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99 lumina with a coolant leak it seems to be coming from the top of the engine What might be the cause?
Wiki User
∙ 11y ago
There could be known problem with the Intake Manifold gasket decomposing due to the heat and chemical reaction with the Anti-Freeze solution. Chevy denies this but
there have been class action lawsuites filed about this problem.
The gasket is about $50.00 and a new Intake Manifold is about $100.00 if you buy
them at AutoZone. Labor to replace is about $150.00 depending on where you get
your car serviced.
If this is your problem, get the gasket replaced ASAPbecause when it fails, the
cylinders will fill with Anti-Freeze and lock up the engine. You will not be able to
turn over the engine. This of course can allow Anti-Freeze to mix with the engine
oil, especially if the Piston Rings are worn.
If you see a white or yellow gooey sludge on your dipstick, you have Anti-Freeze mixing with your oil. Get this problem fixed before you have to replace the entire engine.
The symptoms of a failing gasket can be varied, but mine were as follows:
I noticed the level of Anti-Freeze in the Overflow tank was low every two or three
days.
I noticed Anti-Freeze on the ground where I parked my car.
The engine seemed to run hotter than usual on several occassions. The temperature
guage would spike and then come down within a minute of so.
Just before the total failure of the gasket, my engine started missing like one or two
cylinders were not firing.
Replacing the spark plugs and spark plug wires, and the Coil Pack made no difference.
Replacing the thermostat made no difference.
Replacing the water pump made no difference, but I did notice some green or black
slime in the water.
Papa4
OR, you simply have a bad thermostat and radiator cap and too much pressure and heat are building up in the cooling system. Check the oil dipstick. Look at the water in the radiator. If there looks like there is oil in the coolant, get it to a mechanic ASAP.
Wiki User
∙ 11y ago
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You found the drain plug but no coolant is coming out of the car?
Assuming there is coolant in the engine the most likely cause is a build up of sediment behind the coolant drain or in the coolant drain tap itself.
What could be the cause of a coolant leak on the back of the engine on a lumina 97 so that the coolant seeps down through the side of the transmission pan?
This sounds like a common problem with the 3.1L and 3.4L v6 of the lower intake manifold leaking. TechJK ----------------------
Can no coolant in reservoir cause engine not to start?
Coolant is used to keep an engine in a vehicle at a temperature safe for operation. If no coolant is in the reservoir, an engine will not start.
What can cause white smoke coming out of engine while going up a hill?
Head gasket more than likely! White smoke is coolant.
What would cause a 1989 sunbird 2.0lL K engine to a have coolant leak coming from drain plug in firewall Not leaking inside coolant coming from rubber elbow connected through firewall?
If it's leaking from INSIDE the firewall (away from the engine compartment) you probably have a leaking heater control valve or damaged heater core.
Is an engine coolant leak bad?
Yes, If to much leaks out this will cause the engine to over heat, smoke and or stall hence the name engine COOLant :)
Could coolant leaking from a water pump cause your engine to read cold at the gauge?
No, low coolant would cause the opposite.
How do you know when your water pump on your 1995 Chevy Lumina is bad?
One way is: with a cold engine, take off the radiator cap, start the engine and let it run to operating temp, and look into the radiator to see if you see any coolant flowing usually from one side of the radiator to the other. If you look in the radiator and the coolant is not moving, then your water pump is probably gone, and don't overheat your engine. Without coolant flowing through the engine you cna overheat the engien and cause severe damage.
What would cause a 1990 Chev lumina to flood when cold starting it?
if you press the pedal to much that is what can cause the engine to flood
What would cause a 2005 impala to run hot?
water pump, oil, water, engine coolant....main cause would be engine coolant, just check to see if you have a leak.
Could the temp coolant sensor cause the truck to run cold?
The coolant sensor moniters the coolant temperature. A faulty thermostat could cause the engine to run cool.
What would cause a fishy smell coming from the car?
Two Fish ^ l l ...No. Most likely something to do with your coolant (antifreeze). Old coolant may take on a fishy odor; there is also the possibility that coolant is being burned somehow. In any case, a flush and refill of your engine's coolant couldn't hurt.
