I have a 95 Chevy Lumina 3.1 and the problem is I drive around first thing in the morning when the engine is cold and the temperature will rise all the way upto 260 (Red line) and is blowing cold air out the vents. I took it to a mechaninc who purged the air out of the system, and that worked after i took it from him (engine still warm), next morning did the same thing (hot no heat), mechanic then changed t-stat that he replaced last year. Doing the same thing (hot no heat). i then have looked around and heard either intake manifold gasket or head gasket. i then took it to the mechanic to see again what he thought it could be, he called around to his mechanic buddies and said probably head gaskets. but there is no oil or anti freeze in each other so there is no leak going to ruin the engine. So i was going to change the intake man. gaskets but i decided to take to another garage and they said there was a small leak in the water pump and changed that... still the same problem...HELP!!!!
2007-02-17 01:18:31 · 9 answers · asked by mtsz52784 2 in Cars & Transportation ➔ Car Makes ➔ Chevrolet
sounds like either a head gasket or an intake, take the vehicle to a chevrolet dealership and have them perform a cylinder leakdown test. do not assume there isnt a cylinder head leak just because you do not have oil and coolant mixed, it could be an external leak from the gaskets or head itself of coolant. have it checked out by a factory trained technician, even if you dont have it fixed there, at least then you know you are having your vehicle looked at by someone who knows then insides and outsides of the vehicle well... not to mention that repairs done at a General Motors Dealership carry a parts and labor warranty...
2007-02-17 03:58:16 · answer #1 · answered by heathergrrlie 2 · 0⤊ 0⤋
First look at the coolant surge tank and see if the level is low, that will tell you if you are loosing coolant. The most common issue with that engine is a leaking intake gasket. It may be hard to see where the leak is but if you look on the passesnger side of the engine where the lower intake meets the engine you may see a trace of coolant. If the system is leaking and gets air bound it will cause the symptoms you describe.
2007-02-17 01:25:43 · answer #2 · answered by Delphi 4 · 0⤊ 0⤋
I have a 93 Chevy Lumina. I did some engine work and I think I broke a vacuum line. After that, the heat was permanently stuck on defrost.
2016-03-28 23:55:45 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Did you get something clogging the system? Some debris perhaps in the heater core? Something blocking one of the lines to the heating core? Are they one of those cars that have 2 t-stats (yes there are some out there that have 2). Pull the hoses and push water through each part and make sure it is flowing freely. Take the t-stat completely out and see if the car still wants to overheat. Take the radiator out and back purge it. Did leaves/debris get in front of the heater core? Heating core fan not spinning?
Just throwing some suggestions out there to help you out...
Good luck!
2007-02-17 01:36:23 · answer #4 · answered by jimponder 5 · 0⤊ 0⤋
ok i found you can get bad water pump,,, but it could lay in the bottomk hose, as you drive the car it bottom hole will suck close,, too it could be you got a t -stat, heavy that to strong for your car, now when you crank the car , an it start to heat up , go to the back of the car an see if water comeing from the tail pipe, , the head gaste could be blow, an blowing the water out it, now if this is all ok , cheack the water in the rad, , it the water is full, it could be the fan , not blowing ,if you have a fan not blowing are a cluck fan look at it
2007-02-17 01:31:23 · answer #5 · answered by ghostwalker077 6 · 0⤊ 0⤋
I own a shop, and have seen this same question on here many time this year. Low on coolant, and/or air in system, is the answer. If you will do a search on here for "Chevy Lumina Overheating" you will get a wealth of information on how to find and fix the problem.
Glad to help out, Good Luck!!!
2007-02-17 01:27:40 · answer #6 · answered by Anonymous · 0⤊ 1⤋
i use to own a 92 lumina mine did same thing my husband completely took out the therma stat got the water to circulate through the radiator with a water hose. he tried using a small therma stat, finally he just completely took out the therma stat, and it ran fine afterwards didn't even over heat. good luck with yours
2007-02-17 01:32:59 · answer #7 · answered by ladyoutlaw71 2 · 0⤊ 0⤋
More than likely it is the quick connector for the heater hose,if you here the noise on the driver's side of the engine.
2007-02-17 01:29:52 · answer #8 · answered by tom C 2 · 0⤊ 0⤋
Sounds like you need to re-bleed air out of hoses.It has to be done while engine is cold.It's easy to do.Take bleeders out and fire it up.When water starts coming out of bleeder holes;put them back in.Just takes a couple of minutes.Good luck.
2007-02-17 01:32:20 · answer #9 · answered by joystoy33 3 · 0⤊ 0⤋