LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Replaced Ignition Coil Still have Issue...

Old 05-11-2003, 04:50 PM
  #1  
Registered User
Thread Starter
 
Join Date: Jan 2002
Location: Raleigh, NC
Posts: 274
Replaced Ignition Coil Still have Issue...

What's up Fella's,

I just finished swaping out my ignition coil on my '95 Z (145,000 miles) and I'm still experiencing the jerky/skipping feeling throughout the rpm range...

Is it my Opti...That's what I would think...Help me if you can...

I do hear a crackling sound every once and a while while I'm driving...not sure if it's related...

Take care,
TIM
TDog is offline  
Old 05-11-2003, 06:07 PM
  #2  
Registered User
 
Join Date: Sep 2002
Location: Staunton, Illinois
Posts: 656
it could be a variety of things. usually the coil causes a high rpm miss. how old is the opti? how old are the plugs/wires? how old is the coil wire? are all the plugs in snug and is there a good connection from the wires on each plug and on the opti?
cals400ex is offline  
Old 05-11-2003, 08:36 PM
  #3  
Registered User
Thread Starter
 
Join Date: Jan 2002
Location: Raleigh, NC
Posts: 274
Opti was changed at 70,000 miles...Spark plugs and wires were chagned at about 80,000 miles...Coil Wire has never been changed...

What exactly does an opti going out feel like...

Thanks,
TIM
TDog is offline  
Old 05-11-2003, 08:38 PM
  #4  
Registered User
 
Join Date: Oct 2002
Location: Bay Area, CA
Posts: 348
A bad opti feels like a jerking when accelerating through low rpms and has a high rpm miss.
Indy93Z28 is offline  
Old 05-11-2003, 10:22 PM
  #5  
Registered User
 
shoebox's Avatar
 
Join Date: Dec 1969
Location: Little Rock, AR
Posts: 27,599
If that "crackling sound" is plug wires arcing, then you have found your miss. Take a look at it in the dark and see if you see any fireworks.
shoebox is offline  
Old 05-11-2003, 11:59 PM
  #6  
Registered User
 
Join Date: Sep 2002
Posts: 247
what is arching wires? ive got that damn miss and it keeps getting worse, ive changed all the plugs and the wires seem fine just odd that only the dirivers side muffler will pop i dont have an X or Y or H i just have the lt's and header mufflers, but this is pissing me off almost makes me want to be a ford fan. NOTTTT but when i see the ses flashing and it stumbles it pisses me off but then it will stop for a while and miss and vibrate like a damn idiot with a beat box in the trunk!
Wildwill532 is offline  
Old 05-12-2003, 12:04 AM
  #7  
Registered User
 
Join Date: Mar 2003
Location: PA
Posts: 1,576
Originally posted by TDog
Opti was changed at 70,000 miles...Spark plugs and wires were chagned at about 80,000 miles...Coil Wire has never been changed...

What exactly does an opti going out feel like...

Thanks,
TIM
when you replaced the coil you should have replaced the wire too, there only a couple of bucks
chasmanz28 is offline  
Old 05-12-2003, 12:08 AM
  #8  
Registered User
 
Join Date: Sep 2002
Posts: 247
i hope its something stupid and simple but i think its the opti from all the post i head read and all that, i mean it poored like hell a few days ago i drove home fine and the next damn the damn thing was bucking like a damn horse so im sure thats what it has to be and i dont know about arching wires or what this damn coil thing is everyone says might be dirty do i have to take off the opti to see this coil or what>?
Wildwill532 is offline  
Old 05-12-2003, 12:54 AM
  #9  
Registered User
 
Join Date: Feb 2003
Location: AR
Posts: 33
If you haven't already, you need to replace the coil wire. My dad's Ford F-150 had a bad coil wire. It was clicking and the truck had a bad miss. He took the coil wire off and both ends were black as hell and upon further inspection we noticed it was a spark plug wire and not a coil wire. We cleaned the cap and put on a new coil wire and it runs great. Oh, we also replaced the coil, but that's what we thought it was at first, and it didn't affect the way it ran.
O2Bsogood is offline  
Old 05-12-2003, 01:55 AM
  #10  
Registered User
 
Join Date: Sep 2002
Location: Staunton, Illinois
Posts: 656
when they say check for arching, they mean look under the hood in the dark. you may see some current or sparks under from one of the wires. at night, if you don't see sparks under there, they are not arching. it very well could be the opti. if the coil wire was never changed, that would be a good place to start. also, with you having 80K on your plugs/wires you may want to replace those also.
cals400ex is offline  
Old 05-12-2003, 06:50 AM
  #11  
Registered User
 
Join Date: Sep 2002
Posts: 247
do i have to take off the opti to check the coil wire you all are talking about i dont know what it even looks like?
Wildwill532 is offline  
Old 05-12-2003, 07:27 AM
  #12  
Registered User
Thread Starter
 
Join Date: Jan 2002
Location: Raleigh, NC
Posts: 274
I guess I'll just invest in an all around tune up...


New plugs, wires, opti, and coil wire...
Even if everything isn't bad...it'll have to be replaced eventually anyway...Everything has at least 80k miles on 'em....

Thanks guys,
TIM
TDog is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
dbusch22
Forced Induction
8
12-03-2018 03:54 PM
ch3vyb1gbl0ck
LT1 Based Engine Tech
11
01-28-2015 04:45 PM
Ari G
Parts For Sale
0
12-11-2014 03:21 PM
Dyoung_Z28
General 1967-2002 F-Body Tech
8
11-25-2014 05:26 PM


Thread Tools
Search this Thread
Quick Reply: Replaced Ignition Coil Still have Issue...


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

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.