Chevy SSR Forum banner

1 - 19 of 19 Posts

·
Premium Member
Joined
·
105 Posts
Discussion Starter #1
Well got my first permagrin tonight. First ride with my top down. After working on it since I got it. It was cool tonight with the top down so no a/c on. And my grin went away looked down and noticed it was running a little warm for the first time. most of the time it's below the 210 mark. Had to stop at several red lights and it got up to 220 to 230. Now I not happy again.
 

·
Premium Member
Joined
·
105 Posts
Discussion Starter #2
I saw in another post, that if I turn my ac fan on it makes the rad. fan run. Or did I read it wrong?
 

·
Registered
Joined
·
2,991 Posts
Mine shows 230 sometimes but it's because of bad stepper motor. (I'll get it fixed at some point). But, yes, turning on the a/c will force the radiator fan to kick on.

All that said, if you don't have stepper motor issues and you running 230 on a cool evening, something ain't right. Just turning on the A/C to kick the fan on is putting a band aid on something else.
 

·
Premium Member
Joined
·
853 Posts
Common problem with the SSR. The original fans are inadequate. simple-engineering.com offers a replacement for a reasonable price which is far better than the original. Not the most difficult of tasks to install. I saw Mike in AZ change one at the international rally last year in 4.5 minutes.
 

·
Registered
Joined
·
2,991 Posts
Common problem with the SSR. The original fans are inadequate. simple-engineering.com offers a replacement for a reasonable price which is far better than the original. Not the most difficult of tasks to install. I saw Mike in AZ change one at the international rally last year in 4.5 minutes.
Agree that Mike's fans are good upgrade. However running 230 on a cool evening is likely an indication of something else. Perhaps the fan isn't working at all?? I run mine in stop and go traffic in New Mexico 90 degree plus heat with a totally stock cooling system. It will rarely get up to 220 in the worst conditions.
 

·
Supporting SSR Hobbyist
Joined
·
10,069 Posts
Running at 225-230 in stop-and-go traffic in the evening with the AC off is NOT cause for alarm. It is within normal operating limits. Here’s why........

There are two software circuits in the computer that control the cooling fan.

With the AC turned off, the water temp is the only circuit in play...... Low speed fan will turn on at 226 and go off when the temp drops to 219. High speed fan comes on at 235 and turns back to low speed when the temp reaches 226.

When you turn on the AC, the computer will turn the fan onto low speed when the high side pressure reaches “normal” system pressure. If it is a really hot day and the head pressure is rather elevated, the computer may switch the fan to high speed in order to move more air across the condenser.

After you put this info into your brain, you may find that the system is working as designed..... even though you don’t like the numbers you are seeing.

With all the above values in mind, you also need to remember that the computer turns the main fan OFF at 35mph.... regardless of water temperature or AC system pressure.

This is why I tell all owners to get to know the “normal” temperature your truck runs at when cruising on the highway. Most should see 195-200........ put that “normal” temperature in your memory and guard it. When you find that your truck is running above “normal” on the highway, you have something amiss with the system, NOT the cooling fan. If your temperatures get elevated below 35mph, you need to look closely for an airflow issue. Usually because the fan is not running.

Hope this helps,

Mike
 

·
Registered
Joined
·
1,065 Posts
As stated before a common problem next time your out driving and you see the temp. rise pull over and see if the fan actually turns on when your parked with engine running. If not shut it off and give the fan housing a couple taps with a hammer sometimes they bind up. From your post looks like you just got your truck and are getting everything straightened out with roof, abs heat shield, shift linkage, etc. everyone who drives their trucks has gone thru this so don't feel like your the only one, enjoy the ride. Mikes replacement fan seems a little expensive but it's cheaper then an OEM replacement and does 100% better job. Enjoy your ride and try to make a few rallies there a lot of fun.
 

·
Premium Member
Joined
·
230 Posts
This is probably more for Mike in AZ than others, but maybe not. For years I've been told when you are showing an overheating problem you should turn on your
heater blower motor to reduce the temperature. Is this something that is still helpful with the SSR's? A temperary fix but helpful? WSK - LAZY ONE
 

·
Premium Member
Joined
·
230 Posts
SSR Trouble - You have to remove the cardboard in front of your grill to allow for the air to circulate and cool it down. Doesn't it
feel good and ride well? WSK - LAZY ONE
 

·
Premium Member
Joined
·
105 Posts
Discussion Starter #11
ok, after reading Mike in AZ. I guess my truck is ok, I think.
 

