Question about 2003 Chevrolet Silverado 1500

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Engine light just came on. What are the possibilities? Can it be nothing more than low anti-freeze?

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When the check engine light comes on, there can be many issues. If it where me I would do one of two things to make sure that you do not have a more serious issue. Check all your fluids, and make sure that they are correct, drive it over to auto zone and have then run a diagnostic check and see what the trouble codes are then go from there with repairs. Diagnosing a trouble light without the code is impossible, you will need to have the code read. Once you get it read, if you have any questions about how to repair it then reply to this and someone can assist you with how to fix what your problem may be. Good luck

Posted on Nov 07, 2010

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2 Answers

2002 Nissan Altman looseing anti freeze but nothing under the car


Many possible causes. Leak can be when you drive, but not show on your driveway. The heater could be leaking into the passenger area, though you'd likely smell the "maple syrup" smell of anti-freeze.

It's also possible that you have a head gasket leak into the coolant, causing the overheating, and blowing some of your coolant out. Get a compression test on the cooling system, and a compression check on the cylinders.

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My oil light suddenly goes on & makes noise- the 1999 Town & Country stalls once in a while-what could be the problem?


Could be time for a new van.
The oil light is warning the driver engine oil pressure has dropped below 10 psi, not necessarily that the engine is low on oil.
Common causes for low oil pressure is a faulty oil pump or screen, or worn engine parts.
The fact you are also adding coolant and you don't see any external leaks sounds like the engine is reaching the end of its life.

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If your coolant level is full the low coolant switch is probably faulty they are normaly just a float & the float might be stuck. & Coolant should be used all year round as it is not just anti freeze but is (Anti freeze, Anti boil, & acidity, alkalinity regulator.) It changes the freezing/boiling point (water freeze at o degrees centegrade & boil at 100 degrees but with glycol it changes this depending on what % glycol there is in the system. The acid/alkaline regulator is corosion inhibitor to prevent parts being eaten from the inside out (radiators, heater cores, welsh plugs etc..)

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Check the level in your overflow tank for anti-freeze make sure it is at the appropriate level. Sometimes when the level is lower it will trigger the check engine light. Once the sensor is trigger it will trigger other components of the vehicle. If it is low, just add a little anti-freeze and water to the appropriate level.

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The coolant sensor liight come on when the Anti-freeze get low. Just top off the ant-freeze and the light will go out. It is norrmal for anti-freeze level to go down but slow. Toping off once or twice a year is ok but anymore then that you really should check for leaks. Low anti-freeze will cause over heating. Over heating can wreak an engine.

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a heater uses the temperature of the cars water, running threw a heat exchanger if the heater core has failed water will not circulate threw the engine properly this will and can cause over heating as well as nothing blowing from the heater. good luck.heater cores are generally inexpensive parts to replace.

last thing you can check if heater core is ok. is the thermostat.

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1 Answer

Engine light suddenly went on...I know I need antifreeze..would that cause the engine light to go on?


Yellow engine light is emission problem red check engine light is engine problem and the anti freeze low may have made it come on so could the oil being a quart low check both to be sure.

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1 Answer

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First thing you have to do is check the coolant level. It is possibly very low on anti- freeze, or frozen up from the anti freeze not being strong enough.

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1 Answer

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It sounds like the WaterPump is Bad. On this Car I would have a Mechanic Repair this. It can be Really tough to Replace on your Own. Please Rate My Response! Thanks!

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