cylinder 1 misfire - 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 10-05-2009, 03:06 PM   #1
Junior Member
Thread Starter
 
Join Date: Jul 2009
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
Aredneckthing is on a distinguished road
Default cylinder 1 misfire

I have a 99 benneville se and the check engine light came on. I scanned it and i got the p0301 misfire cylinder 1. I replaced the plugs and wires I then erased the code to see if it would eventually come back on but it has not. My car now is sluggish and just does not want to get up and go. It also sounds like i have a vacuum leak. Help plz
Aredneckthing is offline   Reply With Quote
Old 10-05-2009, 03:21 PM   #2
Senior Member

True Car Nut
 
2kg4u's Avatar
 
Join Date: Sep 2006
Location: Windsor, Ontario / Detroit, Michigan
Posts: 4,804
Thanked 220 Times in 181 Posts
2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of
Default

Please put your car'* year and model into your signature line (User CP at top of this page, Edit Signature in menu on left of page that opens up) so we can best address your questions.

Is your car supercharged?

If you suspect a vacuum leak, get a spray can of carb cleaner and spray it around the vacuum connections, the EGR, etc. A change in idle speed when you spray an area is a sign of a vauum leak, and will help you focus in on it.
2kg4u is offline   Reply With Quote
Old 10-05-2009, 03:45 PM   #3
Junior Member
Thread Starter
 
Join Date: Jul 2009
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
Aredneckthing is on a distinguished road
Default

no its not super charged and i already tried the spray and couldnt find any
Aredneckthing is offline   Reply With Quote
Old 10-05-2009, 06:11 PM   #4
Senior Member

True Car Nut
 
2kg4u's Avatar
 
Join Date: Sep 2006
Location: Windsor, Ontario / Detroit, Michigan
Posts: 4,804
Thanked 220 Times in 181 Posts
2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of
Default

2kg4u is offline   Reply With Quote
Old 10-05-2009, 08:04 PM   #5
Junior Member
Thread Starter
 
Join Date: Jul 2009
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
Aredneckthing is on a distinguished road
Default

so you think it could be one of those sensors? but i dont have a ses light on or does it just come on when the sensor is completely bad?
Aredneckthing is offline   Reply With Quote
Old 10-05-2009, 10:27 PM   #6
Retired Senior Admin

Expert Gearhead
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

Pull the plugs and look close. Are any of them black? If so you have a combustion problem due to weak spark.
Danthurs is offline   Reply With Quote
Old 10-06-2009, 08:22 AM   #7
Junior Member
Thread Starter
 
Join Date: Jul 2009
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
Aredneckthing is on a distinguished road
Default

i replaced the plugs a few were black.
Aredneckthing is offline   Reply With Quote
Old 10-06-2009, 09:09 AM   #8
Senior Member

True Car Nut
 
2kg4u's Avatar
 
Join Date: Sep 2006
Location: Windsor, Ontario / Detroit, Michigan
Posts: 4,804
Thanked 220 Times in 181 Posts
2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of2kg4u has much to be proud of
Default

You should still use the procedures I posted earlier, but you should also check your ignition coils.

https://www.gmforum.com/t278818/
2kg4u is offline   Reply With Quote
Old 10-06-2009, 09:45 PM   #9
Retired Senior Admin

Expert Gearhead
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

The black ones have a weak spark. That comes from a weak or bad coil, bad or weak plug wire, or worn plugs.
Danthurs is offline   Reply With Quote
Old 10-08-2009, 02:35 PM   #10
Junior Member
Thread Starter
 
Join Date: Jul 2009
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
Aredneckthing is on a distinguished road
Default

I tested the coils and everything was fine with them. I guess im just stuck on how my car wont get up and go and is so sluggish. No ses light comes on either.
Aredneckthing is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Cylinder Misfire, Head Gasket? lancer 1992-1999 7 10-04-2006 11:30 PM
Random/multiple misfire, cylinder # 3 zeroburnz 1992-1999 33 04-06-2006 11:57 PM
Check Engine Light- Diag-MisFire Cylinder#3/Oil Pressure ? fantascp 1992-1999 7 03-03-2006 10:49 AM
Misfire in cylinder 5 CrimsonJ 1992-1999 21 02-23-2006 11:32 AM
Grand Am Cylinder 3 Misfire Code Adam Lounge 3 12-20-2005 09:58 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 01:27 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.