SunlitComet
OBS Jedi-Do Good
hmm, how about a worn out leaf spring if not a broken shock? do the bounce test on each corner and see what happens. should take five minutes so it should not work you too hard. don't want you to overstress yourself.
What did you do to your OBS GMT400 Tahoe/Yukon Today?
- Thread starter 96ProCompTahoe
- Start date
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noJeepshere
Full Access Member
The oil pump in my Yukon died on my way to work this morning 
211k miles was all the life it had. The distributor had been loose and messing with the timing, but I thought I had that issue fixed until it started running like crap on my way to work this morning. Then my check gauges light came on and there was no oil pressure. "Oh ######!" And I pull over to take a look, oil level is fine and no signs of a seal failure, grab the dizzy and it rotates freely... crap. I had no choice (I was only a mile from work) but to drive it very gingerly to work, keeping the revs low. Hopefully the Mobil1 did its job and kept my engine safe. Wasn't clattering or anything when I parked it. Now I get to fix it...yay.
cent frum a smaert fone
211k miles was all the life it had. The distributor had been loose and messing with the timing, but I thought I had that issue fixed until it started running like crap on my way to work this morning. Then my check gauges light came on and there was no oil pressure. "Oh ######!" And I pull over to take a look, oil level is fine and no signs of a seal failure, grab the dizzy and it rotates freely... crap. I had no choice (I was only a mile from work) but to drive it very gingerly to work, keeping the revs low. Hopefully the Mobil1 did its job and kept my engine safe. Wasn't clattering or anything when I parked it. Now I get to fix it...yay.cent frum a smaert fone
SunlitComet
OBS Jedi-Do Good
did it shear off the oil pump drive off the bottom of dizzy? how come you have so much of a problem with the dizzy lately?
noJeepshere
Full Access Member
I haven't had time to look into it yet.
cent frum a smaert fone
cent frum a smaert fone
SunlitComet
OBS Jedi-Do Good
hurry up, i am waiting in suspense here.
noJeepshere
Full Access Member
It was simple, the clamp holding the dizzy worked loose and let the shaft ride up the cam until it disconnected from the oil pump and threw the timing way off.
cent frum a smaert fone
SunlitComet
OBS Jedi-Do Good
so everything is is back to normal then with no damage or need to replace parts? was an underwear change involved?
noJeepshere
Full Access Member
Everything is peachy now. I was pretty nervous about driving it for any amount of time without oil pressure getting oil to the top end, but within seconds of firing it up after my repairs, the lifters all went quiet and it ran silky smooth again. I did make double and triple sure that the clamp was very tight and properly positioned, and I'll have a shop hook up a computer to it to adjust it to with +/- 2° like it's supposed to be.
cent frum a smaert fone
cent frum a smaert fone
Gzes
the drifting 2dr
Hopefully tomorrow I'll get started on my how. Just gotta send alt to get upgraded and buy a ir gun to set e fan temps
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