1986 Bonneville 3.8 won't start? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Classics (Star Chief and 1957 to 1986) Converse about your Classic Bonneville.

Reply
 
 
 
Thread Tools Search this Thread
Old 02-12-2006, 09:35 PM   #1
Junior Member
Thread Starter
 
Join Date: Feb 2006
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
rockprince105 is on a distinguished road
Default 1986 Bonneville 3.8 won't start?

Hello, I currently own a 1986 will a 3.8 2bbl v6. Right now I cannot get the vehicle to start. Engine will try to start but dies immediately. I am getting fuel and spark. I was wondering if there is a computer somewhere that is not letting it start? I would greatly appreciate any help on what this problem might be! Thanks!
Matt
rockprince105 is offline   Reply With Quote
Old 02-13-2006, 11:03 AM   #2
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 Re: 1986 Bonneville 3.8 won't start?

Quote:
Originally Posted by rockprince105
Hello, I currently own a 1986 will a 3.8 2bbl v6. Right now I cannot get the vehicle to start. Engine will try to start but dies immediately. I am getting fuel and spark. I was wondering if there is a computer somewhere that is not letting it start? I would greatly appreciate any help on what this problem might be! Thanks!
Matt
Matt...being a carb'd model and are you getting fuel after the initial pump and is your choke working if needed? Both could cause you to be low of fuel to burn even though you are getting fuel.
BillBoost37 is offline   Reply With Quote
Old 02-13-2006, 11:06 AM   #3
Senior Member
True Car Nut
 
Join Date: Oct 2005
Location: Central Florida
Posts: 7,030
Thanks: 0
Thanked 0 Times in 0 Posts
lash is on a distinguished road
Default

Hi and welcome to BC!

Sorry for the delay in answering. I guess we don't have that many folks with experience with the older models that come on real often. A couple things:

There are so many things that you should check: Fuel filter, sensors (check fo good connections and whether they are working), clogged CAT? for starters. I don't know what you've tried.

Do you know how to pull codes on it?

Have you purchased a Chilton'* manual for it? If not, I recommend you do so, not only for help on this prblem, but for all future reference. The $15 or so is money well spent and you won't regret it.
lash is offline   Reply With Quote
Old 02-13-2006, 05:26 PM   #4
Junior Member
Thread Starter
 
Join Date: Feb 2006
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
rockprince105 is on a distinguished road
Default

I've tried pulling codes from it with using the proper code reading tool and the service engine soon light wouldn't even flash, it just stayed lit the whole time. Thats why I believe it might be a ECM problem but I never was sure. I cannot locate the computer and was wondering if anybody might no where it can be found?
The problem seems more ignition related then anything because the car is getting fuel to the carbeurator. The car is also looks like it is getting a healthy spark. I have tried using starting fluid and it didn't even make a difference. The car has 122k miles on it if it makes a difference. Thank you for the help!
Matt
rockprince105 is offline   Reply With Quote
Old 02-13-2006, 08:12 PM   #5
Mark Fahey
Guest
 
Posts: n/a
Default

Try removing the distributor cap and turning the engine over. If the rotor doesn't turn, you have a timing chain problem. I know you said the engine tries to start but it still may be worth a look.
  Reply With Quote
Old 02-17-2006, 09:40 AM   #6
Senior Member
Posts like a Corvette
 
Ol' Timer's Avatar
 
Join Date: Oct 2002
Location: New Jersey - Most of Our Elected Officials Have Not Been Indicted
Posts: 1,483
Thanks: 0
Thanked 0 Times in 0 Posts
Ol' Timer is on a distinguished road
Default

Quote:
Originally Posted by rockprince105
I've tried pulling codes from it with using the proper code reading tool and the service engine soon light wouldn't even flash, it just stayed lit the whole time. Thats why I believe it might be a ECM problem but I never was sure. I cannot locate the computer and was wondering if anybody might no where it can be found?
The problem seems more ignition related then anything because the car is getting fuel to the carbeurator. The car is also looks like it is getting a healthy spark. I have tried using starting fluid and it didn't even make a difference. The car has 122k miles on it if it makes a difference. Thank you for the help!
Matt
Fuel? Spark? No Start??? Are you SURE those Spark Plugs are Zzaping away? Anyway, the ECM is usually located behind the glove box up on the firewall. I wish I could tell you how to confirm IF it is the ECM. They usually don't die an unnatural death causing a No Start situation. Even ones that are 20+ years old. But, I've been wrong many times in the past. Good Luck and I hope you find your problem.
Ol' Timer is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Car just won't start-and windows won't roll down??? Jeff Jacobs 1992-1999 4 10-10-2017 06:42 AM
1994 Silhouette wipers won't start, or start and stop part way dancinmikeb Oldsmobile 1 11-04-2013 01:40 PM
1986 Bonnie Signal Lights shawna Classics (Star Chief and 1957 to 1986) 2 10-29-2004 02:52 PM
Woaw....Just drove a 1986 Mazda RX-7 smoosh Lounge 8 08-27-2004 02:16 PM
1986 or not? big_boss2010 General GM Chat 15 09-11-2003 01:13 AM


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 03:30 PM.


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.