Tech / General Engine Is your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!
Sponsored by:
Sponsored by: CARiD

Overheating a little

Thread Tools
 
Search this Thread
 
Old Apr 14, 2013 | 04:54 PM
  #1  
DerekMitchell's Avatar
Thread Starter
Junior Member
 
Joined: Apr 2012
Posts: 35
Likes: 0
From: Iowa
Car: 1991 Camaro Z28
Engine: 305 TPI
Transmission: T-5
Overheating a little

So I have began to overheat slightly.

Im constantly paranoid with my engine heat.

It has been going at 220 with the heat on all the way up, which seems high to me. But if the heat is off it will continue to climb and climb.



Now the previous owner said that he thought the air dam was broken, I believe that is the plastic piece under the bumper that shoves air up into he radiator? Correct me if im wrong.

Now I found this little piece. http://www.moderndaymuscle.com/inc/sdetail/163/793

Would that be what I needed?

The second thing I have considered is water pump, even though there is no leaking or anything. Just kinda over heats, also the amount of coolant seems good.

Thanks guys.
Reply
Old Apr 14, 2013 | 05:46 PM
  #2  
sofakingdom's Avatar
Supreme Member
20 Year Member
Community Builder
iTrader: (1)
 
Joined: Sep 2005
Posts: 27,819
Likes: 2,406
Car: Yes
Engine: Usually
Transmission: Sometimes
Axle/Gears: Behind me somewhere
Re: Overheating a little

First, that's not "overheating".

Second, the factory gauge isn't "accurate". Mostly it's just eye candy. About all it's good for is, telling the operator that it's all of a sudden different from what it's "always been"; if the car drives around just fine for however many years and then it SUDDENLY changes, it means something might have just broke.

Third, if it's the gauge, the gauge itself isn't the source of the inaccuracy; the sending unit usually is. Just change that out. It's right between the #1 & #3 spark plugs, costs MAYBE $10, and takes about 30 seconds to change if you're as slow as me (I doubt that... about everybody is faster) not counting draining & refilling the coolant.

Fourth, if it REALLY IS getting above that temp, and doesn't cool down when moving, and you DON'T have the air dam, then it's CRITICAL that you get one in there. You're right, it's a sort of plastic blade about 4-5" tall that goes right below the rad; its purpose is to create a high-pressure area in front of the rad to force air to go through it, and a low-pressure zone right behind it (JUST as important as the high-pressure zone, IF NOT MORE SO) to give the air a place to go after it passes through.
Reply
Old Apr 15, 2013 | 11:49 AM
  #3  
DerekMitchell's Avatar
Thread Starter
Junior Member
 
Joined: Apr 2012
Posts: 35
Likes: 0
From: Iowa
Car: 1991 Camaro Z28
Engine: 305 TPI
Transmission: T-5
Re: Overheating a little

Originally Posted by sofakingdom
First, that's not "overheating".

Second, the factory gauge isn't "accurate". Mostly it's just eye candy. About all it's good for is, telling the operator that it's all of a sudden different from what it's "always been"; if the car drives around just fine for however many years and then it SUDDENLY changes, it means something might have just broke.

Third, if it's the gauge, the gauge itself isn't the source of the inaccuracy; the sending unit usually is. Just change that out. It's right between the #1 & #3 spark plugs, costs MAYBE $10, and takes about 30 seconds to change if you're as slow as me (I doubt that... about everybody is faster) not counting draining & refilling the coolant.

Fourth, if it REALLY IS getting above that temp, and doesn't cool down when moving, and you DON'T have the air dam, then it's CRITICAL that you get one in there. You're right, it's a sort of plastic blade about 4-5" tall that goes right below the rad; its purpose is to create a high-pressure area in front of the rad to force air to go through it, and a low-pressure zone right behind it (JUST as important as the high-pressure zone, IF NOT MORE SO) to give the air a place to go after it passes through.
Thanks a lot, have only had the car for about a month and it all just seems the same. Just cautious with the heat. I will probably try and change the sending unit.
Reply
Old Apr 15, 2013 | 12:09 PM
  #4  
ASE doc's Avatar
Supreme Member
 
Joined: Apr 2010
Posts: 4,337
Likes: 29
From: Aurora, OR
Car: 87 IROC Z28
Engine: 355 cid TPI
Transmission: Custom Built 700R4 w/3,500 stall
Axle/Gears: QP fab 9" 3.70 Truetrac
Re: Overheating a little

If you're quick about making the sender swap, have the new unit ready to go and in one hand while you pull the installed unit out with the other hand, you can do it without losing much coolant. One more thing, if the engine gets hot driving around town, the dam may not be the main cause. The dam has more of an effect as speed increases. How is the coolant? If it's dirty and rusty, you may have a restricted radiator core. If the coolant is older than 3 years, it's due for a flush anyway. Also, the space between the AC condenser and the radiator collects alot of junk and could be 1/2 way plugged which will severely reduce the system's cooling capacity. You would never know that this area is full of crud since you cant see it. Have to pull the radiator back away from the condenser.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Bubbajones_ya
Cooling
24
Jul 6, 2024 08:32 PM
sheachopper
Cooling
11
Jul 31, 2019 11:27 AM
mustangman65_79
Exhaust
16
Sep 1, 2015 03:51 PM
JHX
Tech / General Engine
4
Aug 29, 2015 02:30 PM
jbd1969
Tech / General Engine
1
Aug 17, 2015 07:06 PM




All times are GMT -5. The time now is 06:29 AM.