I Changed My Spark Plugs Today And Wires

StLouisMO · August 26, 2011

I changed my spark plugs and wires today. I replaced them with OEM AC Delco parts since I haven't had any problems with them. I'm at 96,XXX miles. The driver's side was easy. The passengers side was more difficult because of the heater hoses, air conditioning hose and dip stick tube and bracket. The first three on the passenger side are manageable. But, that last one against the fire wall is a pain. That took a while. I had to get underneath the truck with a 3 inch extension and 6 inch extension along with a ratch that has a handle that you can extend.

I checked with the Dealer two weeks ago for plug wire prices. They wanted $168 for the set. I bought them from a GM Dealer on E-bay for $69 (plus $9 shipping). Here's a link if you're interested.

http://cgi.ebay.com/ebaymotors/_W0QQcmdZVi...RKQ3aMEWNXQ3aIT

And I bought the sparks plugs from the same Dealer on E-bay for $45 (free shipping). Here's that link if you're interested:

http://cgi.ebay.com/ebaymotors/_W0QQcmdZVi...RKQ3aMEWNXQ3aIT

Anyway, just thought I'd pass on the links to the good pricing that I found.

jro909 · August 26, 2011

no complaints from ac delco wires or plugs...love them

Kirkathon25 · August 26, 2011

yep ill tell you from experience, they are the only ones that work with a gm truck, i replaced mine with some fancy dancy bosch ones once and it throughout my crank pos sensor and tps with all the misfires, ac delco iridiums are the best.

Wires · August 26, 2011

yep ill tell you from experience, they are the only ones that work with a gm truck, i replaced mine with some fancy dancy bosch ones once and it throughout my crank pos sensor and tps with all the misfires, ac delco iridiums are the best.

Avoid the Bosch! All the electrodes fell out of my platinum plugs, twice! And we're talking 10k miles on them!

dwhitton · August 27, 2011

Just did my plugs 2 days ago. Picked them up (AC- 41-110) at Oreilly's for 6.99ea US. Dealer here in Canada wanted $16.99 CDN each. left the wires on though (137,000km) a few service guys said no need to change them.

Ya, I concur, the pass side rear is the worst. Did 7 in 15min, the 8th took 10 min alone.

Thin arms can get at them from the top, 3" extension (I almost ripped the skin off my arms due to the AC pipes), but you need to stand on the 2nd rung of a ladder and lay across the coolant resevoir.

Dont forget to grease the plug tips and ceramic to help the boots slide on and off better.

Doug_Scott · August 27, 2011

Dont forget to grease the plug tips and ceramic to help the boots slide on and off better.

Just a quick note on putting grease on plugs and ceramics. Make sure the wire is completely on, and do not connect the coil end until after you connect the plug end. You will need to rotate the wire quite a bit to ensure it is completely on the plug. If it is not completely on, the wire will pop off due to the air trapped in the end of the plug wire. Once the wire gets hot, the air expands, and because you lubricated it, the wire will pop off. Make sure you hear the click of the wire locking on to the spark plug.