You don't need it to rewire the engine plug wires. Here's how...
Given the firing order for a Chevy V8 engine. (1,8,4,3,6,5,7,2) Google firing order of that eng and model to fact check.b Do by test is ok too you won't hurt anything.
With distributor cap off ...Crank engine without the coil wire (center wire on distributor) and see whitch way the rotor rotates.
Set engine ( by carefully cranking) to # 1 ( align mark on lower engine pulley at the center of the engine. (called damper pulley)
Youll see an alignment mark for timing when the two are aligned your at # 1's firing point. Then go in sequence ( same as rotation of distributor rotor when cranking and plug in wires in firing order 1-8-4-3-6-5-7-2.
Spark plugs ( cylinders are numbered on drivers side front to back 1,3,5,7.
On the passenger side they're even numbered 2-4-6-8 fron to back so you'll statr with the front right, followed by the rear left and so on.
Also, here is a diagram: http://autorepair.about.com/library/firing_orders/bl-fo-3700.htm
You can get the mirror wiring diagram needed to hook up 8 wires for 1999 Tahoe at the motor vehicle text books.
When changing spark plugs for the first time, a diagram comes in handy. A spark plug wiring diagram for a 1999 Honda Prelude can be found in its maintenance manual.
You can find a 1999 Chevy Tahoe engine fuse block wiring diagram in the car's owner's manual. You can also find it at most auto part stores.
online keep googleing
Google would be your best bet.
There are a couple of reasons why a 1999 Tahoe headlights may not work. A couple of reasons could be blown bulbs or the wiring.
A diagram to replace the brake light on a 1999 Tahoe can be purchased from your local auto parts store. It is located in the Haynes 1999 Tahoe Repair Manual.
The 1999 Chevrolet Tahoe exhaust diagram, for bank 2, can be obtained from most Chevrolet dealerships. The diagram can also be found in the owners manual.
There is no such thing as a free wiring diagram
The 1999 Ford Transit cold start wiring diagram can be obtained from most Ford dealerships. The wiring diagram can be found in most Ford repair manuals.
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How do I replace the spark plugs in a 1999 Cadillac Catera?