# Weather related **URL:** \ **Category:** General Discussion\ **Tags:** nissan, pickup\ **Created:** [August 16, 2016, 3:11pm UTC](https://community.cartalk.com/t/weather-related/94680 "2016-08-16T15:11:07Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![familyguy](https://avatars.discourse-cdn.com/v4/letter/f/f07891/32.png) [@familyguy](https://community.cartalk.com/u/familyguy)\ **Post date:** [August 16, 2016, 3:11pm UTC](https://community.cartalk.com/t/weather-related/94680/1 "2016-08-16T15:11:07Z")
about two month ago replace a bad alternator and belt. about two week ago only when weather temperature change belt squeal as long as it hot no problem. if it start raining belt squeal if I hit the gas change the(RPM) it stop squealing until I get to a stop sign. and it start squealing again but like I said as long as weather is hot no problem. ---
**Author:** ![kurtwm1](https://avatars.discourse-cdn.com/v4/letter/k/13edae/32.png) [@kurtwm1](https://community.cartalk.com/u/kurtwm1)\ **Post date:** [August 16, 2016, 3:45pm UTC](https://community.cartalk.com/t/weather-related/94680/2 "2016-08-16T15:45:50Z")
belt is probably too loose ---
**Author:** ![oldtimer-11](https://avatars.discourse-cdn.com/v4/letter/o/e79b87/32.png) [@oldtimer-11](https://community.cartalk.com/u/oldtimer-11)\ **Post date:** [August 16, 2016, 4:22pm UTC](https://community.cartalk.com/t/weather-related/94680/3 "2016-08-16T16:22:03Z")
It looks like English but I can’t understand what you are saying. ---
**Author:** ![bing](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/bing/32/4619_2.png) [@bing](https://community.cartalk.com/u/bing)\ **Post date:** [August 16, 2016, 5:15pm UTC](https://community.cartalk.com/t/weather-related/94680/4 "2016-08-16T17:15:29Z")
Bad or poor quality belt, tensioner not working properly, pulleys out of alignment or worn, or bad alternator alignment, pulley, drag. I dunno what else to say except those are pretty much the options. I only use Delco alternators anymore due to the crap that’s on the market but I haven’t had to buy one in years. ---
**Author:** ![Mustangman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mustangman/32/44130_2.png) [@Mustangman](https://community.cartalk.com/u/Mustangman)\ **Post date:** [August 16, 2016, 8:58pm UTC](https://community.cartalk.com/t/weather-related/94680/5 "2016-08-16T20:58:41Z")
Worn and/or glazed belt. It grips when dry, slips when wet. Time to replace it… check the tensioners and the pulleys, too. ---
**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\ **Post date:** [August 17, 2016, 1:23am UTC](https://community.cartalk.com/t/weather-related/94680/6 "2016-08-17T01:23:12Z")
If the belt is new and looks ok, and the belt tension is correct, I’d guess the alternator you installed has a failing bearing. The replacement alternator is probably a rebuilt unit, maybe something wrong w/the bearing they installed to rebuild it, or they didn’t bother to install a new bearing. Double check the belt and belt tension and belt alignment first. But if those all look ok, you’ll probably have to replace the alternator with a known good one as a test to see if it makes the noise go away. If it does, a least you know the cause and can decide what to do about it at that point. Edit: You could temporarily loosen the belt so the alternator didn’t spin too as a temporary test, as long as there’s nothing on that belt routing that is critical, like the water pump. ---
**Author:** ![the\_same\_mountainbike](https://avatars.discourse-cdn.com/v4/letter/t/c89c15/32.png) [@the\_same\_mountainbike](https://community.cartalk.com/u/the_same_mountainbike)\ **Post date:** [August 22, 2016, 2:59am UTC](https://community.cartalk.com/t/weather-related/94680/7 "2016-08-22T02:59:12Z")
Tensioner and belt are the most likely fix. The belt may be young in terms of miles, but if it’s been squealing it’s probably glazed. ---
**Author:** ![Rod-Knox](https://avatars.discourse-cdn.com/v4/letter/r/a183cd/32.png) [@Rod-Knox](https://community.cartalk.com/u/Rod-Knox)\ **Post date:** [August 22, 2016, 9:34pm UTC](https://community.cartalk.com/t/weather-related/94680/8 "2016-08-22T21:34:01Z")
Attempt to turn the alternator pulley counterclockwise using a socket on the pulley nut. If the alternator pulley slips on the belt as it turns the belt tensioner is weak. NOTE; do not rotate the pulley more than about 1/4 turn backwards if it is not slipping on the belt. If the belt doesn’t slip it will rotate the cranksaft and camshaft backwards and in a few turns may damage the timing gear/chain.