Please Help! Messed up the order on new spark plug install.

[sharouk19]

Hello everyone,
Hope you're all having a great day. I just changed the spark plugs and wires on my '03 Chevy Tahoe LT, 5.3 litre. In the midst of changing the spark plug wires, I confused them and lost track of the position of each spark plug wire. At the bottom of each of each spark plug wire, there is a 3-digit number on each one. Could anyone please tell me where each of these spark plug wires go? I believe that each wire is specific to the position on the engine. Your help is greatly appreciated! Thank you in advance.

 

[bkboatnsleds]

I don't think it should make any difference....

 

[TailHook]

On each bank, front coil goes to front plug, second coil to second plug...so on and so on.

 

[bkboatnsleds]

Agree - But all the wires should be the same...

 

[ILLEGAL REGAL]

On each bank, front coil goes to front plug, second coil to second plug...so on and so on.

doesnt get any easier than this but drivers side cylinders are 1/3/5/7 and pass side are 2/4/6/8 front to rear and firing order is 1-8-7-2-6-5-4-3

 

[TailHook]

Agree - But all the wires should be the same...

Agreed...

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All your wires should be the same length (IIRC, 10.5" for square Melco coils and 9.5" for round Delphi coils). As long as each coil is connected to the corresponding plug, all is well.