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1994 gmc sierra 1500 timing specs - C1500 GMC Cars & Trucks

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The timing may be adjusted only on those that are equipped with a conventional distributor ignition. if equipped with the distributorless Electronic Ignition (EI) system, the control module set timing and makes all necessary spark changes. On these systems, the cranksshaft position sensor is mounted in a fixed position, therefore not allowing for adjustment. The HVS system found on some 1995-97 vehicles is also not adjustable.

Posted on May 22, 2011

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coop442000
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SOURCE: I have a 1994 GMC 1500 Sierra with 350 engine 5.7

The timing (base), is 0 degrees before tdc. Keep in mind the timing connector must be unplugged. usually a brown wire with a black tracer, has a single connector, located under glove box, or by distributor. Thanks...

Posted on Sep 22, 2010

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SOURCE: 1997 GMC 5.0 litre 1500 sierra fuel pump hums all

That's a posibility!

Test fuel pump pressure, if it is low or doesn't hold up, change it before quits.

Also, check the fuel pump relay, it could be stucked.

Good Luck

Posted on Mar 07, 2010

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I have a 1994 GMC 1500 Sierra with 350 engine 5.7 what should the timing be set at?


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1992 GMC C 1500 P/U 2WD 4.3 liter V-6 VIN "Z"

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1992 GMC C 1500 P/U 2WD 5.7 liter V-8 VIN "K"

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