When driving my 1991 toyota corolla in rainy weather, the engine sounds loud and rough.

Asked by Jul 16, 2012 at 04:17 PM about the 1991 Toyota Corolla DX

Question type: Maintenance & Repair

8 Answers


do you use your AC when it's raining with windows up vs not raining with windows down?

I think I know what Andrew is getting at...and I agree, tell us that...when you turn on the de-fogger, as you are likely to do when it's raining, the air is passed through the a/c condenser to remove moisture, so even if ambient temp is cold, your a/c compressor will be running

1 of 1 people found this helpful.

correction: it's not really a condenser, a condenser is where the gas is compressed, it's the device where the refrigerant EXPANDS, therefor cooling, and the name of it escapes me

No, I don't have the AC on. Just the fan to blow air.

That's what I mean though, you don't have to turn the a/c on, it comes on automatically whenever you blow air on the windshield to help remove moisture.


Evaporator is the word David is looking for.

1 of 1 people found this helpful.

The only reason I'm saying this is becasue the AC idle up feature on my car doesnt work and when i have the AC on it boggs my engine down and runs rough. Until if fix it i'm just gonna have to leave my foot on the gas while at an idle. Most cars turn the AC on automatically for AC functions and the defroster (the selection that blows on your windshield). It does this becasue the AC system not only cools air but dries it too.

1 of 1 people found this helpful.

Thank You Andrew, I just could not think of the word. I'm not trying to turn this in to a blog/conversation, page that's not what should go on here, but wanted to acknowledge that. @ spietro: please see what Andrew and I both are trying to explain: any time you blow air on the windshield the a/c will be on without you turning it on. The cold condenses the moist air and collects it there to drain, so the blower is putting out dry air, be it cold or warm/ fan only

1 of 1 people found this helpful.

Your Answer


Looking for a Used Corolla in your area?

CarGurus has 66,255 nationwide Corolla listings starting at $1,599.


Toyota Corolla Experts

  • #1
    Tom Demyan
  • #2
  • #3
View All

Related Models For Sale

Used Toyota Camry
807 Great Deals out of 71,623 listings starting at $1,400
Used Honda Civic
374 Great Deals out of 51,346 listings starting at $1,200
Used Honda Accord
553 Great Deals out of 91,963 listings starting at $1,495
Used Nissan Sentra
495 Great Deals out of 50,228 listings starting at $599
Used Hyundai Elantra
395 Great Deals out of 44,745 listings starting at $495
Used Hyundai Sonata
362 Great Deals out of 50,267 listings starting at $1,300

Used Cars For Sale

2018 Toyota Corolla For Sale
4 Great Deals out of 39,705 listings starting at $13,199
2017 Toyota Corolla For Sale
87 Great Deals out of 4,219 listings starting at $9,512
2016 Toyota Corolla For Sale
143 Great Deals out of 6,087 listings starting at $7,477
2015 Toyota Corolla For Sale
228 Great Deals out of 6,260 listings starting at $7,500
2014 Toyota Corolla For Sale
69 Great Deals out of 1,952 listings starting at $6,484

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.