# 1991 monteo ,uh oh ! overheats at idle

**URL:** <https://community.cartalk.com/t/1991-monteo-uh-oh-overheats-at-idle/13561>\
**Category:** Maintenance/Repairs\
**Created:** [May 3, 2008, 2:17am UTC](https://community.cartalk.com/t/1991-monteo-uh-oh-overheats-at-idle/13561 "2008-05-03T02:17:14Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![maico\_490](https://avatars.discourse-cdn.com/v4/letter/m/9dc877/32.png) [@maico\_490](https://community.cartalk.com/u/maico_490)\
**Post date:** [May 3, 2008, 2:17am UTC](https://community.cartalk.com/t/1991-monteo-uh-oh-overheats-at-idle/13561/1 "2008-05-03T02:17:14Z")

</div>

have a 91 montero,LS,only overheats at idle. what to do.  
  
  
  
 3.0l  
  
 clutch fan  
  
 a-c  
  
 5spd

---

<div class="post-metadata">

**Author:** ![Dave\_G](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/dave_g/32/768_2.png) [@Dave\_G](https://community.cartalk.com/u/Dave_G)\
**Post date:** [May 3, 2008, 2:21am UTC](https://community.cartalk.com/t/1991-monteo-uh-oh-overheats-at-idle/13561/2 "2008-05-03T02:21:56Z")

</div>

Well this is a sympton of a failed fan. When the car is in motion the air rushing through the radiator cools the engine, but at a stop with no fan to cool the radiator it will start to overheat. If the fan is working correctly we can look to the next possibility.

---

<div class="post-metadata">

**Author:** ![maico\_490](https://avatars.discourse-cdn.com/v4/letter/m/9dc877/32.png) [@maico\_490](https://community.cartalk.com/u/maico_490)\
**Post date:** [May 3, 2008, 2:24am UTC](https://community.cartalk.com/t/1991-monteo-uh-oh-overheats-at-idle/13561/3 "2008-05-03T02:24:30Z")

</div>

thank you ! will check the fan.

maico.

---

<div class="post-metadata">

**Author:** ![Xebadaih](https://avatars.discourse-cdn.com/v4/letter/x/d07c76/32.png) [@Xebadaih](https://community.cartalk.com/u/Xebadaih)\
**Post date:** [May 3, 2008, 3:04am UTC](https://community.cartalk.com/t/1991-monteo-uh-oh-overheats-at-idle/13561/4 "2008-05-03T03:04:49Z")

</div>

It could also be low coolant, bad water pump a clogged coolant hose or even air in the system.