Spark plug wire burned up - Smoking Cat? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 11-30-2011, 03:14 PM   #1
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Jun 2009
Posts: 363
Thanks: 0
Thanked 0 Times in 0 Posts
kparrent is on a distinguished road
Default Spark plug wire burned up - Smoking Cat?

All,

I was on my way to a shop today (ironically) to get an oil leak which I thought was the pan (what they told me last time I was in) sealed up, because I had tried it twice and was pissed off it was still leaking. The good news is they said the pan isn't leaking, proving I'm somewhat competent. Bad news is, they say it'* the lower intake.

Anyway, on the way there I pulled over because I had smoke coming out from under the hood. After looking under the car, I saw the cat was smoking very badly. So I drove it the rest of the way there, it was only a few minutes out. After doing diagnostics all morning, they told me the plug #5 wire burned up on the exhaust manifold. Very possible, but would this cause a smoking cat?
kparrent is offline   Reply With Quote
Old 11-30-2011, 03:32 PM   #2
Senior Member

True Car Nut
 
sseidriver97's Avatar
 
Join Date: Mar 2010
Location: Portage mi
Posts: 7,124
Thanked 3 Times in 3 Posts
sseidriver97 is on a distinguished road
Default

Your cat more than likely has a hole in it or has(d) something stuck to to it.That or its plugged up
sseidriver97 is offline   Reply With Quote
Old 11-30-2011, 05:28 PM   #3
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Jun 2009
Posts: 363
Thanks: 0
Thanked 0 Times in 0 Posts
kparrent is on a distinguished road
Default

They claim everything looked fine with it. They want $993 for tune up and replacing oil pump gasket / timing cover gasket. It looks like the timing cover gasket set comes with a water pump gasket. Does the water pump have to get pulled to do this?
kparrent is offline   Reply With Quote
Old 12-01-2011, 03:34 AM   #4
Senior Member
True Car Nut
 
rjolly87's Avatar
 
Join Date: Jun 2003
Location: Las Cruces, NM
Posts: 6,857
Thanked 298 Times in 246 Posts
rjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant futurerjolly87 has a brilliant future
Default

Yes. The water pump sits right on top of the timing cover, with, I believe 3 bolts, that go through the timing cover to the block. If you are going that far, why not replace the timing set as well?

For the price tag, that is a lot, but I have no point of comparison. It was a good full weekend project though between me and my dad when we did ours on the '90 SSE.

Usually for underhood smoke, biggest offender is valve cover gaskets leaking on to manifolds, but if you had a bad spark plug wire, that would likely send unburned fuel straight to the cat, which there it will burn, and heat the cat that much more.
rjolly87 is offline   Reply With Quote
Old 12-01-2011, 09:38 PM   #5
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Jun 2009
Posts: 363
Thanks: 0
Thanked 0 Times in 0 Posts
kparrent is on a distinguished road
Default

I went ahead and had them do it. I did the water pump a few weeks ago so I'm familiar with the process. A lot of effort to put in to have to go through it again. Oh well, life goes on
kparrent is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Need Plug Wire Part Number and NGK Plug Part Number!! josho66 2000-2005 11 05-29-2005 01:06 PM
Could a messed up spark plug wire keep the car from starting Str8pimpin 1992-1999 4 10-01-2004 10:22 AM
new member / spark plug wire question blacksheep 1987-1991 2 11-16-2003 01:27 PM
Spark Plug Wire goo randallons General GM Chat 3 08-21-2003 12:21 PM
Spark Plug Wire Replacement Question--95 Series I SC 95BonnevilleSESC 1992-1999 10 10-08-2002 12:47 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 11:40 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.