Plenum replacement now no start !!!! - 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 08-22-2004, 01:09 PM   #1
Junior Member
Thread Starter
 
Join Date: Aug 2004
Location: Buffalo, NY
Posts: 4
Thanks: 0
Thanked 0 Times in 0 Posts
puckydude is on a distinguished road
Default Plenum replacement now no start !!!!

Help !!!

I originally had a leaking elbo on my intake and intermittant starting on my 97 Bonneville. To make a long story short, I have replaced the upper Plenum , had the Heads sent out for a valve job. After putting it all back together, it didi not start, no spark. I replaced the Crankshaft and Cam sensors. It started and ran rough, lots of white smoke which I attributed to the coolant than ran into the exhaust when the Plenium ruptured. I drove it 5-10 miles and when I shut it down(for 15-30 min.) it will not start. The weird thing is that the Power windows will not work. I checked all fuses and nothing is blown. Any help would be greatly appreciated.
puckydude is offline   Reply With Quote
Old 08-22-2004, 02:31 PM   #2
Junior Member
Thread Starter
 
Join Date: Aug 2004
Location: Buffalo, NY
Posts: 4
Thanks: 0
Thanked 0 Times in 0 Posts
puckydude is on a distinguished road
Default

I found the problem !! Would you beleive it was the Shorting Bar connection under the rug. What the F&%@ Now it is running, just have to hope the White smoke dissapates.
puckydude is offline   Reply With Quote
Old 08-22-2004, 03:50 PM   #3
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

What shorting bar? This is a new one on me. Another difference between the Series 1 and 2?

And did you drain the oil IMMEDIATELY after the upper plenum failure? I hope so.
willwren is offline   Reply With Quote
Old 08-22-2004, 05:16 PM   #4
Senior Member
Certified GM nut
 
Join Date: Feb 2004
Location: CT
Posts: 2,099
Thanks: 0
Thanked 1 Time in 1 Post
SSEBONNE4EVA is on a distinguished road
Default smoke

drain the oil as mentioned. if there is coolant present you may have to flush out the pan. By now the clylinders must be cleaned out. Did you replace the lower intake gaskets?
SSEBONNE4EVA is offline   Reply With Quote
Old 08-22-2004, 05:26 PM   #5
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

If you didn't drain the oil after the plenum failure, or didn't drain it soon enough, the damage is already done.
willwren is offline   Reply With Quote
Old 08-22-2004, 09:07 PM   #6
Junior Member
Thread Starter
 
Join Date: Aug 2004
Location: Buffalo, NY
Posts: 4
Thanks: 0
Thanked 0 Times in 0 Posts
puckydude is on a distinguished road
Default

:( Check out this site for info on the Shorting Bar. This came from another poster.
home.twcny.rr.com//kc2jga/
Also I did change the oil twice so far.
puckydude is offline   Reply With Quote
Old 08-22-2004, 09:48 PM   #7
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

Gotcha. I remember that. One note, slightly off topic:

You don't have to bench-test the fuel pump. There'* a test contact provided in the car for it to determine if it'* running, and also determine if the relay works right It'* a built in feature. If you have it, there'* a green single wire connector tucked behind your battery.
willwren is offline   Reply With Quote
Old 08-23-2004, 12:15 AM   #8
Senior Member
Posts like a Turbo
 
Join Date: Jul 2004
Location: Woodstock Ill.
Posts: 214
Thanks: 0
Thanked 0 Times in 0 Posts
Ranger is on a distinguished road
Default

Quote:
Originally Posted by puckydude
I found the problem !! Would you beleive it was the Shorting Bar connection under the rug. What the F&%@ Now it is running, just have to hope the White smoke dissapates.
Does the white smoke smell like gas? That is indicitive of a rich fuel condition (leaky injector(*) or a ruptured FPR diaphram.
Ranger is offline   Reply With Quote
Old 08-23-2004, 10:59 PM   #9
Junior Member
Thread Starter
 
Join Date: Aug 2004
Location: Buffalo, NY
Posts: 4
Thanks: 0
Thanked 0 Times in 0 Posts
puckydude is on a distinguished road
Default

I found my White Smoke problem. If you ever change your Plenum make sure you install the PVC, I never did and the intake was sucking all the oil out of the motor. I drained it today and it only had 1 1/2 qts in the pan. I had good oil pressure though. I changed the oil and ran it a good hour and it is all back to normal.

Just turned out to be a major job to replace my leaking elbo on the front of the manifold:

Sent the heads out for valve job and mill check( I thought I blew the Head gaskets)
Replaced the Plenum, original problem-ruptured.
Had 2 no start conditions, Crankshft and Camshaft sensor replaced. The second
was a no start, no power windows. This was from the corroded Shorting Bar or
Ground Bar under the drivers rug near the sill plate- danp and corroded.

This Board was a tremendous help and I have to thank you all. Cheers !!!
puckydude is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
2002 3800 no workie. Replaced plenum gasket, now won't run jonny m Chevrolet 10 05-27-2014 08:13 AM
02 PA Post Intake/Plenum replacement kanecats Buick 2 05-12-2012 10:29 PM
plenum replaced now tapping dianaokc 1992-1999 22 05-16-2009 07:55 PM
It died and won't start. Now have new motor and now this... '96BonnevilleL67 1992-1999 77 08-06-2007 06:50 PM
Intake Upper Plenum Manifold replacement found glorkar General GM Chat 7 04-05-2004 12:25 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 04:06 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.