Mechanics

GMC TRUCK DISTRIBUTOR PROBLEM

1994 GMC Truck • 100 miles

1994 gmc truck 5.7, sputters on acceleration-idles fine. New cap, rotor, distributor, plugs, coil, wires, temp sensor, fuel pump. Fuel pressure checks out, relay checks, timing is close, no frayed wires. Egr?

it did this previous to installing new parts. When I finally replaced ignition module in distributor, stopped sputtering, but eventually came back. Just replaced distributor, still does it, but runs much stronger and sounds much better at idle.
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Guest
January 19, 2013.




Check with choke spray under tbi unit in back they blow gaskets there. If rpm changes it's blown.

Hmac300
Jan 19, 2013.


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