a tad. That's a problem for the alignment guy to fix.

I found no discernible play in my boll joints, nor any great wear in my front brake pads after 2yrs / 12k mi. My rotors needed turning 2yrs ago, they still do. Nor any real wear in my upper or lower control arms. All the suspension bushings got a liberal soaking in silicone lubricant and fresh grease on all the fittings.

I also took a full turn off my torsion bolts, after putting 5 turns on them last week after the rear lift changes. The front was pretty jouncy and seemed to feel like things were 'teetery'. But since I turned them down a bit AND lubed the **** out of everything, hard to tell what made the most difference. Thing rides pretty nice again. A bit more driving and maybe another torsion tweak and then I'll call it done and get the alignment.
 
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kojackJKU

Autism Family Travellers!
The "beehive" ones are probably better anyways. look more progressive. I am hoping to get at the burb today. I don't want to **** it up royally because its running now, and it can plow my driveway/work lot. Its crazy, Rock auto has the coils for 24 dollars a pop, my local store 99 dollars. same with plugs and wires.
 

Stryder106

Explorer
Nice job. BTW - I just order the Spohn Performance rear upper and low control arms you PMd me about. Spoke with them on the phone - 10X stronger than stock with more articulation. Not a bad price either. so - thanks for sending that my way as I'd never heard of them before.
 

rayra

Expedition Leader
Well, BALLS on the suspension / steering. Just wasted 90min+ of non-raining time at my local single-store tire shop, to find out I can't get it aligned. Too much play in idler and pitman arms. Knew one tie rod end was sloppy (looked original), but seemed ok when I got it all back together. And they found some lower ball joint play that I couldn't detect when jerking on the wheel / tire while in my driveway up on a jack.
While they worked up their estimate I jumped on the 'smart' phone and hit rockauto. ~$150 in Delco parts for pitman, idler, and both tie rod sets. Essentially replacing everything but the center link and steering box. Would take about 2-3hrs with proper pullers. And I've already had everything else apart. They quoted me $710.
It's still pulling slightly right, with the steering wheel cockeyed to the right, but it's pulling LESS than before I took it apart. So I guess I need to start accruing parts again for another round. And hope my tires don't get chewed up too fast. In fact I might even fiddle a little with the adjustments to take out the veer, correct the steering wheel alignment and if it turns out I've got the toe-in off enough to cause tire edge feathering. But maybe enough slop in there to forestall that anyway.

And unfortunately the ball joints are pressed in. Might be the excuse I need to buy a Harbor Freight hydraulic shop press for $150. Probably cost me half of that anyway to have the four balljoints pressed out.

And, well, crap, if you have the control arms out for that, well there's no better time to change their bushings too. Have a fully rebuilt front steering and suspension by the time I'm done.

I'll price that all out late tonight, for now, the ground is dry under a threatening sky and I've got the correct rear brake pads so I'm gonna try to slam in that brake pad change before it rains / gets too dark & cold. The not-so-subtle screeching of their wear indicators is driving me nuts. As intended.
 

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