How to set ignition timing on a Chevy Silverado?

How to set ignition timing on a Chevy Silverado?

Timing set around 4-6 degrees at idle with some advancing occurring when accelerator is depressed. No engine stumbling or stalling, drive performance is tolerable. However, service engine soon light remains lit, of course. Confirmed that number 1 cylinder location on distributor is correct at TDC. Also replaced IAC and Throttle position sensors.

Where is the spark timing wire on a 1994 Chevy Silverado?

Disconnect Tan/Black Electronic Spark Timing (EST) by-pass connector wire located near distributor or under the dash in the center or by the passengers side. EST connector is located inside cab right side by heater motor, not under the hood, 1994 and up). DO NOT disconnect 4-wire connector at distributor.

Where is the est connector on a 1994 Chevy Silverado?

EST connector is located inside cab right side by heater motor, not under the hood, 1994 and up). DO NOT disconnect 4-wire connector at distributor. Connect timing light to No. 1 spark plug wire. Check timing and adjust if necessary.

How is ignition timing set on a 94 Chevy Silverado?

There is no spout connector to unplug on a 94 Silverado with the 350 to set the ignition timing. The timing is set the conventional way. It wasn’t until the model year 95 Silverado where a spout connector had to be unplugged in order to set the ignition timing. This truck should have the tan wire.

Where is the set timing wire on a Chevy?

On some years the set timing wire is tan with a white stripe/tracer. The set timing wire is located, under the hood, on the main harness that goes from the engine to the firewall, on the passenger side, sometimes underneath the black plastic cover (if it’s still there) that covers the junction block, relays & fuses.

Where is the base time on my Chevy Silverado?

Look under the the dash on the passenger side near the heater box should be a single tan wire with a black stripe. May have to pull carpet back some to locate it. If you cannot find the timing set disconnect, simply removing the connector from the coolant temperature sensor will cause the computer to default to base time.

How to set timing on a Chevy TBI?

Loc: Twin Cities, Minnesota, U… To set the timing you must unplug the set timing connector, which is a single Tan wire with a black stripe/tracer on it. On some years the set timing wire is tan with a white stripe/tracer.