Overheating issues, Please help!
Thread Starter
Instructor
Joined: Apr 2003
Posts: 211
Likes: 0
From: Highlands Ranch Colorado
Overheating issues, Please help!
I just completed an ATI install (D-1SC) along with a new manifold, exaust, headers, 42# injectors...etc. I got the car tuned perfectly, but for some reason it keeps running hot, like really hot!! It is 45 degrees outside and I pegged the coolant gauge at 260 within 15 minutes of taking the car out. So I installed a 160 stat and that helped a little, but it's still running about 240. Water Wetter didn't help at all. Could it be my water pump? What else could I be missing here? Any help would be greatly appreciated! Thanks.
Melting Slicks
Joined: Mar 2002
Posts: 2,931
Likes: 2
From: Tx
Re: Overheating issues, Please help! (ColoradoSilver)
I had the same thing happen to me once, but it tuned out to be a problem with the gauge and the coolant was not really hot at all. I hooked up a scanner and it read about 190* even though the gauge on the dash would peg. Mine would be reading normal and then it would suddenly just peg (that gave me a clue that something funny was going on). I reset the PCM and the problem went away.
If the gauge rises slowly (or matches the readings of a scanner), you may have another problem.
There have been some overheating issues with the ATI setup related to the fan and shroud design, but your problem sounds different to me.
Here are some things to consider.
1. Did you get all the air pockets out of the cooling system after the refill. This is a common problem.
2. Is the fan coming on and is it spinning in the right direction (it should be pulling air)
3. Is your air dam and outer fan shroud in place.
If the gauge rises slowly (or matches the readings of a scanner), you may have another problem.
There have been some overheating issues with the ATI setup related to the fan and shroud design, but your problem sounds different to me.
Here are some things to consider.
1. Did you get all the air pockets out of the cooling system after the refill. This is a common problem.
2. Is the fan coming on and is it spinning in the right direction (it should be pulling air)
3. Is your air dam and outer fan shroud in place.
Racer
Joined: May 2000
Posts: 321
Likes: 0
From: Valencia, Los Angeles CA
Re: Overheating issues, Please help! (ColoradoSilver)
check your fan. It may be bad or wired backwards.
You should be able to put a piece of paper on the radiator on the front side and have it stick when the fan is running.
You should be able to put a piece of paper on the radiator on the front side and have it stick when the fan is running.
Thread Starter
Instructor
Joined: Apr 2003
Posts: 211
Likes: 0
From: Highlands Ranch Colorado
Re: Overheating issues, Please help! (ColoradoSilver)
Yes I've made sure all that is working properly. I flushed the cooling system and there are no air pockets, the fan is working correctly and the fan shroud and the lower air dam are both in place......what else could this be????
:banghead: :banghead: :banghead: :banghead: :banghead: :banghead:
:banghead: :banghead: :banghead: :banghead: :banghead: :banghead:
Le Mans Master
Joined: Nov 2000
Posts: 7,391
Likes: 3
From: Chandler AZ
Re: Overheating issues, Please help! (ColoradoSilver)
You and Mike posted at the same time... did you check rotation of your fan like Mike suggested? Also, a 160 t-stat will be more effective when you can get your fan reprogrammed for it...
[Modified by billreid1@***.net, 8:15 PM 5/19/2003]
[Modified by billreid1@***.net, 8:15 PM 5/19/2003]
Thread Starter
Instructor
Joined: Apr 2003
Posts: 211
Likes: 0
From: Highlands Ranch Colorado
Re: Overheating issues, Please help! (ColoradoSilver)
Problem solved!!! For some reason when the car was at idol, the fan would work, but anytime I was driving it or in traffic, it would switch off. Turns out the electrical system was shot. Got a new heavy duty fan in and now I can't get the coolant temp over 195 in stop and go traffic in 85 degree weather. I'm happy!!
:D :D :D :D :D :D :D :D :D :D
:D :D :D :D :D :D :D :D :D :D
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Thread Starter
Instructor
Joined: Apr 2003
Posts: 211
Likes: 0
From: Highlands Ranch Colorado
Re: Overheating issues, Please help! (ICULUKN-C5)
I'm not quite sure how it happened. There was a short in the wireing and the fan would cut in and out whenever it felt like it. Usualy it just stayed off. It turned out to be a really easy fix, just embarassed that it wans't the 1st thing that I checked!
