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October 16th, 2006, 03:31 PM
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Made Member
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Join Date: Mar 2006
Location: Illinois
Posts: 120
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Super Low Engine Temp
With the weather getting cold around here lately, I've been noticing something in the CRX. It takes a really long time for the engine to reach operating temp - according to the temp gauge. I'm talking like over 15 minutes of continous driving. Then, this weekend on my return trip home from emissions testing I looked down to see the temp gauge all the way at the bottom. I turned the heat off, and it came up a little. The outside temp was near 40 and I was traveling 50mph or so.
What could be the cause of this? I don't beleive it's a bad gauge because the temperature will flucuate. It seems to work normal when it's warm outside. The radiator doesn't look like anything special, in fact it looks pretty old. What are your guys' thoughts?
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2001 Prelude SH
1990 CRX Si
Hondas are an addiction
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October 16th, 2006, 03:32 PM
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Electric Sheep
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Join Date: May 2006
Location: Ohio
Posts: 881
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does it quit blowing heat when the temp gauge falls? Sounds like you have a stuck thermostat.
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October 16th, 2006, 03:35 PM
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Hells Wind Staff
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Join Date: Mar 2006
Location: City of Saint Joseph
Posts: 303
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on my integra when cruising on the freeway and my heater full blast i can see my temp gauge go down to near zero. i think its an artificially influenced condition from having the heater core fully open. i doubt the water temp is actually that cold, judging from the engine stil being as hot as it usually is after a normal drive.
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October 16th, 2006, 03:37 PM
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Made Member
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Join Date: Mar 2006
Location: Illinois
Posts: 120
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Quote:
Originally Posted by ATISTANG
does it quit blowing heat when the temp gauge falls? Sounds like you have a stuck thermostat.
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I didn't notice a drop in heat from the vents. But, the engine is still hot, just like with Striation's integra.
__________________
2001 Prelude SH
1990 CRX Si
Hondas are an addiction
Last edited by Juicy19; October 16th, 2006 at 03:46 PM..
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October 16th, 2006, 04:09 PM
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Super Moderator
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Join Date: Mar 2006
Location: Gs-R-less in New York.
Posts: 1,081
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possible thermostat being open longer or stuck open or it could be the heater core. check both of them out.
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October 16th, 2006, 04:17 PM
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Moderator
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Join Date: Mar 2006
Location: Chicago
Posts: 1,718
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you could also partially block your radiator to prevent some of the cooling on that. Cardboard works well.
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October 16th, 2006, 04:51 PM
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Made Member
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Join Date: Mar 2006
Location: Illinois
Posts: 120
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Quote:
Originally Posted by A_White_Gs-R
possible thermostat being open longer or stuck open or it could be the heater core. check both of them out.
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What would I be looking for? How bad of a problem are either of these?
Quote:
Originally Posted by njn63
you could also partially block your radiator to prevent some of the cooling on that. Cardboard works well.
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It actually had a piece of cardboard in front of the radiator when I bought it. I pulled it out because I found it in the summer. I wasn't thinking too far ahead.
__________________
2001 Prelude SH
1990 CRX Si
Hondas are an addiction
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October 16th, 2006, 05:12 PM
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CRXus Maximus Arelues
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Join Date: Mar 2006
Location: North West NJ
Posts: 2,111
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thermostat is either stuck wide open or is missing all together.
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October 16th, 2006, 07:38 PM
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Super Moderator
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Join Date: Mar 2006
Location: Gs-R-less in New York.
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Quote:
Originally Posted by Juicy19
What would I be looking for? How bad of a problem are either of these?
It actually had a piece of cardboard in front of the radiator when I bought it. I pulled it out because I found it in the summer. I wasn't thinking too far ahead.
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Not that big a problem but you may want to have it looked at. you can pull the top hose out from the engine and the thermo should be in there you can check it and then the heater core should be near the firewall towards the bottom.
Quote:
Originally Posted by jadkar
thermostat is either stuck wide open or is missing all together.
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Coud be stuck open but i doubt missing.
did you have this problem in the summer??
