Why would the check coolant light come on in a 1999 Pontiac Montana?
Hey Leonard, Either it is low on coolant or the sensor needs to be cleaned. GoodluckJoe Also it could be a leaking intake gasket. To check for this look at your oil cap and see if it is white and also checkjust below the valve covers to see if there is any coolent and or oil on the sides of the engine the light will come on when, rad. fluid is low due to a leak, )many causes.) due to a bad hose ,loose clamp,a leaking water pump, or you are loosing fluid into your engine. check you oil and look for rad coolant fluid in it. you may have a blown head gasket. i just went through the same thing with the only exception being when i did notice the temp gauge went up past the normal running range i immediatly pulled over waited for the motor to cool down. When the teardown was completed we found not only was the intake leaking but i had a blown head gasket as well, best of luck to you. With the closed pressurized systems, the coolant can boil off if the gasket on the radiator cap gets old and hard. Replacing the cap is inexpensive. If it doesn't solve the problem then further investigation is needed.
My 1996 Pontiac sunfire low coolant light won't go off though the coolant is not low and every once and a while my check engine light come on and when that happens my ETS goes off what my problem?
1) You actually have a low coolant level. Top off your radiator, bleed out the air in the system, and check the LOW COOLANT light again. 2) The coolant level sensor, located on the coolant recovery tank, has gone bad or became disconnected. Check to see if it is connected. If it is disconnected, plug it in and check for the LOW COOLANT light. If it IS connected, disconnect it and verify that the LOW…
The low coolant sensor is etiher plugded, broken, or your coolant is actually low. Check the radiator and resivor tank to see if they are full. If they are and the light is on, drain the coolant. Be careful not to break the plastic petcock. The sensor is located next to the battery on the right side of the car. Remove the battery and pull the sensor out. Clean it or replace it. then put…
Why is the temp gauge lower than normal and check engine light comes on intermittently on 2002 Pontiac Montana?
What could be wrong when the check engine light comes on in a 1998 Pontiac Sunfire but the engine coolant is full?
Your check engine light just dosent check only your coolant. It's a light for your OBD (ON BOARD DIAGNOSTIC) system. That light reads numorus sensors. you will have to get a code reader hooked up to your car. if i would guess, it would probly be your o2 sensor.(oxygen sensor) --------------------------------------- For what it's worth, make sure that you tighten your fuel cap securely. If it's loose, it will "throw" a code. Most auto parts…
On a 2004 Grand Prix would a check engine light come on if coolant needs to be changedsince it has not been changed in 127k miles?
Your check engine light will not come on because your coolant needs to be changed. The only way to be totally sure why it is on you should get it checked with a computer at a dealer or service station. The check engine light may come on if it is over heating because there is no coolant in it but not if it just has to be changed.