Question about 1999 Saturn SL

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Don't know what warning light means

Can't find my manual for 1999 Saturn SL1. Warning light next to the coolant light is flashing (both are simultaneously actually) and don't know what it is supposed to signify. Anyone familiar with this that could help? Thank you.

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  • geezala Nov 18, 2009

    No, my temperature guage is not rising higher than normal. I just had my oil changed last week Monday, and when these lights came on yesterday for the first time we checked both the coolant and oil and both were at proper levels. My vehicle does have 99,300+ miles on it. Two weekends ago I did have my PCM under the dash fixed as it had come unconnected. Since then I did have low oil (it was stupid I meant to check it had been doing a lot of driving back and forth due to moving and just forgot cus I was busy with a million things). Had them change oil and it is fine now.

    In receiving another gentleman's response, the warning light looks like a rectangle w/ an arrow pointing down inside the box. And in the box along the bottom is a wave looking thing like for water or something. Above the box is what would look like a button to press or something of that nature.

  • John Remenyi May 11, 2010

    Is the temperature rising higher than normal? Have you checked your oil and coolant levels? Only check coolant with engine off and cold. Many GM products have had faulty coolant level sensors. If all fluid levels are OK, and the vehicle runs and drives fine, the sensor is very likely the culprit. If you check your coolant and find it is low, or that there is orange-brown sludge or goop accumulated in the radiator or the overflow tank, a coolant system flush and refill with universal coolant is highly recommended. The original coolant is called Dex-Cool, and can turn into sludge and corrode certain components in some circumstances. Be sure to have all coolant removed and replaced with universal antifreeze if a flush is performed. Your local parts store may be able to scan the car for trouble codes, which will help to narrow the possibilities.



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What exactly does the warning light look like? It is probably the transmission warning light. The transmission uses the radiator to cool the transmission fluid. You need to have your cooling system serviced on a 10 year old car. Drain, flush, fresh coolant, new thermostat. A full service. Keep driving and you may end up with a transmission repair. Good luck.

Posted on Nov 18, 2009

Testimonial: "Haven't actually been to the garage yet to have this advice tried and tested, but will take it seriously and have it done ASAP. Thank you."

  • NOT ME Nov 18, 2009

    OK, that is the low coolant warning light. You have almost 100,000 miles on this car. Time to service the cooling system. Something is amiss if it is not overheating. Do not ignore this and neglect this service. Fresh coolant and a new thermostat immediately.



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