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October 16th, 2006, 07:49 PM
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Electric Sheep
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Join Date: May 2006
Location: Ohio
Posts: 881
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Quote:
Originally Posted by A_White_Gs-R
Not that big a problem but you may want to have it looked at. you can pull the top hose out from the engine and the thermo should be in there you can check it
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Its on the back side of the engine where the lower hose connects on D series |
October 16th, 2006, 08:08 PM
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CRXus Maximus Arelues
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Join Date: Mar 2006
Location: North West NJ
Posts: 2,111
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Glad to see you guys are using the multi-quote button 
As far as the thermostat being taken out all together. I have personally never seen this but Jeff says he has all the time. |
October 16th, 2006, 08:33 PM
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Electric Sheep
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Join Date: May 2006
Location: Ohio
Posts: 881
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Quote:
Originally Posted by jadkar
Glad to see you guys are using the multi-quote button
As far as the thermostat being taken out all together. I have personally never seen this but Jeff says he has all the time. |
rednecks do it a lot  |
October 16th, 2006, 10:52 PM
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Boost Ninja
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Join Date: Mar 2006
Location: NoVa
Posts: 520
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Geez...my car does this too but I didn't think anything was wrong. I just make sure the fluid level's all the way up and I still get heat.
I'll have to check for my T-Stat this weekend.
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October 17th, 2006, 09:58 AM
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Super Moderator
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Join Date: Mar 2006
Location: Gs-R-less in New York.
Posts: 1,081
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bruce as you can tell im not to familiar with the d-series motor.
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October 17th, 2006, 10:35 AM
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Made Member
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Join Date: Mar 2006
Location: Illinois
Posts: 120
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Quote:
Originally Posted by ATISTANG
Its on the back side of the engine where the lower hose connects on D series
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Thanks! I'll have to take a look at that when I get a chance. 
Quote:
Originally Posted by A_White_Gs-R
did you have this problem in the summer??
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No, in the summer the engine seemed to be at normal operating temp.
Thanks for everybody's comments. This is a great help!
__________________
2001 Prelude SH
1990 CRX Si
Hondas are an addiction
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October 17th, 2006, 10:53 AM
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Electric Sheep
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Join Date: May 2006
Location: Ohio
Posts: 881
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Quote:
Originally Posted by A_White_Gs-R
bruce as you can tell im not to familiar with the d-series motor.
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as I'm not with a b series  |
October 17th, 2006, 11:29 AM
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Super Moderator
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Join Date: Mar 2006
Location: Gs-R-less in New York.
Posts: 1,081
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Quote:
Originally Posted by ATISTANG
as I'm not with a b series |
In that case you should buy my b-series motor and become familiar with it. If you buy my motor it comes with a free car. Check my thread in the classifieds.
Ive only had one d-series honda in my whole life and it was a 89 civic hatch with the 4sp manual transmission.
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October 17th, 2006, 11:34 AM
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Electric Sheep
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Join Date: May 2006
Location: Ohio
Posts: 881
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Quote:
Originally Posted by A_White_Gs-R
In that case you should buy my b-series motor and become familiar with it. If you buy my motor it comes with a free car. Check my thread in the classifieds.
Ive only had one d-series honda in my whole life and it was a 89 civic hatch with the 4sp manual transmission.
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my rex has a 4spd right now  |
October 20th, 2006, 02:34 PM
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Ultimate Shield
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Join Date: Mar 2006
Location: Charleston, Ar.
Posts: 252
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Quote:
Originally Posted by ATISTANG
rednecks do it a lot |
Hey now!!! I always run with a thermostat.
If you do in fact have a good thermostat, change you water temp sensor. It is under the dizzy...two prong connection.
Last edited by ARKANSASCRX; October 20th, 2006 at 02:36 PM..
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October 20th, 2006, 04:56 PM
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Made Member
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Join Date: Mar 2006
Location: Illinois
Posts: 120
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Quote:
Originally Posted by ATISTANG
Its on the back side of the engine where the lower hose connects on D series
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So the thermostat is on the bottom of the block? Is coolant going to spill out everywhere when i take this off?
__________________
2001 Prelude SH
1990 CRX Si
Hondas are an addiction
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