Question about 1994 GMC Safari

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1994 GMC Safari V6. Heavy loss of coolant, even when the engine isn't running. Appears to be coming from the engine block behind the A/C compressor bracket. Checked radiator, hoses and water pump. All good. Is this a blown out engine drain plug?

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Most likely it is a freeze plug

Posted on Nov 06, 2010

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Why is it that my 4.3 v6 gmc 1994 sierra gets real heavy when I turn on the a/c ? And when I step on the brake and gas to flor it it turns off on me ? Is it the motor that is tire or.....


GM AC compressors have been known to require a lot of energy to turn them. I had the same issue in my '86 SS Monte Carlo. I became accustomed a long time ago to not using my AC, even on hot days, unless I was traveling for more than 20 minutes to my destination. As for flooring it, many cars kick out the compressor because the engine needs all the power it can generate to do whatever you need, such as passing someone or avoiding an accident.

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1 Answer

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Try putting a little fuel in the carb, if it fires up and starts it will be the float in the carb float chamber has got stuck, easy to strip and clean, be up and running well within an hour ;)

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1 Answer

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2 Answers

1994 Safari


have the computer checked or inspect fuel injecters if all else fails fuel pump weak.

Oct 03, 2008 | 1994 GMC Safari

1 Answer

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remove catalitic converter or might need to replace the upper intake gasket.

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