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90 Olds temp light....please help
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Guest
Anonymous Poster
teaysvalleyguy@columbus.rr.com
May 15, 2007, 2:00 PM
Post #1 of 6
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90 Olds temp light....please help
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I have a 1990 Old 88 Delta and I have the Temp light on. I just installed a new thermostat, fan motor, and water pump.
The light is still comeing on and engine is still getting hot.
Any other idea's of what I can do to fix this. I am a single dad trying to survive.
Thanks alot in advance.
George
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
May 15, 2007, 6:30 PM
Post #2 of 6
(1251 views)
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Re: 90 Olds temp light....please help
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Does the fan come on? It's supposed to at a certain temp or when A/C is requested at any temp. Radiator itself may be weak itself,
T
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Guest
Anonymous Poster
May 16, 2007, 9:51 AM
Post #3 of 6
(1249 views)
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Re: 90 Olds temp light....please help
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Thanks for the reply. It is very appreciated.
The fan comes on no problem. The radiator seems to have a nice flow (which means that I can tell flow when car is running and cap is off)
I am just at wits end, I know they sell products to add to coolant to help with heating but hate to use those products.
Any other ideas??? Thanks again in advance.
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Guest
Anonymous Poster
May 16, 2007, 10:00 AM
Post #4 of 6
(1248 views)
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Re: 90 Olds temp light....please help
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Let me also say that I flushed the radiator about a month ago. Used the flush products, if this helps.
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
May 16, 2007, 10:23 AM
Post #5 of 6
(1247 views)
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Re: 90 Olds temp light....please help
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Sounds like radiator is ok but it is close to 18 YO if original. They can flow well and still not be up to snuff. Forget additives to enhance cooling. The only thing that helps is to reduce the anti-freeze protection from the standard -34F to perhaps -20F which will cool more effectively but not good if you deal with temps below that and you might consider an anti corrosion additive as lower concentration of anti-freeze will mean less corrosion protection.
That trick shouldn't be needed for almost any car but is required for some marine use as they really wail on cooling systems and need all they can get in large boats.
If this overheating is real you should feel it by putting your heat on full blast. Is it too hot or perhaps cold which can be caused by boiling coolant with near no heat transfer ability.
Also: Are shrouds and the air dam under car intact? That lower air dam forces air flow thru grille - they didn't put it there for its good looks. Many get ripped off with those parking bumpers and never get replaced. This would not effect low speed operation.
If you are unsure that the car is really overheating it should be checked with a thermometer or heat gun at the thermostat. Rad cap coolant there is ok for test but only if the upper hose goes to that side first. The temp switch might be wrong. Your new t-stat could be wrong but most are correct. That you can test by watching with it on a stove in water monitoring the temp and see it open.
That's all I can think of right now??
T
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Anonymous Poster
May 16, 2007, 11:03 AM
Post #6 of 6
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Re: 90 Olds temp light....please help
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Tom,
I want to thank you again for getting back to me so quickly.
The car is definatly getting hot. There is question there. It is so hot that it actually boiled over one day last week. This is when I knew there was a real problem.
The shrouds are gone, did nto realize that this would be an issue. I just thought they were kind of a brush guard. Let you know that you are close to hitting something. If this will help I will definatly go to a local junk yard and grab one to put on. I appreciate the help there.
It was checked yesterday by a mechanic with a heat gun and he said it was definatly overheating.
Tom, I want to thank you again and will see what I can do to get this fixed. Is a real pain in my rear end.
I will be sending a donation next week when I get paid. I appreciate quick responses and true concern.
George
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