Footballjoe Posted October 9, 2010 Share Posted October 9, 2010 2004 Nissan Sentra. 4 cyc. The AC is not working. There only appears to be 1 belt and that is good. That's all I had time to check. Could there be a fuse? I guess I need to check to see if the compressor kicks in. Anything else? Thanks Quote Link to comment Share on other sites More sharing options...
rocknrobn26 Posted October 9, 2010 Share Posted October 9, 2010 2004 Nissan Sentra. 4 cyc. The AC is not working. There only appears to be 1 belt and that is good. That's all I had time to check. Could there be a fuse? I guess I need to check to see if the compressor kicks in. Anything else? Thanks Check for leaks? Recharge? Quote Link to comment Share on other sites More sharing options...
tbimm Posted October 10, 2010 Share Posted October 10, 2010 Many different things can cause this. If you want me to walk you through a few tests PM me for a phone # Quote Link to comment Share on other sites More sharing options...
buddahj Posted October 10, 2010 Share Posted October 10, 2010 Many different things can cause this. If you want me to walk you through a few tests PM me for a phone # Like low refrigerant level, no power to the compressor or a restriction in the a/c system to name a few. Quote Link to comment Share on other sites More sharing options...
tbimm Posted October 10, 2010 Share Posted October 10, 2010 Bad relays and control modules as well as an inop condenser fan motor as well. Quote Link to comment Share on other sites More sharing options...
Footballjoe Posted October 10, 2010 Author Share Posted October 10, 2010 Can't we just hope its a fuse? Quote Link to comment Share on other sites More sharing options...
Footballjoe Posted October 10, 2010 Author Share Posted October 10, 2010 This may be an very ignorant question but I will ask it anyhow. When doing a wheel alignment nowadays does the mechanic have to go under the hood for any reason? The reason I ask is that my wife says the AC was working very well until we got it back from the Firestone Shop. I am just wondering if they could have knocked something loose or had to unplug something to get computer readings and perhaps forgot to plug it back in. If this is an idiot question then all I can say is Quote Link to comment Share on other sites More sharing options...
buddahj Posted October 10, 2010 Share Posted October 10, 2010 This may be an very ignorant question but I will ask it anyhow. When doing a wheel alignment nowadays does the mechanic have to go under the hood for any reason? The reason I ask is that my wife says the AC was working very well until we got it back from the Firestone Shop. I am just wondering if they could have knocked something loose or had to unplug something to get computer readings and perhaps forgot to plug it back in. If this is an idiot question then all I can say is not on a Nissan Sentra Quote Link to comment Share on other sites More sharing options...
tbimm Posted October 10, 2010 Share Posted October 10, 2010 This may be an very ignorant question but I will ask it anyhow. When doing a wheel alignment nowadays does the mechanic have to go under the hood for any reason? The reason I ask is that my wife says the AC was working very well until we got it back from the Firestone Shop. I am just wondering if they could have knocked something loose or had to unplug something to get computer readings and perhaps forgot to plug it back in. If this is an idiot question then all I can say is There is no onboard diagnostics that need to be done for a wheel alignment. Quote Link to comment Share on other sites More sharing options...
tbimm Posted October 11, 2010 Share Posted October 11, 2010 Did you figure out what's going on with the AC yet? Quote Link to comment Share on other sites More sharing options...
Footballjoe Posted October 16, 2010 Author Share Posted October 16, 2010 I had a little time today to look at it after I changed the brake shoes. I could not tell for sure what relay went to AC but all of them had duplicates but one so I switched them around. Could be that on that I can't switch with another. The relay cover is not marked but the relays have numbers on them but not sure how to tell what they go to. They appear to be circuit type number i.e. 1-2-4-5-7 something like that. The fuse cover is marked and I switch around the fan fuses. I did notice that neither of the (2) radiator coolant fans ever came on. I ran the car with the AC on and the heat but they never came on. Also does not seem like the compressor is kicking in. Usually when you cut on the AC you hear it come on and the engine sounds different but nothing appears to happening when turning the AC on. How long would the car usually have to run before they kick in? Is in the low 70's here today. Quote Link to comment Share on other sites More sharing options...
redrumjuice Posted October 17, 2010 Share Posted October 17, 2010 the AC was working very well until we got it back from the Firestone Shop. That's like getting fantasy football advice from fantasy aces. Quote Link to comment Share on other sites More sharing options...
Chief Dick Posted October 17, 2010 Share Posted October 17, 2010 That's like getting fantasy football advice from fantasy aces. This actually made me laugh out loud. Quote Link to comment Share on other sites More sharing options...
Footballjoe Posted October 19, 2010 Author Share Posted October 19, 2010 bump Quote Link to comment Share on other sites More sharing options...
westvirginia Posted October 19, 2010 Share Posted October 19, 2010 bump Fire up the car, run the AC. Does the compressor pulley turn, and then cut right back off? Probably a coolant/freon issue. If the compressor doesn't run at all (or even attempt to) then it's probably an electrical issue of some kind. If you get the run/quick shutoff then try adding some freon with oil charge and leak detector. Go from there. Quote Link to comment Share on other sites More sharing options...
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