Adjusting Timing 1994 5.7l

[shooked]

I have a 1994 GM K1500 5.7L and I can not find where the tan wire with black stripe has a disconnect. On my 1992 C2500 it was behind the black cover on left engine compartment. The only thing under the black cover now that does not kill the truck is the orange wire with inline fuse. I disconnected it and there was no change on the timing mark on balancer. If I cant find it, I guess I could cut it and splice it back together?

[BigBlaze]

Hope this helps. I pulled it straight from Alldata.

 

Set timing under the following conditions:

 

* Normal operating temperature.

* Air cleaner installed.

* A/C "OFF."

* Transmission in neutral.

* Disconnect SET TIMING connector.

 

The location of the set timing connector is inside the cab where the heater box and the carpet meet on the passenger side floor. Pull carpet back to expose the single wire and connectors on the outside of the control module harness. The wire colors are tan with a black stripe. DO NOT disconnect 4 wire connector at distributor. (connector is sometimes found hanging right in front of the blower motor)

 

Connect timing light and adjust as necessary by loosening hold down bolt and rotating distributor. Tighten hold down and recheck the timing. Stop the engine and connect SET TIMING connector. Clear control module trouble code by disconnecting control module power source. With engine at operating temperature, drive vehicle at part throttle with moderate acceleration and decelerate to idle condition. This will "teach" the control module and return the engine to normal performance.

[shooked]

Thank you Tremendously!!

[BigBlaze]

Sure thing, that's what forums are for!

[Cerberus]

Uh, actually that location is for the S10 4.3. The EST connector could be one of two places. If you have a TBI motor, the connector is behind the junction block cover on the firewall. If it is a Vortec w/ CFI the EST connector is taped to the harness under the blower motor. If it has never been d/c you have to cut the tape, and pull it down to get the connector disconnected. You can d/c the connector with the engine running at idle, but wait for it to stabilize the idle when you check or adjust the timing. Shut it off when your done and wait 10 seconds after reconnecting the EST to restart.