Recent Topics
'00 Firebird oil change update.
by EricF
Today at 02:35 PM
Where to buy LE1605 in quarts?
by dedonderosa
Today at 02:05 PM
Flushing out previous "Stopleak" ?
by GoStumpy
Today at 01:29 PM
Free Oil changes at my Nissan dealer but no ester?
by racin4ds
Today at 12:44 PM
Redline D6 for '07 BMW 328xi
by typ901
Today at 12:38 PM
Shift Solenoid Pack on Dodge 41TE/A604
by Thermo1223
Today at 11:56 AM
1996 Civic Power Steering Fluid & Filter
by 01_celica_gt
Today at 11:50 AM
concoction to free up rusty transmission gears.
by Panzerman
Today at 11:30 AM
Brake Job 2000 RWD Chevy Astro
by actionstan
Today at 11:06 AM
A new car, from Boeing!
by expat
Today at 11:04 AM
PayPal fees
by Thermo1223
Today at 10:05 AM
5w30 vs SAE 30. Does SAE 30 have better chemistry?
by 2000Trooper
Today at 10:00 AM
Newest Members
and111, guzie, myrtlebeachrick, NTech, ImZIC
49675 Registered Users
Who's Online
76 registered (123Saab, and111, 440Magnum, actionstan, bdcardinal, 5 invisible), 2054 Guests and 188 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
49675 Members
64 Forums
212323 Topics
3328360 Posts

Max Online: 2651 @ 04/21/14 04:38 PM
Donate to BITOG

Topic Options
#3198158 - 11/25/13 09:00 PM could i have a problem with a new thermostat
locksmith Offline


Registered: 04/03/13
Posts: 18
Loc: North Jersey
on my 96 oldsmobile ciera 3.1 v6 i bought a new napa # 222 thermostat and installed it now it seems when i start it cold i get no heat sometimes and my temp gauge swings up to 3/4 semi fast then after some time it comes back down and then a few minutes later i get heat then sometimes the heat turns cold and the gauge starts going up again after running for over 25 minutes everything is good. the system is bled correctly could the brand new napa thermostat be bad? I changed the thermostat because the original was stuck open, i also replaced the water pump because it was starting to leak and there is a new radiator cap also.

Top
#3198184 - 11/25/13 09:19 PM Re: could i have a problem with a new thermostat [Re: locksmith]
actionstan Online   content


Registered: 05/22/13
Posts: 301
Loc: Ohio
I suppose anything is possible, but what you describe are classic symptoms of the system having air in it.. How did you verify the system has been bled correctly?

These 3.1s can be a real booger to get bled.. Believe me. Do a search on the web there are several recommendations on bleeding these, and mods that can help your cause.. Off the top of my head one that stuck out to me was drilling a small hole in the lip of the thermostat to allow easier bleeding.


Edited by actionstan (11/25/13 09:23 PM)
_________________________
1999 Saturn SL1
2013 KIA Forte

Top
#3198189 - 11/25/13 09:26 PM Re: could i have a problem with a new thermostat [Re: locksmith]
Chris142 Offline


Registered: 06/05/03
Posts: 10601
Loc: apple valley, ca
Ya theres 2bleeders on that car.
_________________________
02 Jeep Wrangler QS 5w30
87 F250 Diesel Delvac 15w40
04 Tahoe STHM 10w30
Z400 napa 15w50
KLR250 Maxima 10w40
Polaris Trailblazer Polaris 5w50

Top
#3198194 - 11/25/13 09:28 PM Re: could i have a problem with a new thermostat [Re: locksmith]
ram_man Offline


Registered: 03/15/13
Posts: 1333
Loc: southern mo
sounds like you have air in the system. I would drain the fluid remove bleeder and then with car off pour fluid back in and when it pours out of the bleeder you are done, reinstall bleeder and top off let run till warm with heater on and make sure its full and its al done.
_________________________
03 chrysler pt cruiser 50,000 miles
02 Saturn sl 125,000 miles
95 Dodge ram 1500 5.9l 183,000 miles
89 chevy c1500 5.7l 156,000 miles


Top
#3198220 - 11/25/13 09:54 PM Re: could i have a problem with a new thermostat [Re: locksmith]
oldhp Offline


Registered: 06/28/12
Posts: 701
Loc: Southern Illinois
Back the car in a ditch or jack up front of the car, gets the front of the engine tilted upwards to help bleed out the air. There should be two air bleeds. Don't worry about making a mess when bleeding system, doesn't hurt a thing.


Edited by oldhp (11/25/13 09:55 PM)
_________________________
2014 Silverado LT 4.3 work truck.
2012 Equinox 2.4-Wife's Ride


Top
#3198468 - 11/26/13 08:01 AM Re: could i have a problem with a new thermostat [Re: locksmith]
eljefino Online   content


Registered: 06/15/03
Posts: 22988
Loc: ME
If this trouble continues, drill a tiny hole in the flange of the thermostat. If you get an air bubble behind the pellet, it never sees heat and never opens.

Also, that hole will help generate a slight water current behind the stat, which will help tickle the pellet and keep it up to date with what's going on, temp wise. If, heaven forbid, you get a tiny amount of exhaust in your coolant due to a HG leak this hole will let that gas find its way out, too, and not cause future problems the next cold start. (Not saying you have this)

Top
#3198998 - 11/26/13 06:57 PM Re: could i have a problem with a new thermostat [Re: locksmith]
oldhp Offline


Registered: 06/28/12
Posts: 701
Loc: Southern Illinois
...and locate the drilled hole at the 12 o'clock position.
_________________________
2014 Silverado LT 4.3 work truck.
2012 Equinox 2.4-Wife's Ride


Top