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Chevrolet Repair/Heating suddenly gone

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Question
Its been a pretty cold winter in Ohio this year, the coldest one in 20 years with temperatures at 20-30 below zero. I've been home for winter break from college and I hadnt been driving my car much because it needed some repairs done on the windshield wiper transmission otherwise I could not see in the snow. My heating was perfect when it worked and the few times that I drove the car since leaving school, it was working fine. Its been about a week that I hadnt driven my car since the weather got bad and the temperatures went down and now my heat isnt working. I'm thinking that something froze that would affect the heating (maybe the anti-freeze/water mix or something else).


What are the possible things that may have gone wrong due to the weather or any other thing that may have caused my heating to suddenly stop working correctly? Also, how might I fix this issue? I have a Chevy Cavalier 2003 and it is otherwise in very good condition. Thanks!

Answer
HI FATRINA, BEING THAT THIS LOST HEAT VERY FAST LIKE..THE FIRST THING I WOULD CK IS REMOVE THE RADIATOR CAP AND CK THE COOLANT [ANTI-FREEZE]. MAKE SURE YOU CAN SEE IT IN THE RAD AND MAKE SURE IT IS NOT FROZEN..IF IT IS FROZEN..TOW IT TO A SHOP TO THAW IT OUT.DO N OT START IT LIKE THIS...THEN FLUSH THE COOLING SYSTEM WITH FRESH ANTI-FREEZE..IF YOU CAN SEE THE COOLANT IN THE RADIATOR AND IT IS NOT FROZEN..MAKE SURE IT IS FULL..IF IT IS NOT FULL TOP IT OFF AND THEN START IT UP AND WHEN THE ENGINE GETS WARMED MAKE SURE THE COOLANT LEVEL IS STILL FULL..ADD TO IT WHILE IT IS RUNNING IF NECESSARY...MAKE SURE YOU CK THE RADIATOR ITSELF AND NOT THE RESERVOIR..AFTER THE RADIATOR IS TOPPED OFF MAKE SURE THE RESERVOIR IS ALSO AT THE FULL MARK..LET ME KNOW HOW THIS GOES AND IF WE NEED TO GO FURTHER WE WILL..ONE LAST THING,IF THE COOLANT WAS LOW,TOP IT OFF AND GET THIS TO A SHOP AND HAVE THEM PRESSURE TEST THE COOLING SYSTEM FOR A POSSIBLE LEAK. LOW COOLANT WILL CAUSE LOW TO NO HEAT...USUALLY IF THE COOLANT IS LOW THERE IS A LEAK..GOOD LUCK TO YOU,,TOM...

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TOM SHEETS

Expertise

PLEASE READ ALL OF THIS BEFORE ASKING ANY QUESTIONS. IF THIS CHEVY SECTION IS MAXED OUT.YOU CAN REACH ME IN THE OLDS/BUICK SECTION. Will answer questions from 6:00am to 10:00pm all days [EST][[[ NO DIESEL OR PAINT QUESTIONS]]] will answer all 1965 to present QUESTIONS ON ALL GM'S on mechanics of these cars. Keep in mind i am not there in person i am going on what you are telling me !! PLEASE IF ASKING A QUESTION GIVE ME AS MUCH INFO AS POSSIBLE. THE MORE THE BETTER. SUCH AS YEAR,MAKE,MODEL,ENGINE SIZE. THIS WILL HELP ME HELP YOU. I will not be able to answer all questions because of some situations that i would really need to be there and see things for myself,such as electrical issues. In many cases i would need wiring diagrams. I can also give you an estimate on what the cost would be at our repair shop as an idea to help you. Keep in mind that my answer is ONLY MY ADVICE,ck with your mechanic as well.. >> THANK YOU, TOM..

Experience

I have been a ASE certified master mechanic for over 30 years and certified IN ALL 8 CATEGORIES,[engine repair,engine performance,auto trans,manual trans,clutches,steering and suspension,brakes,electrical systems,heating and air/cond. I am also a state CERTIFIED inspector for over 30 years. I do computer work [pcm]fault codes,pcm flashing,state inspection monitor readiness,repairs on exhaust,fuel service,[injection and carburetor,] charging system problems, running issues,alignments,frame problems,tire balance,struts and of course standard and anti-lock brakes.

Organizations
nys state auto repair industry and ase group.

Publications
N/A

Education/Credentials
high school,4 years of tech school,and many many hours of auto training with many gm classes and aftermarket training classes..

Awards and Honors
ASE MASTER TECH CERTIFIED IN ALL 8 CATEGORIES.NYS INSP LICENSE AND A/C CERTIFIED

Past/Present Clients
MANY CUSTOMERS IN OUR BUSY SHOP.

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