GMBoy: In hindsight wish I had done it before the CEL went off. Its not a hard job at all. I didn't get a real good picture of what I found when I took the intake manifold off but in this pic you can see that both harness boots where popped off exposing both KS to the environment for what looks like years.
The rear sensor which tripped CEL P0332 had a half inch of standing water in the hole. The new harness fit very tight into the hole but to be doubly sure I used RTV / gasket maker black around the boot to seal it in really good. Then used more around the seal to make sure it doesn't come out again. Not sure if the rear foam had anything to do with tugging on the harness but I did not put it back in only the front
Morning piston slap - gone.
GM ticks - gone
Slightly rough idle - gone
Drivetrain slop and clunk - much better almost gone.
Yes I put in a new IMG so some of it can be attributed to that. But I'm also thinking that although they were not tripping a code maybe both KS were not setting timing correctly because without the boots sealing the holes they were picking up other noises??
dailydriver: I did not use that VICTOR REINZ master set because it did not have the grommets for the valley cover. This is the parts I used... ( some Amazon, some RockAuto)
- VICTOR REINZ MS16340 IMG set
- FEL-PRO MS92465 Lifter Valley Cover Set
- FEL-PRO ES71190 lower injector O-rings (not used)
- Lisle 37000 Air Conditioning/Fuel Line Disconnect Tool Set
- Permatex 82180 Ultra Black Maximum Oil Resistance RTV Silicone Gasket Maker
- STANDARD MOTOR PRODUCTS J72001 TechSmart KS harness
- ACDelco 213-3521 OEM KS
Should have bought..
- ACDelco 17113552 GM Original Equipment Fuel Injection Fuel Rail O-Ring Kit. ( or a Fel-Pro/Vic reinz equiv).
The way the fuel rail crossover tube connects to the rails it has the potential to leak. At a minimum the gaskets should be replaced in my case should have replaced the entire crossover tube because of surface corrosion at the seal. I can't find a part number for that.