Question about 1997 GMC Jimmy

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I have installed a rebuilt 5.7 vortec into my 1997 Sierra. I would like to know the initial position for intalling the distriutor. I have installed many older ones correctly by aligning the rotor on number one when in TDC. How is this type aligned properly?

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I would think, the same way. but look for a tiny slot on the electronic dist and point it at # 1......

Posted on Nov 15, 2009

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It is done the same way ,one of the things that has not changed.

Posted on Nov 15, 2009


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Lower gear on distibutor is severly worn by cam shaft

This was a common problem on the Vortec for a year or two. The distributor gear was too soft and prone to wear.

Here's the proper procedure to replace:

You could also exchange the entire distributor for a rebuilt one.

Jan 01, 2011 | 1997 GMC Sierra

1 Answer

Hi, i swapped a 97 4.3 vortec to 98 5.7 vortec in the 97. The problem i"m having is the fuel pump is running for about 15 to 20 sec, and when i start it, it starts and then shuts off in the on...

You could take ou the fuel pump relay and replace it with another one just like it from the fuse box under the hood. That will let you know if the relay is bad.

Dec 27, 2010 | 1997 GMC Sierra

1 Answer

How to set timing on a 1997 v6 4.3l gmc vortec engine need to know specs. I am installing a new motor in the truck.

On the drives side long the fire wall on the harness, will be one wire from all the other ones, it could be brown or tan, disconnect the that wire, start engine and set timing, turn engine off reconnect wire and check timing again, should be advance now, also some times that will cause an engine light to come on, just disconnect battery for 15 sec. and computer is reset.

Jul 09, 2010 | 1997 GMC Sierra K2500

1 Answer

I need the firing order of 1996 gmc engine sierra 5.7liter vortec

For the 1996 GMC SIERRA with 5.7L V8:

Firing Order:


Distributor Connections:

Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at!

May 30, 2010 | 1996 GMC Sierra

1 Answer

What is the operating parameters for the fuel pressure regulator in a 1997 sierra 1-ton 350 vortec

It should maintain the fuel pressure at about 55 psi when the engine is at idle.

May 16, 2010 | 1997 GMC Sierra

1 Answer

Upgrade 1996 Chevy 4.3L V6 to 5.7L Vortec V8 electric conversion

Different computer for sure, and probably a bunch of sensors, distributor, wires , starter, plug - ins, etc. The only way I would ever attempt that is if i had a whole perts truck to pick off of. You'd be far better off to fix the head gasket, sell it, and buy a truck with a V8 in it already, than to try that.

Aug 19, 2009 | 1996 GMC Sierra

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