K5 Blazer 1969-1994
While this model ended its run, it is not uncommon to see them on the road or off, years after production end.
Platform: Truck, GMT 400

1983 K5 engine troubles

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Old October 1st, 2009, 1:00 AM
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Default 1983 K5 engine troubles

I found a listing for a 1983 k5. overall, it's in decent shape (for a project base). The guy says it runs fine until it get to normal operating temp. Then it sputters and dies as if its out of gas. Any guesses on what the problem may be. I'd like to know what I might be getting in to before I buy it.
Old October 2nd, 2009, 9:10 AM
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My guess would be issues with the carb, sounds like it's running lean after the choke opens up.
Old October 3rd, 2009, 12:00 PM
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Nope, It's a blown head gasket, or worse a cracked head. When the thermostat opens up at operating temp, water/coolant gets in to one or more cylinders. I passed this one up. The guy was asking more than it was worth to fix it.
Old October 3rd, 2009, 8:04 PM
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Good eye, but maybe still a good project vehicle if he adjust the price.
Old November 26th, 2009, 12:29 PM
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Default 1983 K5 engine troubles

sounds like a good price, I really want an LQ9 but if I found an LQ4 for a good price then I think Id do that. Was it worth the swap, did you notice a good amount of power?
Old December 1st, 2009, 10:33 AM
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sounds like a good mud bogger project eh george
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