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1998 Nissan Pathfinder Problem!

Tiny
MOMMADELL
  • MEMBER
  • 1998 NISSAN PATHFINDER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 160,000 MILES
The a/c only works when the fan is on "4" (of 1, 2, 3, 4). The fan blows just fine there, but nothing comes out (a/c or regular air) until it gets to "4".
Thanks!
Wednesday, June 25th, 2008 AT 12:14 PM

12 Replies

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Test the blower resistor with an ohm meter your eadings should be...
1&2= .5-.6 ohms
1&3= 1.4-1.6
1&4= 2.5-2.8
Also test the connector for power with a voltmeter.


https://www.2carpros.com/forum/automotive_pictures/62217_Blower_Resistor_1.jpg

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Wednesday, June 25th, 2008 AT 4:17 PM
Tiny
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I don't work on cars -- I just wanted some information for when I take it to a repair guy -- I don't want to be completely ignorant. I just need an idea of what it might be in case he says "You need a new XXXXXX for $$$$$!"
Thanks -
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Wednesday, June 25th, 2008 AT 5:19 PM
Tiny
MERLIN2021
  • MECHANIC
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OK but the resistor is an easy part to change.
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Thursday, June 26th, 2008 AT 2:33 AM
Tiny
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So should I just say "I think it's the blower resistor"? One person I talked to said it could be one of the "relay switches" -- I don't know what that means...

I appreciate your advice.
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Thursday, June 26th, 2008 AT 9:48 AM
Tiny
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What a customer should say, is "I need an estimate". Let them tell you what's wrong, if they son't get it right, they are on the hook, not you!
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Thursday, June 26th, 2008 AT 1:10 PM
Tiny
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Thanks for the opening line -- that helps -- but I have no way of knowing then if they DO get it right. You think it's something called the blower resistor? If he says I need a new this and that, I won't know what to say.

Thanks -
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Thursday, June 26th, 2008 AT 5:13 PM
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
All I can tell you from here is what the most common problem for your symtoms is, but it CAN be other things too. Say what I suggested.
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Friday, June 27th, 2008 AT 4:35 PM
Tiny
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You were absolutely right -- it was the blower resistor -- charged me 70 for the part and 52 for labor. I appreciate your advice, and I will use this service again!
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Wednesday, July 2nd, 2008 AT 12:04 AM
Tiny
MERLIN2021
  • MECHANIC
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OK, nice to be cool eh? Feedback and points works for me!
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Wednesday, July 2nd, 2008 AT 6:10 AM
Tiny
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I'm new to this service -- how do I leave feedback/points?
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Wednesday, July 2nd, 2008 AT 9:51 AM
Tiny
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Under your name is a blue give feedback, click on that! And thanks!
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Wednesday, July 2nd, 2008 AT 2:32 PM
Tiny
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I found what to click on - it's under your name, not mine - - but what is a point? Do I give 5 or 100? I have no idea what the scale is, and the popup window doesn't tell me. Thanks!
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Wednesday, July 2nd, 2008 AT 7:21 PM

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