I'm losing coolant, maybe head gasket? - Page 2 - 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 10-11-2010, 05:06 PM   #11
Retired Senior Admin

Expert Gearhead
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

There may be two plastic elbows, the other is below the alternator. There are also some of the bolts that hold the timing chain cover on that go in to the heads and are open to the cooling jacket. If for some reason one of those bolts fell out, it would run out of there. It'* very hard to see.
Danthurs is offline   Reply With Quote
Old 10-11-2010, 06:41 PM   #12
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Sep 2008
Posts: 90
Thanks: 0
Thanked 2 Times in 1 Post
Richardyuyu1 is on a distinguished road
Default

Danthurs I was thinking of putting some uv dye in the system and trying to see where the leak originates do you think that'll work?
Richardyuyu1 is offline   Reply With Quote
Old 10-11-2010, 06:50 PM   #13
Retired Senior Admin

Expert Gearhead
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

Never used it before, but it should help.
Danthurs is offline   Reply With Quote
Old 10-12-2010, 11:20 AM   #14
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

On your 98 NA motor you have one plastic coolant elbow entering the LIM. If this is leaking you should be able to see it.
The lower elbow is metal and part of the tensioner assembly. If this is leaking it should appear as a leak above and left of the water pump.
The bolts that hold the timing cover on, only go into the block. They do penetrate the cooling jacket. Just block though, not heads. If your leak is coming from under the water pump pulley area, that'* almost positively a water pump. Holler if you need a how to on doing it. The bracket can be fun.

Timing cover. Hole to left is where the lower coolant elbow enters. Hole under WP is the weep hole
BillBoost37 is offline   Reply With Quote
Old 10-12-2010, 09:37 PM   #15
Retired Senior Admin

Expert Gearhead
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

My bad, I meant cooling jacket, not head. I believe it'* the furthest right hole. I missed that one once and the coolant poured out of it.
Danthurs is offline   Reply With Quote
Old 10-13-2010, 08:25 AM   #16
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

Been there...taken that bath too. Ever wanna mess with a newbie..have them pull the bolt or two from their NA block where the SC idler pulley #9 sits. Those are cooling jacket too.
BillBoost37 is offline   Reply With Quote
Old 10-19-2010, 09:57 PM   #17
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Sep 2008
Posts: 90
Thanks: 0
Thanked 2 Times in 1 Post
Richardyuyu1 is on a distinguished road
Default

Thanks for the responses guys! I do have a question about leaking water pumps. I always thought they only leaked when the pump was rotating? My leak pops up when the engine is cold and I fill up the radiator with coolant. As soon as I start the car it stops leaking. And to add insult to injury tonight I started the car to see if the the water pump leaks I smell gas and notice the where the gas line meets the fuel rail closest to the firewall is leaking. I guess I'll start a new thread for that!
Richardyuyu1 is offline   Reply With Quote
Old 10-23-2010, 10:38 PM   #18
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Sep 2008
Posts: 90
Thanks: 0
Thanked 2 Times in 1 Post
Richardyuyu1 is on a distinguished road
Default

Today after I changed my tensioner pulley I started the car to see if the serpentine belt was tracking properly. I then noticed the water pump pully had a slight wobble and it sounds like the bearings are going bad. Tomorrow I'll take a look through the passenger side wheel well to see if the leak is coming from the pump(I hope it is).
Richardyuyu1 is offline   Reply With Quote
Old 10-23-2010, 11:08 PM   #19
Member
Posts like a V-Tak
 
jfrompa2000's Avatar
 
Join Date: Jan 2010
Location: Pittsburgh PA
Posts: 30
Thanks: 0
Thanked 0 Times in 0 Posts
jfrompa2000 is on a distinguished road
Default

yes when the waterpump bearings go bad and the pulley starts to wobble it will mostlikely be leaking coolant
jfrompa2000 is offline   Reply With Quote
Old 10-28-2010, 12:51 PM   #20
Member
Posts like a V-Tak
Thread Starter
 
Join Date: Sep 2008
Posts: 90
Thanks: 0
Thanked 2 Times in 1 Post
Richardyuyu1 is on a distinguished road
Default

I changed the pump on Monday,the old one was leaking really bad and the bearings were shot. I've been watching the coolant level for the past few days and it hasn't moved, so I would say problem solved. Thanks for the help guys!
Richardyuyu1 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
60degV6 question - head gasket repair, coolant questions da59a General GM Chat 21 02-15-2011 10:12 AM
1998, weird water issue (intake gasket or head gasket?) jtnc98 1992-1999 6 03-17-2009 08:14 PM
How can I diagnose a blown head gasket? Maybe LIM gasket? rstrunk 1992-1999 6 03-15-2009 10:24 PM
Cooant temp sensor? Maybe or maybe not.... SSEiGrl92 1992-1999 4 11-01-2007 10:27 PM
(warped head, new car hunt) head gasket on 88 voyager (2.5L) harofreak00 Lounge 47 02-01-2007 02:10 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 02:36 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.