high speed cooling fans not running, refrigerant blows off at compressor

40

Asked by Jul 13, 2010 at 11:11 PM about the 1999 Chrysler 300M

Question type: Maintenance & Repair

im having a problem with my 99 300m, the high speed cooling fans are not coming on. ive jumped the fans and they work, ive checked the relays and they are good as are all fuses. when the car is started cold and i run the air, the compressor makes a nasty noise immediately followed by a blow off at the compressor. when the car has run long enough to temp trigger the fans on (only the low speed run) this does not happen. the low speed fans keep the temp low enough to not trigger the high speed fans, there is some kind of switch , sending unit etc. on the a/c high pressure side that should also trigger the high speed fans. i believe this is where the problem is but i dont know what im looking for. what triggers the high speed fans in relation to the a/c running? what is it called and where is it located?

2 Answers

40

the car also has 1489 trouble code, high speed cooling fan circuit fault

3 of 3 people found this helpful.
20

Most likely the relay under the hood. There is one for Fan HI and one for Fan Low, and one for Fan HI/LO. It is probably the relay for the Fan Hi. Try changing that its only like 8 dollars at Autozone.

2 of 2 people found this helpful.

Your Answer

Add photo

Related Questions

Search Chrysler 300M Questions

Chrysler 300M Experts

#1 Jearod Leet
Jearod Leet
Reputation 430
#2 aztec626bf
aztec626bf
Reputation 400
#2 Felix Melendez
Felix Melendez
Reputation 400
View All

Related Models For Sale

Used Chevrolet Impala
575 Great Deals out of 35,566 listings starting at $899
Used Chevrolet Camaro
351 Great Deals out of 31,326 listings starting at $2,200
Used Ford Mustang
683 Great Deals out of 44,710 listings starting at $1,500
Used Nissan Maxima
334 Great Deals out of 24,260 listings starting at $1,999
Used Dodge Durango
263 Great Deals out of 21,137 listings starting at $1,500
Used Chevrolet Tahoe
583 Great Deals out of 32,919 listings starting at $1,500
Used Chevrolet Malibu
1,156 Great Deals out of 79,585 listings starting at $2,500
Used Chrysler Sebring
36 Great Deals out of 2,845 listings starting at $1,200
Used Jeep Grand Cherokee
1,075 Great Deals out of 73,141 listings starting at $1,200
Used Ford F-150
2,121 Great Deals out of 193,348 listings starting at $290

Used Cars For Sale

2002 Chrysler 300M For Sale
47 listings starting at $2,152

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.