Engine light flashes then stays on while pedal to the floor. - 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 10-30-2005, 02:28 AM   #1
Senior Member
Posts like a Northstar
Thread Starter
 
Join Date: Feb 2005
Location: Ocean County, New Jersey
Posts: 541
Thanks: 0
Thanked 0 Times in 0 Posts
asonofabeach69 is on a distinguished road
Default Engine light flashes then stays on while pedal to the floor.

Anyone have any ideas to why the engine light would come on when I put the pedal down all the way. The car studders violently, hesitiates and doesnt want to move any where. I am assuming its a bad misfire because the engine light will blink while it is happening and then stays on after that until i shut off the car. If anyone has any ideas to whats going on please inform me before I start changing everything. I also do wonder if this is also related to my bad transmission.
Thanks

So many problems w/ this car, So little patience.
asonofabeach69 is offline   Reply With Quote
Old 10-30-2005, 02:34 AM   #2
Senior Member
True Car Nut
 
Join Date: Jun 2004
Location: Rochester, NY (college)
Posts: 6,182
Thanks: 0
Thanked 0 Times in 0 Posts
corvettecrazy is on a distinguished road
Default

i'm going to go with a mis fire/bad plug wire
corvettecrazy is offline   Reply With Quote
Old 10-30-2005, 07:48 AM   #3
Senior Member
True Car Nut
 
Join Date: Oct 2002
Location: Groton, CT _NEBF 05, 06, 07_
Posts: 2,703
Thanks: 0
Thanked 0 Times in 0 Posts
markwb is on a distinguished road
Default Re: Engine light flashes then stays on while pedal to the fl

Quote:
Originally Posted by asonofabeach69
I am assuming its a bad misfire because the engine light will blink while it is happening and then stays on after that until i shut off the car.
We need DTC'*, you'll have to get a scanner on it to retrieve codes.
markwb is offline   Reply With Quote
Old 10-30-2005, 10:18 PM   #4
Senior Member
True Car Nut
 
Join Date: May 2003
Location: Holt, MI & Lima, OH
Posts: 3,022
Thanks: 0
Thanked 0 Times in 0 Posts
dbtk2 is on a distinguished road
Default

If the service engine light is flashing while you are driving, that means misfires. You don't need to scan with a scan tool to figure that out.

Shawn
dbtk2 is offline   Reply With Quote
Old 10-30-2005, 11:32 PM   #5
Senior Member
Posts like a Northstar
Thread Starter
 
Join Date: Feb 2005
Location: Ocean County, New Jersey
Posts: 541
Thanks: 0
Thanked 0 Times in 0 Posts
asonofabeach69 is on a distinguished road
Default

Well i tested the coils and they checked out ok. Tomorrow I will try to get to autozone to get them to check the code(*) for me. Next step i persume is to move on to the plugs and wires, both of which were changed this year but i guess they can still go bad.
asonofabeach69 is offline   Reply With Quote
Old 10-31-2005, 06:55 AM   #6
Senior Member
True Car Nut
 
Join Date: Oct 2002
Location: Groton, CT _NEBF 05, 06, 07_
Posts: 2,703
Thanks: 0
Thanked 0 Times in 0 Posts
markwb is on a distinguished road
Default

Quote:
Originally Posted by dbtk2
If the service engine light is flashing while you are driving, that means misfires.
Shawn
That'* right, then there are not any DTC'* set I guess?
markwb is offline   Reply With Quote
Old 10-31-2005, 07:11 AM   #7
Senior Member
True Car Nut
 
Join Date: Jan 2005
Location: Montevideo, MN MWBF '05, '06, '07 WCBF '06 '07 survivor
Posts: 3,882
Thanks: 0
Thanked 0 Times in 0 Posts
sonoma_zr2 is on a distinguished road
Default

Quote:
Originally Posted by markwb
Quote:
Originally Posted by dbtk2
If the service engine light is flashing while you are driving, that means misfires.
Shawn
That'* right, then there are not any DTC'* set I guess?
Yes, a code will be set.
sonoma_zr2 is offline   Reply With Quote
Old 10-31-2005, 08:28 AM   #8
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

Before buying wires. Look them over like NickS did recently. He found a hole was being worn into one of his by the fan.

Also... I see the NGK plugs, what kind of wires did you use?

The plug could have been cracked, however it is much more common for a wire to be breaking down. The way you described changing the coil and it running great for a while. Makes me think when you moved the wire it was better for a while, then reverted to it'* original position and started the problem again.
BillBoost37 is offline   Reply With Quote
Old 11-01-2005, 12:42 AM   #9
Senior Member
Posts like a Northstar
Thread Starter
 
Join Date: Feb 2005
Location: Ocean County, New Jersey
Posts: 541
Thanks: 0
Thanked 0 Times in 0 Posts
asonofabeach69 is on a distinguished road
Default

Went to autozone this afternoon after work, Im getting code P306 which is a misfire in the 6th cylinder. So now I know where to investigate.
asonofabeach69 is offline   Reply With Quote
Old 11-01-2005, 06:52 AM   #10
Senior Member
True Car Nut
 
Join Date: Oct 2002
Location: Groton, CT _NEBF 05, 06, 07_
Posts: 2,703
Thanks: 0
Thanked 0 Times in 0 Posts
markwb is on a distinguished road
Default Re: Engine light flashes then stays on while pedal to the fl

Quote:
Originally Posted by markwb
We need DTC'*, you'll have to get a scanner on it to retrieve codes.
This is what I was eluding to, codes. Good deal, now you have a basis with which to begin troubleshooting the misfre.
markwb is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
2004 Grand Prix GT airbag light flashes 6 times and then stays on lbrowne Pontiac 8 01-15-2012 06:05 PM
car dies while driving then wont start for a while..? help 88bonnsse 1987-1991 23 05-29-2007 10:30 PM
A/C Problems - Cold then HOT then Cold then Hot!!!!! nick s 1992-1999 13 04-22-2006 11:40 AM
Gas pedal, brake pedal position younghelio 1992-1999 1 03-19-2004 12:10 AM
temp light flashes skza 1992-1999 9 07-09-2002 04:30 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 06:16 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.