In a message dated 8/13/01 4:48:15 PM Eastern Daylight Time, [EMAIL PROTECTED] writes: > -------------------- 4 -------------------- > Hello all, > > My car (96 SE) is having a serious problem when I have > AC on. Everything is fine until the car gets hot. > When outside temp goes around 90 degrees, it start to > act all funny. I understand the AC compressor eats > power, but it seems to eat too much power when it gets > hot. > > AC compressor gets louder and almost sound like the > Supercharged engine. It's definitely quieter when > it's cooler. When it's hot, Engine stalls when I stop > the car or drop the rpm too quick. I have to rev up > to 2000rpm to launch without making the car stall. > And the car accelerate like a semi truck. When the AC > compressor kicks on, idle speed drops down to 300rpm > for a second then goes up to 900rpm. At this temp, > engine makes pinging/knocking noise. It used to start > pinging terribly at 70 degrees, but I had the > incorrectly set timing. It is better after I > corrected it, but it still pings a little when it is > over 95 degrees. > > Next thing, when it goes up to 100 degrees, AC quits > working on me and blow hot smelly air. Engine start > to idle all weird like goes up and down between 900rpm > and 1300rpm. > > Ok here is what I tried. > Fixed Ignition timing (10degrees), idle speed (625rpm > with TPS disconnected), cleaned fuel system, TB, MAF, > IAT, EGR valve, K&N filter, replaced PCV valve, Spark > plugs (NGK V-power gapped 0.044in), New NGK plug wire, > new Distributor cap/rotor, fuel filter. And I always > use premium gas. I found one bad vacuum hose connect > to the EGR valve so I replaced, but nothing had > changed. Did I miss anything? > > That should take care the most pinging and stalling > problem, but something must be still wrong. Do you > guys have any idea? If you have any clue, please give > me some advice. I will appreciate your help. > > Thanks! > > Yosuke > > > > > try the battery and the alternator. I had turned the ac on one day when the > battery was dying and the car was in park and it just died......later, tony > +----------------------------------------------------------------------+ Have questions about your car? Try here: http://www.sentra.net
