What did you do to your OBS GMT400 Tahoe/Yukon Today?
- Thread starter 96ProCompTahoe
- Start date
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chaingun427
OBS Mad Scientist
60lbs compression on #6 visible shaking of an internally balanced motor led to a compresion test, pulled the head after a leak down test and found this
head gaskets were starting to rot too so they needed changed anyways
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Sent from my SAMSUNG-SM-N920A using Tapatalk
Big Poppa Pump
Full Access Member
Completed my front hub replacement a few days ago. I used Timken hubs. It did not go easy. My bolts were so bad they needed the bolt heads chiseled off and then extracted due to rust deterioration of the bolt head. Only 2 of the total of six (Did both sides) came out clean. I had to pay to get it up on a lift because it was too involved for jack stands. I also had to pay $13 a bolt because I did not have them on hand and had to pay to have them delivered. The good news is that it fixed the problems I was having with wheel movement and the ABS sensor activating when driving low speeds. Now my truck is back to being dependable. I was going to go ahead and change my front oxygen sensors while I was at it but the rust is so bad I had to stop or risk twisting the whole bung out of the exhaust pipe. I guess 173,000 miles of road salt will complicate things. I wish I would have washed the truck more often.
SunlitComet
OBS Jedi-Do Good
nasty. and a bummer. ringing the whole block or just that one? i seem to notice it appears you also have the wrong coolant in there.
chaingun427
OBS Mad Scientist
Going to do the whole thing, no reason to half ass it twice. I should have comoression tested on the stand so now its biting me in the ass. I'm not sure if thats rust or left over dexcrap, haven't run it long enough to flush it yet
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SunlitComet
OBS Jedi-Do Good
from the looks very old green coolant. that is the way it ages and looks rusty. i can see the green tinting the iron surface.
chaingun427
OBS Mad Scientist
It had 2 gallons of fresh mix with anything coolant, never been fond of dexcool
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Sent from my SAMSUNG-SM-N920A using Tapatalk
FInally got my rear end done (shackle flip and new shocks, ubolt flip kit) and the front end (pitman and idler arms, all ball joints, upper and lower control arm bushings, sway bar bushings and link arms and shocks. CV drive shaft comes in tonight and I should be back on the road after an alignment.
SunlitComet
OBS Jedi-Do Good
what about the road to the alignment? is it not worthy?
measured new and old tie rods and they're close enough to get me down back country oklahoma roads to the alignment shop. I'll wear my seatbelt and go early in the morning so when it falls apart because I forgot to tighten something, I won't hurt anyone else.
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