Need Help . Car won't start. - FIXED - Page 3 - 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 03-11-2008, 12:05 AM   #21
Senior Member
Certified GM nut
 
Join Date: Oct 2005
Location: Western New York
Posts: 1,942
Thanks: 0
Thanked 0 Times in 0 Posts
Technical Ted is on a distinguished road
Default

Just went out & started my son'* 99 with TPS unplugged. Then unplugged MAF & started with both sensors disconnected.
Technical Ted is offline   Reply With Quote
Old 03-11-2008, 12:39 AM   #22
Senior Member
Posts like a Supercharger
Thread Starter
 
Join Date: Oct 2006
Location: Brooklyn, NY
Posts: 152
Thanks: 0
Thanked 0 Times in 0 Posts
Vas62 is on a distinguished road
Default

Quote:
Originally Posted by Technical Ted
Just went out & started my son'* 99 with TPS unplugged. Then unplugged MAF & started with both sensors disconnected.
Thank you for info.
It will save me some time to look elsewhere than into TPS and MAF
But honestly no idea where else to look.
If sparks and fuel will be present,thenI'm lost so far.
Vas62 is offline   Reply With Quote
Old 03-11-2008, 01:20 AM   #23
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

Don't rule out those sensors until the scantool says they're good.
willwren is offline   Reply With Quote
Old 03-11-2008, 01:23 AM   #24
Senior Member
Certified GM nut
 
Join Date: Oct 2005
Location: Western New York
Posts: 1,942
Thanks: 0
Thanked 0 Times in 0 Posts
Technical Ted is on a distinguished road
Default

I'd go ahead and check for spark & fuel injector pulse. That'll pretty much rule out some how blowing a fuse.

I remember an old post where someone had coolant leaking into the intake after doing some engine work. IIRC he didn't all the old gasket off before putting the throttle body back on. Make sure the coolant sensor didn't somehow get unplugged. The only other things I can think of is a large vacuum leak or a problem with the IAC.

PS - Others have reported their engines not starting with the MAF disconnected. I have no idea why some would start & others wouldn't.
Technical Ted is offline   Reply With Quote
Old 03-11-2008, 01:29 AM   #25
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

The coolant sensor UNDER the TB in the end of the LIM can prevent a start in certain temperature conditions. The one BEHIND the TB controls the gauge and has no effect on performance or PCM.
willwren is offline   Reply With Quote
Old 03-11-2008, 01:31 AM   #26
Senior Member
Posts like a Supercharger
Thread Starter
 
Join Date: Oct 2006
Location: Brooklyn, NY
Posts: 152
Thanks: 0
Thanked 0 Times in 0 Posts
Vas62 is on a distinguished road
Default

I 'm suspecting I didn't tight enough one of the bolts on TB.
The one tha goes with bracket for cables.
I was screwing it in and it was going not easy as two others.
I was afraid not to ruin it and maybe gasket has some vacuum leak and that srewing start up?
Anyway I'm planning to take TB out again tomorrow after checking spark,visual inspection of spark plugs and scanning sensors.
I have to recheck is surfase of TB was clean enough for new gasket .
I've read somevhere here it was an issue when old gasket wasn't removed properly and it caused vacuum leak and coolant into cylinder.
But in my case wacuum pump isn't powered.No belt on it.
And when I was removing TB there was not even a drop of coolant,so I don't know if that a case,but I don't think something just suddenly broke right after TB cleaning.
Low probability,but possible too.
Vas62 is offline   Reply With Quote
Old 03-11-2008, 01:39 AM   #27
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

You just explained your starting problem and your coolant leak.

Make sure you don't cross-thread the supercharger with that stud. They should be torqued according to the data in Techinfo/Specifications (link at the top of the page).
willwren is offline   Reply With Quote
Old 03-11-2008, 01:44 AM   #28
Senior Member
Posts like a Supercharger
Thread Starter
 
Join Date: Oct 2006
Location: Brooklyn, NY
Posts: 152
Thanks: 0
Thanked 0 Times in 0 Posts
Vas62 is on a distinguished road
Default

I was going to say water pump instead of vacuum pump.
Don't know whatI was thinking when typing . LOL
I think I don't have coolant leak because there is no water pump working and no circulation.of coolant. Or maybe it gets into cylinders somehow.
Vas62 is offline   Reply With Quote
Old 03-11-2008, 09:00 AM   #29
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

When you turn the key, the water pump turns.

Please fix your TB and come back with an update.
willwren is offline   Reply With Quote
Old 03-11-2008, 01:10 PM   #30
Senior Member
Posts like a Supercharger
Thread Starter
 
Join Date: Oct 2006
Location: Brooklyn, NY
Posts: 152
Thanks: 0
Thanked 0 Times in 0 Posts
Vas62 is on a distinguished road
Default

Yes,there was coolant in TB and I guess it was trying to fire up antifreese. I just reinstalled everything.Cleaned perfectly before installing gasket.
Battery was too week.
I cranked for few second.
It was about to catch but I guess it needs a little longer to blow all crap from cylinders.
Battery is charging and I'm out to remove accessory bracket.
Will post later when it fires up. (I hope)
Vas62 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
Car won't start... Need help. anathema05 1992-1999 14 11-10-2009 10:46 PM
1999 wiring issues - won't start - need fixed today - help! Sevensecondsuv Everything Electrical & Electronic 13 05-06-2008 10:36 AM
Merry Christmas! My car won't start!- Update: Fixed... Sully1742 1992-1999 19 12-27-2005 09:27 PM
Help!! 95 SE Won't Upshift at WOT-Now Won't Run-Fixed!!! 95BlkBonnieSE 1992-1999 13 04-06-2005 06:27 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 10:35 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.