temp gauge climbing and temp light coming on.detroit 60
#11
06-24-2007, 08:05 PM
Re: temp gauge climbing and temp light coming on.detroit 60
Originally Posted by henboy1
Every time the whether is above 85 degrees my temp light comes on whenever the temp gauge starts to climb towards the red(around 210degrees) and this trips the buzzer.This is when the truck sees some hill and maybe 4% grade at about 30k ibs load or more.I have a 1993 FLD and I am not ready for an inframe until 6 months down the road.The Odo. reads 1.2million miles.
For example the the gauge was climbing into the red on monteagle on I-24 and I had to pull on the side for the temp to go down.I also have the fan switch but it only kicks on above 1500 rpm. The coolant level is normal.I did finally closed the faucets 2 days ago and that helped a bit but anytime above 85 degrees outside and I get this problem. Can flushing the radiator help?This truck just hates hills but I can hit 75 on the flats.Do I need to test the coolant mixture? Any ideas? check the concentration of your coolant first at what temp does the fan come on automatically?
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Bob H 
#12
06-25-2007, 09:43 PM
I was waiting for you Bob
I will rule out the bug in front of the radiator because the air cooler and ac condensor is convered by it.You are right Bob, I will do that test with the strips.The previous owner had those test strips in the truck to measure the coolent.I will let you know.The fan comes on around 210 degrees and it stays on until the gauge comes back to 180-200.Red line mark starts at 220.
#13
06-30-2007, 11:46 AM
I didn't do the test strips yet but I drained most ...
When I bought the truck I must have added about 4 gallons of just water in about a 6 month period and I just don't know why I did that.2 days ago I decided to buy 2 gallons of pure ( no mixture) of coolant.I opened one of the hoses and drained about 2gallons.I then poured the new coolant in.I hauled 30kibs for about 30 miles in 80 degree weather and the fan was kicking in normally(no temp light coming on) but not soo frequently as before.I am still monitoring this , but the real test comes when I really hit the road in 90 degree weather with about 35k ibs or more.I will do the test strips and hit the road to TX.I will update.
#14
06-30-2007, 06:18 PM
I've had problems in the past with a Freightliner that tended to overheat just as you're experiencing.
Do yourself a big favor and clean out the radiator, both inside and out, and your problem will most likely go away. Keep fooling with it, and you'll wind up really cooking it. Then you'll be looking at a new head, and still need to clean the radiator! I speaketh these words based on personal past experience!!! Make that <u>costly</u> experience......
#15
07-12-2007, 03:00 PM
I think I fixed my problem
I hauled 29k ibs to tx and the light or gauge never came on(90degree weather).Then again it may come on at 40kibs.I also learned something about my truck.If I don't drain my air tanks (by pulling the strings every so often)I hear this hissing sound as if there was an air leak when I apply the service brakes.After I drained out the tanks with the moisture gone, the leaking sound went away.
#16
07-12-2007, 10:32 PM
Re: where to get book with all the repair shops
Originally Posted by henboy1
I was helping a driver jump his truck when another driver requested he call a local shop to come fix the problem.He then pulled out a book with directory of all the shops in the area.Where can I get this book from?Can I buy this book from a truck stop?
We're currently out but should have some in stock shortly. -Joseph Freightliner of Savannah
#17
07-12-2007, 11:17 PM
Re: temp gauge climbing and temp light coming on.detroit 60
Originally Posted by henboy1
Every time the whether is above 85 degrees my temp light comes on whenever the temp gauge starts to climb towards the red(around 210degrees) and this trips the buzzer.This is when the truck sees some hill and maybe 4% grade at about 30k ibs load or more.I have a 1993 FLD and I am not ready for an inframe until 6 months down the road.The Odo. reads 1.2million miles.
For example the the gauge was climbing into the red on monteagle on I-24 and I had to pull on the side for the temp to go down.I also have the fan switch but it only kicks on above 1500 rpm. The coolant level is normal.I did finally closed the faucets 2 days ago and that helped a bit but anytime above 85 degrees outside and I get this problem. Can flushing the radiator help?This truck just hates hills but I can hit 75 on the flats.Do I need to test the coolant mixture? Any ideas? HB1..my truck is in the International shop right now, getting the heat sensor replaced. Have been fighting the temp for the last month, when climbing hills, especially loaded. Had already flushed the radiator, and made sure the grill was free of dirt and debris. Mechanic up in WV that diagnosed the sensor followed me up the road once I was loaded, and used an infrared temp gauge to diagnos my proplem. The shop found a short in the electric-over-air that needed fixing as well. :sad: :sad: What they told me at 3:30 though really hurt. They hooked their computer up to program the ECM...and their puter shorted out MY ECM !!! :cry: :cry:
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