1998 Nissan Frontier A/C only works on highest setting

Tiny
WOLFMAN79
  • MEMBER
  • 1998 NISSAN FRONTIER
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 143,000 MILES
My A/C has been acting up like this for almost a year already. I had no intentions of fixing but the 104 degree weather in TX is starting to become unbearable.

I noticed too, that when I have it on the highest setting for awhile, maybe like 20 minutes, it stops blowing out cool air.

The only work I've done to it so far was replace the A/C relay with no luck on fixing the problem.

Any ideas why it's not working on the other settings?

Thanks for your help.
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Thursday, August 12th, 2010 AT 5:04 PM

2 Replies

Tiny
RASMATAZ
  • MEMBER
Check and test the blower motor resistor
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Thursday, August 12th, 2010 AT 6:30 PM
Tiny
WOLFMAN79
  • MEMBER
Right after I posted this I was flipping through my automotive manual and checked the wiring schematic.

Took the blower motor resistor out and found that it was bad. Replaced it and the A/C works like a charm.

I'm still having issues with the loss of cooling after having it run a few minutes. I think I might have to recharge it. Any ideas?

Thanks for your quick response rasmataz!
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Thursday, August 12th, 2010 AT 7:46 PM

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