I'm i doing this right? - ZR-1 Net Registry Forums

shaynezrl · 05-31-2009

Hey guys,

I got around to put a new 160 degree thermostat in today. I also put in the new chip recalibrated from Marc. After everything is done and i top off the coolant fire up the engine. The temp gauge went to 260!!!. Then i turn it off let the car cool down , then fire it up again. The temp gauge once again went up to 260. Is there anything else i need to do? Did i miss a step? I just left it alone for now. Thanks in advanced.

Shayne

VetteMed · 05-31-2009

You probably have an air pocket in the cooling system. Supposedly, if the right side of the car is lifted up, while filling, the air pocket will be able to dissipate...

tomtom72 · 05-31-2009

Check out this write up by Marc Haibeck, here is a link to the page at his site. It's the second to the bottom of the list of articles. It's a pfd download.

http://www.zr1specialist.com/HAT%20W...es%20index.htm

Tom

Aurora40 · 05-31-2009

It jumps up that high fairly quickly? Or as it is warming up, it never stops? Sounds like the not-full thing, but since you did change the thermostat, I guess I'd want to make sure it was functional and installed correctly too.

Also, and no offense, but can you do something about your signature? It's pretty huge with those pictures in it.

shaynezrl · 05-31-2009

Quote:

Originally Posted by Aurora40

It jumps up that high fairly quickly? Or as it is warming up, it never stops? Sounds like the not-full thing, but since you did change the thermostat, I guess I'd want to make sure it was functional and installed correctly too.

Also, and no offense, but can you do something about your signature? It's pretty huge with those pictures in it.

sorry it was kinda big ..thanks everyone i will give it try again today.

shayne

shaynezrl · 06-01-2009

Today i fire the engine one more time it slowly creep up to 220 then finally the red low coolant light came on. I turned off the engine let cool fill up with water. Turn on engine again then the temp stay at 130 or 140.

Thank you everyone for the advice, really appreciated.

Shayne

06-01-2009

Shayne, when I am filling, I fill the car up as much as possible with out it running. I then start the car and immediately start adding fluid. It should constantly purge and be shooting out air bubbles into the upper reservoir. I did recently have a 90 car that was a bear, it never pegged the gauge or got close, it just was not purging the air. Squeezing the coolant tubes helps as well to flush an air bubble out.

vettn71 · 06-01-2009

Now there's one I've never heard before. I'll have to try squeezing the hoses next time I have to pull the plenum (Did I just say that?)

Jim

scottfab · 06-01-2009

Shayne next time try this. If you had just pulled the plenum just leave
the little hose disconnected at the plenum on the front driver's side.
As you fill the air will escape there allowing you to fill better.
When you see fluid topping out at the fill resevoir and not going
down any more you're there.

shaynezrl · 06-02-2009

Well i have to admit that my heart was beating little bit faster, when i saw the temp gauge went up that fast. Thinking that i screwed it up..i quickly shuts off the engine. WOW..you guys sure know these cars and the tricks. Jeff that is a good trick never thought of it. Coolant flow to so many location in these motor. I gotta remember the little nipple on the plenum as well. Heck on my other car i just fill, close the cap and be on with it. But this an Lt5.

Thank you everyone heat is beating normal once again.

Shayne

05-31-2009	#1
shaynezrl Join Date: Jan 2008 Location: antioch Posts: 167	I'm i doing this right? Hey guys, I got around to put a new 160 degree thermostat in today. I also put in the new chip recalibrated from Marc. After everything is done and i top off the coolant fire up the engine. The temp gauge went to 260!!!. Then i turn it off let the car cool down , then fire it up again. The temp gauge once again went up to 260. Is there anything else i need to do? Did i miss a step? I just left it alone for now. Thanks in advanced. Shayne __________________ 1991 ZR1= Top end ported and heads Stainless headers Viper 4:10 Corsa exhaust Stainless work headers Haibeck tuned chip 2008 duramax ccsb 4x4= built Allison tranny, airdogII 165, Atp efi live stage 2 tunes, Afe ci intake, Atp egr delete, dpf delete, 5" diamond exhaust, and down pipe. 6" lift with 20x9 eagle alloy wrapped 35x12.5x20 Toyo trailgrabbler. 635hp 980tq :-D

05-31-2009	#2
VetteMed Join Date: Mar 2009 Location: Orlando, FL Posts: 1,828	Re: I'm i doing this right? You probably have an air pocket in the cooling system. Supposedly, if the right side of the car is lifted up, while filling, the air pocket will be able to dissipate...

05-31-2009	#3
tomtom72 Join Date: Dec 2004 Location: Jacksonville, FL USA Posts: 4,645	Re: I'm i doing this right? Check out this write up by Marc Haibeck, here is a link to the page at his site. It's the second to the bottom of the list of articles. It's a pfd download. http://www.zr1specialist.com/HAT%20W...es%20index.htm Tom __________________ 1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member

05-31-2009	#4
Aurora40 Join Date: May 2005 Location: Leesburg, VA Posts: 2,713	Re: I'm i doing this right? It jumps up that high fairly quickly? Or as it is warming up, it never stops? Sounds like the not-full thing, but since you did change the thermostat, I guess I'd want to make sure it was functional and installed correctly too. Also, and no offense, but can you do something about your signature? It's pretty huge with those pictures in it. __________________ Bob Saveland Former owner of #2517 [IMG]http://a.random-image.net/aurora40/vette.jpg[/img]

06-01-2009	#6
shaynezrl Join Date: Jan 2008 Location: antioch Posts: 167	Re: I'm i doing this right? Today i fire the engine one more time it slowly creep up to 220 then finally the red low coolant light came on. I turned off the engine let cool fill up with water. Turn on engine again then the temp stay at 130 or 140. Thank you everyone for the advice, really appreciated. Shayne

06-01-2009	#7
Jeffvette Guest Posts: n/a	Re: I'm i doing this right? Shayne, when I am filling, I fill the car up as much as possible with out it running. I then start the car and immediately start adding fluid. It should constantly purge and be shooting out air bubbles into the upper reservoir. I did recently have a 90 car that was a bear, it never pegged the gauge or got close, it just was not purging the air. Squeezing the coolant tubes helps as well to flush an air bubble out.

06-01-2009	#8
vettn71 Join Date: Oct 2008 Location: Colleyville, TX Posts: 272	Re: I'm i doing this right? Now there's one I've never heard before. I'll have to try squeezing the hoses next time I have to pull the plenum (Did I just say that?) Jim

06-01-2009	#9
scottfab Join Date: Jan 2009 Location: Portland Oregon metro area (Washington side) Posts: 3,207	Re: I'm i doing this right? Shayne next time try this. If you had just pulled the plenum just leave the little hose disconnected at the plenum on the front driver's side. As you fill the air will escape there allowing you to fill better. When you see fluid topping out at the fill resevoir and not going down any more you're there. __________________ Scott Vett owner since 1979._It's about the car and the people

06-02-2009	#10
shaynezrl Join Date: Jan 2008 Location: antioch Posts: 167	Re: I'm i doing this right? Well i have to admit that my heart was beating little bit faster, when i saw the temp gauge went up that fast. Thinking that i screwed it up..i quickly shuts off the engine. WOW..you guys sure know these cars and the tricks. Jeff that is a good trick never thought of it. Coolant flow to so many location in these motor. I gotta remember the little nipple on the plenum as well. Heck on my other car i just fill, close the cap and be on with it. But this an Lt5. Thank you everyone heat is beating normal once again. Shayne

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