Spark Plugs

**Motomas93** · 03-18-2012, 11:24 AM

I have a 97 v6 firebird and not even 10k miles ago had wires and plugs done and i already have a misfire. Just wanted to know if anyone has had problems with these cars burning up spark plugs?. Thanks

**35th-ANV-SS** · 03-18-2012, 11:29 AM

The first thing I would do is check to ensure that the wires are fully put on. Maybe one came loose.

Also, check to make sure none of the wires accidentally got burned. I would especially look at the one that runs next to the exhaust manifold on the driver's side.

**Motomas93** · 03-18-2012, 11:53 AM

Yeah i just went over all the wires and they are all good and the boots are all on tight and still have the shields on them. Just found its cylinder 4, so which plug would that be?

**35th-ANV-SS** · 03-18-2012, 12:05 PM

1 6 5 4 3 2 is the firing order. So cylinder 4 is the middle one on the passenger side.

**flybird** · 03-18-2012, 12:45 PM

Check your coil packs

**Motomas93** · 03-18-2012, 02:11 PM

Thanks, swapped out plugs and its fine again and the coil pakcs are also brand new, had them done when i got plugs and wires

**GTP231** · 03-18-2012, 05:34 PM

What kind of plugs? Sometimes the NGK ends come loose and can cause misfires

**Motomas93** · 03-19-2012, 02:11 AM

Just running acdelco's, the plug looked burnt up but it shouldnt have this soon

**GTP231** · 03-19-2012, 10:37 AM

Any pinging?

**Smittro** · 03-19-2012, 08:42 PM

Could have been a faulty plug, keep an eye on it and let us know.

**Motomas93** · 03-20-2012, 02:09 AM

Yeah im thinking it was just a bad plug cause it didnt look burnt so probably had nothing to do with the car and i pulled a couple of the other plugs and they all look fine

**GTP231** · 03-20-2012, 07:55 PM

Which is it burnt or not burnt. Your last 2 posts contradict each other

**Motomas93** · 03-21-2012, 01:47 AM

Sorry i worded that weird, i meant they look a little burnt but not enough to be going bad so im guessing i just got a bad plug

**Smittro** · 03-21-2012, 07:00 AM

Did maybe you lose the spring on the end of the heat shield for the plug boot?
It keeps the heat shield itself from getting too hot being near the exhaust ports & manifolds, and keeps them from rattling too.

**Motomas93** · 03-21-2012, 07:33 AM

I never even knew there was a spring on there, thought it was just that shield, is the spring between the shield and the boot itself?

**Smittro** · 03-22-2012, 04:50 AM

Originally Posted by Motomas93

I never even knew there was a spring on there, thought it was just that shield, is the spring between the shield and the boot itself?

Sorta yes..
The springs are attached to the bottom of the shields.
They hang off the shield about 1/2 inch or so sticking out of the base of the shield and resting on top of the plug nut.
Shield goes over the wire boot then onto the plugs..
When you let go after installing the boot over the plug, the spring pushes the boot shield up against the top of the boot where it's is thickest.
This isolates the shield and boot from everything else that gets hot around it.