Oil change

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daedalus

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I was changing the oil in my 98' Tahoe and while i was draining the oil out someone decided to go for a drive. Needless to say they got about 3/4 of a mile and the Tahoe died and will not start. Hoping there might be a safety switch that was tripped otherwise it looks like a new engine. Anybody have any experience with something like this?
 

Yukon&Tahoe

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Ouch..... I guess I'm not certain, but someone should come along that may know.
 

SunlitComet

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it will not even crank over? if not then engine might be seize but you might have interupted the fuel pump operATION IF THE OIL PRESSURE SWITCH WENT BELOW 4 PSI BUT THE PCM IS INVOLved in that as well and should run the pump as needed.

so once again if you can not get it to crank over normally then yes the may have damaged the bearing and crank.
 

07Burb

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Thread moved to appropriate section :waytogo:
 
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daedalus

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Engine

The engine is not turning over. I've thought about resetting the computer by disconnecting th battery for 1/2 hour.
 

07Burb

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Motor is dead. better start shopping :waytogo:
 

KPOD

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That's unfortunate :( I just had my 350 rebuilt, came out to a hair under $2300. They re-used my heads and crankshaft though, guessing they could probably reuse many of your components. Problem is the Vortec rebuild kits cost quite a bit more than the old carb 350 kits.
 

purple 'hoe

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I think whoever started your truck up and took off with it should pay for a new motor.

And yes, new motor. I don't think I'd rebuild that current one myself.
 

SunlitComet

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That is a new drop in stock replacement and an excellent choice get the premium felpro manifold gasket set and move everything over. Break it in and bingo. After 10k switch to Mobil synthetic. By oem lower block HD reached 245k and still reads 153 psi compression.
 

Sasquatch

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Put a socket on the crank bolt with a breaker bar and see if you can spin the engine over. That is the best way to see if it`s seized up. You could remove the spark plugs too so there will be no compression making it easier to turn over.

If it`s stuck, Time for a replacement engine.
 

KPOD

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That is a new drop in stock replacement and an excellent choice get the premium felpro manifold gasket set and move everything over. Break it in and bingo. After 10k switch to Mobil synthetic. By oem lower block HD reached 245k and still reads 153 psi compression.

Why not run synthetic right off the bat?
 

SunlitComet

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rings need time to seat nice in the cylinder walls could start it at 5k really but most of what i read says fuel mileage improves around 10k. so that should be ideal.
 

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