gas fumes thru AC on a '01 toyota corolla


Asked by Aug 05, 2013 at 06:24 PM about the 2001 Toyota Corolla LE

Question type: Maintenance & Repair

For the past few months I have been experiencing a crude gas odor coming in thru the
vents on the AC in my car.  This happens once in a while, not always;  when I turn on
the ignition and AC happens to be on, that’s when I experience it… but then it just
dissipates and goes back to a “normal” AC.  MY “check engine” light has been on
since then.  
I have already changed the two O2 sensors (1st one twice already) and also the
catalytic converter.  No one seems to know what’s going on and keep saying that
“there are no leaks” and that “everything is fine” with my car …when for sure I know it
Would you kindly advice as to what you think might be wrong with it?  Thank you very
much, Grace

2 Answers

If you detect the odor of gasoline then there is a leak. Probably in the emissions systems and probably vapor not liquid gasoline. When you say "everyone" do you mean mechanics at either the corner shop or dealer? All vacuum hoses need to be thoroughly inspected, look for one fallen off..cracked, deteriorated, whatever and also get your OBD codes scanned at any large parts house. Often they can pinpoint the culprit....or at least point you in the right direction. Check you gas cap. If you get any codes....P followed by 4 numbers..P0000..bring them back here and one of us will be happy to help you make a decision on what to do. You have a 1ZZ FE 1.8Liter. Meantime, is is less likely, but if there is a leak of liquid gasoline there is a risk of fire, please get those codes post haste because of that.

3 out of 3 people think this is helpful.

Thanks Mr. David. But I think this problem is related with Air Conditioning System because of odor only comes when AC switch ON and duration may be 1-2 minutes only. So that I think it will happen for chemical reaction between inside air and poly-ethylene which has been used for car interior. You can replace the ac filter and used charcoal filter must.It is correct? ---Mofazzel Hossain/Toyota Service_Bangladesh

Your Answer

Add photo

Related Questions

Search Toyota Corolla Questions

Toyota Corolla Experts

#1 FordNut
Reputation 15,030
#2 Tom Demyan
Tom Demyan
Reputation 2,100
#3 tenspeed
Reputation 1,750
View All

Related Models For Sale

Used Toyota Camry"
1,580 Great Deals out of 98,373 listings starting at $895
Used Honda Civic"
1,145 Great Deals out of 59,092 listings starting at $995
Used Honda Accord"
1,254 Great Deals out of 78,695 listings starting at $1,400
Used Toyota RAV4"
1,185 Great Deals out of 49,064 listings starting at $2,499
Used Nissan Altima"
1,340 Great Deals out of 87,462 listings starting at $1,095
Used Nissan Sentra"
857 Great Deals out of 49,791 listings starting at $500
Used Toyota Tacoma"
618 Great Deals out of 30,503 listings starting at $2,850
Used Hyundai Elantra"
832 Great Deals out of 50,800 listings starting at $1,995
Used Toyota Yaris"
94 Great Deals out of 7,240 listings starting at $1,995
Used Honda CR-V"
1,501 Great Deals out of 80,986 listings starting at $1,695
Used Toyota Prius"
499 Great Deals out of 24,799 listings starting at $1,795
Used Hyundai Sonata"
971 Great Deals out of 51,470 listings starting at $1,200
Used Ford Focus"
1,211 Great Deals out of 56,709 listings starting at $1,495
Used Toyota 4Runner"
366 Great Deals out of 18,995 listings starting at $2,200

Used Cars For Sale

2017 Toyota Corolla LE For Sale
9,703 listings starting at $16,843
2016 Toyota Corolla LE For Sale
38 Great Deals out of 5,606 listings starting at $11,995
2015 Toyota Corolla LE For Sale
149 Great Deals out of 2,760 listings starting at $9,990
2014 Toyota Corolla LE For Sale
69 Great Deals out of 1,869 listings starting at $8,883
2013 Toyota Corolla LE For Sale
114 Great Deals out of 1,875 listings starting at $6,990