well, with the a/c on and it's 105+ degrees, it would start to heat up. but without the a/c on in the same weather it would be okay. any ideas what i should look into first? although i have recently changed the coolant since i blew radiator hose a few weeks back.
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Overheating, help please!
- Thread starter Yawak
- Start date
Big Jim
Hard-core CEG'er
I would suspect fan operation. Many of our cars have two fans. One of them should come on any time the A/C is on.
loggerbomb
Hard-core CEG'er
isn't that the high speed switch/resistor? Maybe fan? Sounds like one is out, doesn't one always come on with the ac?
TRicker
Hard-core CEG'er
sounds about right. if you can't find any problems, try running the cooler thermostat.
Big Jim
Hard-core CEG'er
Just for fun, check the condition of your coolant. A clogged radiator could also behave this way.
98TredSVT
Veteran CEG'er
Not sure what's wrong, but I just made it a habit never to run the a/c when idling
loggerbomb
Hard-core CEG'er
how can i tell if my radiator is clogged?
98TredSVT
Veteran CEG'er
Well actually I never use it in traffic either, I only use it on the highway, the car has way less power with it on and when I have four people in the car it's barely drivable with the a/c on.
loggerbomb
Hard-core CEG'er
I'd say something isn't working properly if thats the case....
Big Jim
Hard-core CEG'er
Like I said, check the condition of your coolant. If it is cruddy, flush it out and get some good stuff in. Even a clear water flush usually removes radiator build-up or most of it.
Checking to see if the radiator is clogged is not so easy. In the old days you could remove the radiator cap and look at the rate of flow, but no cap on the radiator on our cars. You can remove both upper and lower hoses and run water through and see how well it flows. It may not tell you much if it is mildly clogged. You can use an infra-red temp gun and check the temperature in and out of the radiator to see if you get the expected temperature drop. This may still only tell you that a fan isn't working properly. If you can find access to the front of the radiator (a/c condenser is usually in the way), you can feel the radiator for hot and cold spots. You probably cannot find hot or cold spots with an infra-red temperature gun with the a/c condenser in the way.
loggerbomb
Hard-core CEG'er
If you haven't flushed it in a while, I would just go ahead and get it flushed.
Big Jim
Hard-core CEG'er
Sure. Then you will have an excuse to return and purchase that hose.
loggerbomb
Hard-core CEG'er
Hey I flush mine out once a year and haven't had an issue.
Big Jim
Hard-core CEG'er
what happens to what hose, when u flush it??? :shrug:
Read Loggerboms signature:
I was in the Home Depot a couple weeks ago shopping for a garden hose. I was tempted to buy the one from the shelf labeled, "150 ft Kink Free Ho". - WingBender
That's the hose I suggested he would have an excess to return and purchase.