I recently needed to check/adjust timing on the same model you have, and had the same question since the service manual (Haynes) gave a location description completely at odds with what I was encountering. A Chevy expert said it was a tan wire with a black stripe located under the dash on the passenger side close to the heater and next to but separate from a larger wire bundle. He was spot on. With the connector unplugged, and engine idling, set the distributor for zero degrees. After locking distributor and a final check, reconnected timing wire and was good to go.
The timing is set on a 98 Chevy Silverado 1500 5.7L by aligning the cam sprocket with the timing chain markings. The engine's computer will then make adjustments on the fly for any additional timing changes needed.
The timing on that year engine is computer controlled. It requires an engine scanner to set the timing. YOU CAN NOT USE A TIMING LIGHT.
That requires a OBDII engine scanner. You can not use a timing light. The timing is computer controlled.
It has a timing chain for sure.
It has a timing chain and gears.
You need to disconnect the timing plug for the computer, then time it to zero degrees. Once you plug the timing plug back in, the computer will self time the motor from there.
What all does the ECM computer control on my 2006 Chevy k1500 Silverado
That year did not have one because the timing is computer controlled and can be only adjusted with a Engine SCANNER.
Yes it will if you know how to use the scanner.
It does not have a timing belt. It uses a chain.
It should be 6 degrees before tdc, just make sure you disconnect the distributor's computer control wiring harness before you adjust, and check the timing with a timing gun.
There is no timing ajustment on that year. It is controled by the computor.
disconnect the hose and remove 2 bolts.
disconnect the battery
NO. No computer on that year.
Behind the glovebox
There is no timing adjustment, The computer controlls the timing.
Disconnect the battry for one hour: then reconnect-That should do it.
It does not HAVE a timing belt. It has a timing chain and it will most likey last the life of the engine.
It is behind the timing cover on the front of the engine. You will have to remove the timing cover to get to it.
First unplug brown wire to computer , set timing at o degrees, turn off engine, disconnect bat, wait 10 to 15 seconds , hook computer back up , connect bat cable back , start the engine and the computer will set the correct timing.
You have to drop it down or raise the bed to get to them. then it is just clamps
Disconnect the negative on the battery terminal for 15 seconds.
Emmisions sticker under hood should have timing setting try 8 before the wire is a single connector look in the plastic cover on top of firewall that holds wires going across it