Question about 1999 Chevrolet Blazer

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1999 Chevrolet Blazer oil pump

How difficult is the job to change an oil pump for my truck?

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  • Anonymous Dec 07, 2008

    oil pump needs replaced on a 1999 chevy silverado 4x4

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You must disconnect the motor mounts and remove the colling fan blade(so it won't hit the shroud) and raise the engine as high as poss, then remove the flywheel flex-plate cover and remove all the pan bolts, gently pry the pan from one side to the other until the gasket breaks loose, remove the old oil pump and reverse the procedure.

Posted on Oct 04, 2008

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1 Answer

Lost all oil pressure and the blazer shut off. its a 1985 2.8 v6. is there a automatic cut off in the car? And how hard is it to change the oil sending unit?


The fuel pump gets power from the oil pressure switch once the engine is started. So if oil pressure drops below 5 psi the engine should stop.
Other than a special socket to fit the oil pressure switch, its not too difficult to change.

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I was driving my 2001 blazer and the oil filter burst, we towed the Blazer home, replaced the filter and it blew apart, what can cause this, 4.3 auto 4x4, ed.


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1 Answer

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Hello.
The oil pump is mounted inside the oil pan and driven by a shaft that drives both the distributor and the oil pump.
The oil pan will need to be removed to access it.
Once the oil pan is off the oil pump is easy to change, although a messy job.
Thank you for using FixYa.

KL

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the drain plug will be on the oil pan. look on the lower drivers side of your blazer will be a 15mm plug

Oct 20, 2008 | 1999 Chevrolet Blazer

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