Question about 1983 Chevrolet Blazer

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Replacing freeze plugs withyout taking flywheel off and ......

Transmission is backed off the rear of the engine block to replace a freeze plug that was the problem, after I replaced one just forward and above the starter on the right side of the block that I thought was the whole problem. I don't to take the flywheel off if there are no more lurking in a blind spot behind it, so I am currious because it was suggested that there are 2 freeze plugs on the rear of the block.

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  • Raymond A. Yoder Sr. Jul 06, 2010

    What engine?

  • ecesisdynami Jul 06, 2010

    1983 chevy blazer S10 with 4 wheel drive 2.8 litre V6

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HI,Yes you have a total of 8 freeze plugs on this engine,2 at the rear of the engine behind the flywheel/flexplate,2 on the front of the engine and 2 on each side of the block.1 on each side hides behind the motor mounts.Hope this helps.Thank You for using fixya. please rate this if it helps.Thank You,iluv2fish.... Ray....

Posted on Jul 06, 2010

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Yes transmission and fly wheel will have to come off to replace the rear freeze plug's on the engine block, yes there is some freeze plug's back there.

Posted on Jul 06, 2010

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There is a tube that runs from the back of the water pump under the intake manifold and out the rear of the engine where it hooks up to the heater hose/heater core. This tube has a small hose connecting it to the back of the water pump. There is also a hole in the back of the engine block that will allow antifreeze from under the intake manifold to leak into the transmission bell housing area. When this tube or hose leaks, it often gets mistaken for a leaking rear expansion plug.

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The DORMAN part number for your vehicle is 615-178 (See second picture below)


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