Overheating
Thread Starter
Intermediate
Joined: Sep 2004
Posts: 26
Likes: 0
From: Reading Pennsylvania
Overheating
Recently purchased low-mileage all-stock '95 LT1 6-speed; car overheats after 10-15 minutes in traffic. Replaced corroded radiator, new water pump, thermostat, and sensors. Fans are engaging per factory specs and engine still overheats? Any ideas......
Racer
Joined: Jul 2004
Posts: 308
Likes: 0
From: Christiansburg VA
Just what temps are you talking about when you say "overheating?"
Did you backflush the cooling system as well?
Did you change the thermostat before the flush? If so...you might want to check/change the thermostat again.
You can pull the stat again..and check it's functionality with a pan of water and a thermometer. Put it on the stove and check to see what temperature the stat opens on (if at all).
I only say this because I've changed out stats on vehicles...performed a flush that showed some pretty nasty results...and then got a stuck thermostat a week later. After changing the thermostat again...all was well. I think in my case I clogged the new thermostat with some rust/sludge right after putting it in.
Also make sure you bleed out the system. You may have a large pocket(s) of air in the cooling system.
Do you have an extreme amount of dirt/oil caked up on the motor?
I'm sure others will have questions/suggestions.
Did you backflush the cooling system as well?
Did you change the thermostat before the flush? If so...you might want to check/change the thermostat again.
You can pull the stat again..and check it's functionality with a pan of water and a thermometer. Put it on the stove and check to see what temperature the stat opens on (if at all).
I only say this because I've changed out stats on vehicles...performed a flush that showed some pretty nasty results...and then got a stuck thermostat a week later. After changing the thermostat again...all was well. I think in my case I clogged the new thermostat with some rust/sludge right after putting it in.
Also make sure you bleed out the system. You may have a large pocket(s) of air in the cooling system.
Do you have an extreme amount of dirt/oil caked up on the motor?
I'm sure others will have questions/suggestions.
Last edited by DukeDiablo; Sep 20, 2004 at 04:52 PM.
Racer
Joined: Jul 2004
Posts: 308
Likes: 0
From: Christiansburg VA
You are flushing the coolant through the cooling system from inside the closed system. I'm probably not explaining this very well.
You are actually flushing the cooling system from the "back", or behind the thermostat. Hmm, still not very coherent...sorry.
It involves hooking a garden hose in-line with the system..and using the water pressure to flush it.
In any case...
Prestone makes a cheap backflush kit that you can install on just about any car.
http://www.acehardware.com/product/i...254883.1254883
http://forums.govteen.com/showpost.p...5&postcount=12
You are actually flushing the cooling system from the "back", or behind the thermostat. Hmm, still not very coherent...sorry.
It involves hooking a garden hose in-line with the system..and using the water pressure to flush it.
In any case...
Prestone makes a cheap backflush kit that you can install on just about any car.
http://www.acehardware.com/product/i...254883.1254883
http://forums.govteen.com/showpost.p...5&postcount=12
