Time for a tune up

[Danzigman]

Is it best to stick with OEM plug wires or go aftermarket? I have read a few articles and now I am more confused than before I began. The Tahoe has 140k on the clock with the original wires. I replaced the plugs several years back with rapid fires. What is the interval of change on plugs in these modern engines? What about 02 sensors? Do they need to be replaced before failure? Any other tune up tips you can share I would appreciate it.

 

[HiHoeSilver]

Is it best to stick with OEM plug wires or go aftermarket? I have read a few articles and now I am more confused than before I began. The Tahoe has 140k on the clock with the original wires. I replaced the plugs several years back with rapid fires. What is the interval of change on plugs in these modern engines? What about 02 sensors? Do they need to be replaced before failure? Any other tune up tips you can share I would appreciate it.

Plugs and wires are listed for 100k. Most guys stick with OE delco plugs. Upgrade the wires. Taylor or VMS 10.4 mm are probably your best options. The o2 sensors can get lazy as they age. A live data scanner is the best way to check. Cleaning your MAF and throttle body is a good idea while you're playing in there.

 

[HiHoeSilver]

Is it best to stick with OEM plug wires or go aftermarket? I have read a few articles and now I am more confused than before I began. The Tahoe has 140k on the clock with the original wires. I replaced the plugs several years back with rapid fires. What is the interval of change on plugs in these modern engines? What about 02 sensors? Do they need to be replaced before failure? Any other tune up tips you can share I would appreciate it.

Plugs and wires are listed for 100k. Most guys stick with OE delco plugs. Upgrade the wires. Taylor or VMS 10.4 mm are probably your best options. The o2 sensors can get lazy as they age. A live data scanner is the best way to check. Cleaning your MAF and throttle body is a good idea while you're playing in there.

 

[drakon543]

i would get Taylor wires and either recommended delco plugs or ngk plugs. you dont need anything besides recommended plugs. the wires i recommend only because of the quality i see with Taylor wires.

 

[Doubeleive]

02 sensors are rated for 100k, if money isn't a issue I would recommend doing all 4 at once, and keep on truckin, rockauto or amazon will probably have your best prices

 

[Danzigman]

Anyone know the ac part numbers for the o2 sensors?

 

[NardDog]

Ditto on the MAF

 

[HiHoeSilver]

Anyone know the ac part numbers for the o2 sensors?

This has been a very valuable link for me to get the starting point for part shopping.

https://parts-catalog.acdelco.com/catalog/catalog_search.php

 

[iamdub]

This has been a very valuable link for me to get the starting point for part shopping.

https://parts-catalog.acdelco.com/catalog/catalog_search.php

Bookmarked!

 

[Danzigman]

I wish this one would show the professional series part numbers.