·
Premium Member
Joined
·
2,855 Posts
Be like Mike

Check and see if your fan is running when your vehicle temp goes up. I had the same problem and it was working, but not all of the time.

OEM fans tend to fail. If your R temp runs high at low speed and OK on the highway, it quite probably could be a faulty fan as Mike says. I had that problem from the day I purchased my SSR. I replaced the OEM with Mike's fan with a shroud. This stopped the problem. I also had my '05 tuned and the "normal" temp change was part of the tune. Again, I have the 6.0 not the 5.3 so YMMV on the tune.

These two things would be worth your time and money IMO. Neither is hard to do.

Dave
 

·
Premium Member
Joined
·
1,772 Posts
Before I upgraded my fan I would turn on the heat to circulate the coolant and it worked. Sitting on Las Vegas Blvd in 110+ always drove the temp up.
 

·
Tech Support/Research
Joined
·
1,683 Posts
High Running Temp

Some good recent information on a similar condition here:

https://www.ssrfanatic.com/forum/f5/running-hot-232066/

If neither the thermostat nor pressure cap have been replaced in your truck, I'd recommend replacing both. Both are easy to do and will remove known issues with these parts that deteriorate with age and mileage (seals in the pressure cap and thermostat). Also, ensure the pressure cap is seated properly when installed. It's easy to thread the cap on "crooked" and believe it is tight when it actually is not.
 

·
Registered
Joined
·
170 Posts
When towing my bass boat back from fishing my temps on the highway run pretty consistently 210, but when I pull off highway into my subdivision 1 mile and back up my drive to park boat in my garage it jumps to around 250!! Should I be concerned?????? Thanks!
 

·
Premium Member
Joined
·
726 Posts
When I had the tune put in mine,he changed the perametors on the temps that the fan comes on.He said they were way to high. Now in stop and go mine never gets over 210. Before the tne it was 220+.Maybe look into that also. The tune alone is well worth it.
 

·
One of the SoCal Nuts
Joined
·
28,395 Posts
When towing my bass boat back from fishing my temps on the highway run pretty consistently 210, but when I pull off highway into my subdivision 1 mile and back up my drive to park boat in my garage it jumps to around 250!! Should I be concerned?????? Thanks!
I would say YES you should be concerned. You should be checking to make sure the fan is running when you are backing into the garage and make sure you have an air dam under the radiator support, at least. If both of those criteria are met then how are you doing on temp with out the boat and all other circumstances the same? What is the weight of the boat?
 

·
Supporting SSR Hobbyist
Joined
·
10,069 Posts
When towing my bass boat back from fishing my temps on the highway run pretty consistently 210, but when I pull off highway into my subdivision 1 mile and back up my drive to park boat in my garage it jumps to around 250!! Should I be concerned?????? Thanks!
The 210 on the highway tells me that you either have a 2006 that is running “normally” at speed or a 2003-5 that is running about 10 degrees too hot on the highway. The 2006 has a minor tweak in the engine computer that causes the indicator to read about 10 degrees hotter than the earlier models..... so 200 is the “normal” temp for 2003-2005 on the highway and the 2006 is straight up 210 for “normal”..... Both are fine and both are fully functional across the entire temp range.

If you have a 2006, the 210 is your system regulating point... especially since the computer turns the fan off at 35mph. That’s perfect. The problem comes in when you drop below 35 and your cooling fan is supposed to come on to keep the engine below 226 or aid in the AC condenser airflow.

I STRONGLY urge you to test your main cooling fan by starting the engine, turning on the AC with the inside fan set to any speed and the recirculate button unlit. By the time you get the hood open, your AC system will be up to pressure and the computer will turn the main fan onto low speed. If your truck is blowing cold air out of the vents and the fan is not running - - - you have a bad fan.

Call me if you need help,

Mike
 
1 - 19 of 19 Posts
Top