Lesabre Hard start after sitting a while! - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Buick When starting new posts, please specify YEAR, MAKE, MODEL, ENGINE type, and whatever modifications you have made.

Reply
 
 
 
Thread Tools Search this Thread
Old 03-02-2004, 04:12 PM   #1
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Mar 2003
Posts: 419
Thanks: 0
Thanked 0 Times in 0 Posts
95neongirl is on a distinguished road
Default Lesabre Hard start after sitting a while!

I am trying to trace a hard start problem on my 94 lesabre, it alsmot always start ont he second try but what could be the culprit? It never dies and once it warms it starts as normal until it has had time to cool off any ideas? thanks
95neongirl is offline   Reply With Quote
Old 03-02-2004, 04:14 PM   #2
Senior Member
Posts like a Camaro
 
Join Date: Jan 2004
Posts: 1,166
Thanks: 0
Thanked 1 Time in 1 Post
mkaake is on a distinguished road
Default

completely random guess based on my limited experience with no start probles on series 1 (you did say 94, right? feelin kinda lazy right now)... on my mom'* car, it ended up being a combo of spark modules and the ICM...

matt
mkaake is offline   Reply With Quote
Old 03-02-2004, 04:21 PM   #3
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Mar 2003
Posts: 419
Thanks: 0
Thanked 0 Times in 0 Posts
95neongirl is on a distinguished road
Default

Icm as in the ecm? spark modules as in ignition modules? thanks
95neongirl is offline   Reply With Quote
Old 03-02-2004, 04:40 PM   #4
Senior Member
Certified Car Nut
 
Join Date: Jul 2003
Location: Robbinsdale, MN
Posts: 15,408
Thanks: 0
Thanked 0 Times in 0 Posts
MOS95B is on a distinguished road
Default

Fuel Pressure regulator..... Mine did the exact same thing til I changed that out.....
MOS95B is offline   Reply With Quote
Old 03-02-2004, 08:14 PM   #5
Senior Member
Posts like a Camaro
 
Join Date: Dec 2003
Location: Massachusetts
Posts: 1,019
Thanks: 0
Thanked 0 Times in 0 Posts
CFoote is on a distinguished road
Default

I had a very similar issue on a Series 1 and it turned out to be the ignition coils.
CFoote is offline   Reply With Quote
Old 03-02-2004, 09:39 PM   #6
Senior Member
Posts like a Camaro
 
Join Date: Jan 2004
Posts: 1,166
Thanks: 0
Thanked 1 Time in 1 Post
mkaake is on a distinguished road
Default

Quote:
Originally Posted by 95neongirl
Icm as in the ecm? spark modules as in ignition modules? thanks
sorry... was a little lazy and in a hurry when i wrote that (nice combo, eh?)

ICM=ignition control module - expensive black thing underneat the

coilpacks (which is what i really meant to say when i said spark modules).

not too common for those to go bad though - it was just a really weird case with my mom'* car...

so in short *cough* i'm probably just wasting your time...

*sorry*!

matt
mkaake is offline   Reply With Quote
Old 03-03-2004, 03:28 PM   #7
Senior Member
True Car Nut
 
Join Date: Sep 2002
Location: Chicago, IL
Posts: 2,409
Thanks: 0
Thanked 1 Time in 1 Post
acg_ssei is on a distinguished road
Default

Quote:
Originally Posted by MOS95B
Fuel Pressure regulator..... Mine did the exact same thing til I changed that out.....
I was thinking the same thing... although my experience has always been that it'* the warm starts that are the hardest, not the cold ones.

In any event, it might be interesting, with the engine off, to pull off the vacuum line at the fuel pressure regulator (little can-shaped object at one end of the fuel rail) and see if it pees gasoline out the vacuum port. If so, replace it; the leak is being snorked up by the vacuum line and swamping the idle control systems.
acg_ssei is offline   Reply With Quote
Old 03-03-2004, 08:50 PM   #8
Junior Member
 
Join Date: Aug 2002
Posts: 0
Thanks: 0
Thanked 0 Times in 0 Posts
Custom88 is on a distinguished road
Default

On my 88 Lesabre I had the exact same problem. My problem was that the ICM went bad. I opened it up inside, and the green coolant packs that are in it (a gel) had leaked out, cuasing the comptuer chips inside to actualy burn and melt together. You could try and take your coilpacks off the top of your ICM by removing the 6 bolts to see if your ICm is leaking the green 'coolant' or not.
Custom88 is offline   Reply With Quote
Old 03-24-2004, 03:29 PM   #9
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Mar 2003
Posts: 419
Thanks: 0
Thanked 0 Times in 0 Posts
95neongirl is on a distinguished road
Default

if it were the fuel pressure regulator it would leak when i took the hose off right? I get no leaks...i changed the plugs/wires and the fuel filter still the same problem when it is cold or when it has sat for a while it starts hard..

it always starts on the second try as thought the gas is not there until i try it the second time

note on really hot days it starts faster than in the early mornings or on cold days I will look at the icm this weekend thanks
95neongirl is offline   Reply With Quote
Old 03-24-2004, 06:02 PM   #10
Senior Member
Posts like a Turbo
Thread Starter
 
Join Date: Mar 2003
Posts: 419
Thanks: 0
Thanked 0 Times in 0 Posts
95neongirl is on a distinguished road
Default

also these codes were pulled on the car

codes were pulled on my car and I think it was po604 which reads as this

Internal Control Module Random Access Memory (RAM) Error as he said it had something to do with the pcm....what could cause that code and how to fix it?

the mechanic said it would be fixed with a new pcm i purchased one and replaced it but the code is still there what else could cause this code? thanks
95neongirl is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
92 88 won't restart after sitting. Cold start fine, imediate restart fine chevjerico Oldsmobile 8 05-27-2013 12:07 AM
Hard to steer while turning left while braking erin0525 2000-2005 9 12-11-2007 09:31 PM
car dies while driving then wont start for a while..? help 88bonnsse 1987-1991 23 05-29-2007 10:30 PM
hard start after sitting 96 bonneville se 3800 motor integrator1 1992-1999 3 10-16-2006 10:18 PM
Buick Lesabre Hard start after sitting Always! 95neongirl Buick 2 01-19-2005 06:56 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 08:28 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.