jay loukakis

2 and a half years ago I bought the E3 plugs was getting codes had it scand had 20,000 missfires bought the Delco Ird. have had no missfires and it runs great.

Snoopy

Didn't the manufacturer of the E3's appear on this forum....introduce himself and offer to answer any questions. He never reappeared.

Also, I believe several of the GM vehicles that use the E3 plugs have experienced mild to severe operational problems. In one instance, even the E3 spokesman indicated not to use them.

But do whatever you THINK is best !!

sleeper

@ 20K, I pulled my OE plugs for a look-see, They looked fine, checked gaps & added some anti-seize to the threads & re-installed..

Snoopy

Sleeper (and any other members who may be interested)....

I remember reading, that spark plug manufacturers add a dry anti-seize lubricant to the plugs before packaging. They (almost all the name brands) specifically recommend NOT adding additional "compounds" to the plugs on installation.

Maybe HyperV6, who is employed in a related business, either knows something or Can provide info from the manufacturers.

If I can find the quotes, I'll post them.

However, removing and reinstalling the originals may present a different problem

IgottaWoody

Have to be careful not to get the antiseize beyond the cylinder where it can burn and foul sensors....other then that and maybe heat transfer, shouldn't pose any problems....steel and aluminum dont mix...ask any Ford Excursion owner that has to pay to remove broken plugs......

sleeper

Snoopy Yes I did add some to them..Very light, & away from the ends & No problems at all since removal & re-install..

But am interested in any 'pros or cons' about this..
If it involves possible over-torquing or heat transfer, and that new plugs come with a pre-coating on most of them.. I am aware of those already.

Thanks.

jay loukakis

The manual states the Delco Ird. are good for 100,000 miles. enough SAID.

Zagohhr

+1

I tried bosch 4 electrodes and autolite Iridium...Don´t waste your money.

saxrocks2009

I work at a parts place and the amount of people that come in thinking they want the fancy Bosch plugs is just incredible. I try to talk them out because so many people have complained about those plugs. Some people still buy plugs and then they come back in to buy the plugs I tried to sell. We always try to sell what the vehicle came with.. AC for GM, Motorcraft for Ford, Champion for Dodge, NGK for foreign

T's HHR

that's what I have...what is the gap for a 2008 hhr 2.4 ? thanks in advance for a response